Microsoft CVE Summary

This report contains detail for the following vulnerabilities:

Tag CVE ID CVE Title
.NET Framework CVE-2018-1039 .NET Framework Device Guard Security Feature Bypass Vulnerability
.NET Framework CVE-2018-0765 .NET and .NET Core Denial of Service Vulnerability
Adobe Flash Player ADV180008 May 2018 Adobe Flash Security Update
Azure CVE-2018-8119 Azure IoT SDK Spoofing Vulnerability
Common Log File System Driver CVE-2018-8167 Windows Common Log File System Driver Elevation of Privilege Vulnerability
Device Guard CVE-2018-8129 Windows Security Feature Bypass Vulnerability
Device Guard CVE-2018-8132 Windows Security Feature Bypass Vulnerability
Device Guard CVE-2018-0854 Windows Security Feature Bypass Vulnerability
GitHub CVE-2018-8115 Windows Host Compute Service Shim Remote Code Execution Vulnerability
Internet Explorer CVE-2018-8126 Internet Explorer Security Feature Bypass Vulnerability
Microsoft Browsers CVE-2018-8178 Microsoft Browser Memory Corruption Vulnerability
Microsoft Browsers CVE-2018-1025 Microsoft Browser Information Disclosure Vulnerability
Microsoft Edge CVE-2018-1021 Microsoft Edge Information Disclosure Vulnerability
Microsoft Edge CVE-2018-8123 Microsoft Edge Memory Corruption Vulnerability
Microsoft Edge CVE-2018-8179 Microsoft Edge Memory Corruption Vulnerability
Microsoft Edge CVE-2018-8112 Microsoft Edge Security Feature Bypass Vulnerability
Microsoft Exchange Server CVE-2018-8151 Microsoft Exchange Memory Corruption Vulnerability
Microsoft Exchange Server CVE-2018-8152 Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server CVE-2018-8154 Microsoft Exchange Memory Corruption Vulnerability
Microsoft Exchange Server CVE-2018-8159 Microsoft Exchange Elevation of Privilege Vulnerability
Microsoft Exchange Server CVE-2018-8153 Microsoft Exchange Spoofing Vulnerability
Microsoft Graphics Component CVE-2018-8165 DirectX Graphics Kernel Elevation of Privilege Vulnerability
Microsoft Graphics Component CVE-2018-8120 Win32k Elevation of Privilege Vulnerability
Microsoft Graphics Component CVE-2018-8164 Win32k Elevation of Privilege Vulnerability
Microsoft Graphics Component CVE-2018-8124 Win32k Elevation of Privilege Vulnerability
Microsoft Office CVE-2018-8148 Microsoft Excel Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8157 Microsoft Office Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8158 Microsoft Office Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8173 Microsoft InfoPath Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8168 Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft Office CVE-2018-8150 Microsoft Outlook Security Feature Bypass Vulnerability
Microsoft Office CVE-2018-8155 Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft Office CVE-2018-8147 Microsoft Excel Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8149 Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft Office CVE-2018-8156 Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft Office CVE-2018-8162 Microsoft Excel Remote Code Execution Vulnerability
Microsoft Office CVE-2018-8163 Microsoft Excel Information Disclosure Vulnerability
Microsoft Office CVE-2018-8160 Microsoft Outlook Information Disclosure Vulnerability
Microsoft Office CVE-2018-8161 Microsoft Office Remote Code Execution Vulnerability
Microsoft Scripting Engine CVE-2018-0955 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-1022 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8114 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8122 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0954 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8130 Chakra Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8128 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8177 Chakra Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8133 Chakra Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8137 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8139 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-8145 Chakra Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0946 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0945 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0951 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0953 Scripting Engine Memory Corruption Vulnerability
Microsoft Scripting Engine CVE-2018-0943 Chakra Scripting Engine Memory Corruption Vulnerability
Microsoft Windows CVE-2018-0958 Windows Security Feature Bypass Vulnerability
Microsoft Windows CVE-2018-8170 Windows Image Elevation of Privilege Vulnerability
Microsoft Windows CVE-2018-8136 Windows Remote Code Execution Vulnerability
Microsoft Windows CVE-2018-8174 Windows VBScript Engine Remote Code Execution Vulnerability
Windows COM CVE-2018-0824 Microsoft COM for Windows Remote Code Execution Vulnerability
Windows Hyper-V CVE-2018-0961 Hyper-V vSMB Remote Code Execution Vulnerability
Windows Hyper-V CVE-2018-0959 Hyper-V Remote Code Execution Vulnerability
Windows Kernel CVE-2018-8166 Win32k Elevation of Privilege Vulnerability
Windows Kernel CVE-2018-8127 Windows Kernel Information Disclosure Vulnerability
Windows Kernel CVE-2018-8897 Windows Kernel Elevation of Privilege Vulnerability
Windows Kernel CVE-2018-8134 Windows Elevation of Privilege Vulnerability
Windows Kernel CVE-2018-8141 Windows Kernel Information Disclosure Vulnerability

CVE-2018-0854 - Windows Security Feature Bypass Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0854
MITRE
NVD
CVE Title: Windows Security Feature Bypass Vulnerability
Description:

A security feature bypass vulnerability exists in Windows Scripting Host which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine.

To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.

The update addresses the vulnerability by correcting how Windows Scripting Host handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Security Feature Bypass

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Unlikely Exploitation Unlikely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0854
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0854 Matt Graeber of SpecterOps
https://specterops.io/


CVE-2018-0958 - Windows Security Feature Bypass Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0958
MITRE
NVD
CVE Title: Windows Security Feature Bypass Vulnerability
Description:

A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine.

To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.

The update addresses the vulnerability by correcting how Windows validates User Mode Code Integrity policies.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Security Feature Bypass

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0958
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Unknown Unknown None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0958 Lee Christensen (@tifkin_) of SpecterOps
https://twitter.com/tifkin_,https://www.specterops.io/


CVE-2018-0959 - Hyper-V Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0959
MITRE
NVD
CVE Title: Hyper-V Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system that could cause the Hyper-V host operating system to execute arbitrary code.

An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system.

The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0959
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Critical Remote Code Execution
4093118
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Critical Remote Code Execution
4093114
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Critical Remote Code Execution 4093114 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4094079 (Security Update) Critical Remote Code Execution 4088827 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4094079 (Security Update) Critical Remote Code Execution 4088827 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Critical Remote Code Execution
4093118
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Critical Remote Code Execution
4093118
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Critical Remote Code Execution
4093123
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Critical Remote Code Execution
4093123
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Critical Remote Code Execution
4093114
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Critical Remote Code Execution
4093114
Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Critical Remote Code Execution None Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0959 None

CVE-2018-0961 - Hyper-V vSMB Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0961
MITRE
NVD
CVE Title: Hyper-V vSMB Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate vSMB packet data. An attacker who successfully exploited these vulnerabilities could execute arbitrary code on a target operating system.

To exploit these vulnerabilities, an attacker running inside a virtual machine could run a specially crafted application that could cause the Hyper-V host operating system to execute arbitrary code.

The update addresses the vulnerabilities by correcting how Windows Hyper-V validates vSMB packet data.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0961
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Unknown Unknown None Base: 7.60
Temporal: 6.80
Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0961 None

CVE-2018-8119 - Azure IoT SDK Spoofing Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8119
MITRE
NVD
CVE Title: Azure IoT SDK Spoofing Vulnerability
Description:

A spoofing vulnerability exists when the Azure IoT Device Provisioning AMQP Transport library improperly validates certificates over the AMQP protocol. An attacker who successfully exploited this vulnerability could impersonate a server used duing the provisioning process.

To exploit this vulnerability, an attacker would need to perform a man-in-the-middle (MitM) attack on the network that provisioning was taking place.

This security update addresses the vulnerability by correcting how the AMQP Transport library validates certifcates.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Unlikely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8119
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
C SDK for Azure IoT Release Notes (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
Yes
C# SDK for Azure IoT Release Notes (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
Yes
Java SDK for Azure IoT Release Notes (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8119 John Spaith of Azure IoT


Tim Taylor of Azure IoT


Rajeev Vokkarne of Azure IoT


Cristian Pop of Azure IoT


CVE-2018-8122 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8122
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8122
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Internet Explorer 11 on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Critical Remote Code Execution 4092946
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Critical Remote Code Execution 4092946
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 8.1 for 32-bit systems 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Critical Remote Code Execution 4092946
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 8.1 for x64-based systems 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Critical Remote Code Execution 4092946
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows RT 8.1 4103725 (Monthly Rollup) Critical Remote Code Execution 4093114 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Moderate Remote Code Execution 4092946
4093118
Base: 6.40
Temporal: 5.80
Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2012 R2 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Moderate Remote Code Execution 4092946
4093114
Base: 6.40
Temporal: 5.80
Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 6.40
Temporal: 5.80
Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8122 Yuki Chen of Qihoo 360 Vulcan Team
http://www.360.com/


CVE-2018-8124 - Win32k Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8124
MITRE
NVD
CVE Title: Win32k Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.

The update addresses this vulnerability by correcting how Win32k handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8124
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8124 nyaacate of Viettel Cyber Security working with Trend Micro's Zero Day Initiative
http://www.zerodayinitiative.com/


CVE-2018-8126 - Internet Explorer Security Feature Bypass Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8126
MITRE
NVD
CVE Title: Internet Explorer Security Feature Bypass Vulnerability
Description:

A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies. The vulnerability could allow an attacker to bypass Device Guard UMCI policies.

To exploit the vulnerability, a user could either visit a malicious website or an attacker with access to the system could run a specially crafted application. An attacker could then leverage the vulnerability to run unsigned malicious code as though it were signed by a trusted source.

The update addresses the vulnerability by correcting how Internet Explorer validates UMCI policies.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Security Feature Bypass

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8126
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Internet Explorer 11 on Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2016 4103723 (Security Update) Low Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8126 Matt Nelson (@enigma0x3) of SpecterOps
https://twitter.com/@enigma0x3,https://www.specterops.io/


CVE-2018-8127 - Windows Kernel Information Disclosure Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8127
MITRE
NVD
CVE Title: Windows Kernel Information Disclosure Vulnerability
Description:

An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.

To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.

The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8127
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Information Disclosure
4093118
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Information Disclosure
4093118
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Information Disclosure
4093114
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Information Disclosure
4093114
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Information Disclosure 4093114 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Information Disclosure
4093118
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Information Disclosure
4093118
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Information Disclosure
4093118
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Information Disclosure
4093123
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Information Disclosure
4093123
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Information Disclosure
4093114
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Information Disclosure
4093114
Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Information Disclosure None Base: 4.70
Temporal: 4.20
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8127 Andrei Vlad Lutas of Bitdefender
https://www.bitdefender.com


Rohit Mothe of Project Minus Storm Team, Intel Corp.


CVE-2018-8128 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8128
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8128
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8128 None

CVE-2018-8129 - Windows Security Feature Bypass Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8129
MITRE
NVD
CVE Title: Windows Security Feature Bypass Vulnerability
Description:

A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine.

To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.

The update addresses the vulnerability by correcting how Windows validates User Mode Code Integrity policies.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Security Feature Bypass

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8129
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8129 Aaron Margosis of Microsoft


CVE-2018-8130 - Chakra Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8130
MITRE
NVD
CVE Title: Chakra Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8130
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8130 None

CVE-2018-8132 - Windows Security Feature Bypass Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8132
MITRE
NVD
CVE Title: Windows Security Feature Bypass Vulnerability
Description:

A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine.

To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.

The update addresses the vulnerability by correcting how Windows validates User Mode Code Integrity policies.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Security Feature Bypass

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8132
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass 4093111 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass 4093107 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass 4093119 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass 4093112 Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Security Feature Bypass None Base: 5.30
Temporal: 4.80
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8132 Alex Bass of Microsoft


CVE-2018-8134 - Windows Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8134
MITRE
NVD
CVE Title: Windows Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists in the way that the Windows Kernel API enforces permissions. An attacker who successfully exploited the vulnerability could impersonate processes, interject cross-process communication, or interrupt system functionality.

To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.

The security update addresses the vulnerability by helping to ensure that the Windows Kernel API properly enforces permissions.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8134
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8134 James Forshaw of Google Project Zero
http://www.google.com/


CVE-2018-8133 - Chakra Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8133
MITRE
NVD
CVE Title: Chakra Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8133
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8133 Lokihardt of Google Project Zero
https://www.google.com


CVE-2018-8136 - Windows Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8136
MITRE
NVD
CVE Title: Windows Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists in the way that Windows handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system.

To exploit the vulnerability, an attacker who has a domain user account could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions.

The security update addresses the vulnerability by correcting how Windows handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published. All versions of Windows Server 2008 are affected but an update is not yet available. This information will be amended and republished when a security update is available.


Low Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8136
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Low Remote Code Execution 4093111 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Low Remote Code Execution 4093111 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Low Remote Code Execution 4093119 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Low Remote Code Execution 4093119 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Low Remote Code Execution 4093107 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Low Remote Code Execution 4093107 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Low Remote Code Execution 4093112 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Low Remote Code Execution 4093112 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Low Remote Code Execution
4093118
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Low Remote Code Execution
4093118
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Low Remote Code Execution
4093114
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Low Remote Code Execution
4093114
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Low Remote Code Execution 4093114 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Unknown
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Unknown
Windows Server 2008 for Itanium-Based Systems Service Pack 2 Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Unknown
Windows Server 2008 for x64-based Systems Service Pack 2 Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Unknown
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Unknown
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Low Remote Code Execution
4093118
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Low Remote Code Execution
4093118
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Low Remote Code Execution
4093118
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Low Remote Code Execution
4093123
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Low Remote Code Execution
4093123
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Low Remote Code Execution
4093114
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Low Remote Code Execution
4093114
Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Low Remote Code Execution 4093119 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Low Remote Code Execution 4093119 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Low Remote Code Execution 4093112 Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Low Remote Code Execution None Base: 6.50
Temporal: 5.90
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8136 Kushal Arvind Shah of Fortinet's FortiGuard Labs


CVE-2018-8137 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8137
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8137
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8137 None

CVE-2018-8139 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8139
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8139
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8139 Johnathan Norman, Windows & Devices Group - Operating System Security Team


CVE-2018-8145 - Chakra Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8145
MITRE
NVD
CVE Title: Chakra Scripting Engine Memory Corruption Vulnerability
Description:

An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s computer or data.

To exploit the vulnerability, an attacker must know the memory address of where the object was created.

The update addresses the vulnerability by changing the way certain functions handle objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Unlikely Exploitation Unlikely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8145
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Important Information Disclosure None Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 10 on Windows Server 2012 4103768 (IE Cumulative)
4103730 (Monthly Rollup)
Low Information Disclosure 4092946
4093123
Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for 32-bit Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Important Information Disclosure 4092946
4093118
Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Important Information Disclosure 4092946
4093118
Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 8.1 for 32-bit systems 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Important Information Disclosure 4092946
4093114
Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 8.1 for x64-based systems 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Important Information Disclosure 4092946
4093114
Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows RT 8.1 4103725 (Monthly Rollup) Important Information Disclosure 4093114 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103768 (IE Cumulative)
4103718 (Monthly Rollup)
Low Information Disclosure 4092946
4093118
Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2012 R2 4103768 (IE Cumulative)
4103725 (Monthly Rollup)
Low Information Disclosure 4092946
4093114
Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows Server 2016 4103723 (Security Update) Low Information Disclosure 4093119 Base: 2.40
Temporal: 2.20
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for 32-bit Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for x64-based Systems 4103716 (Security Update) Important Information Disclosure 4093111 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Information Disclosure 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Information Disclosure 4093107 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Information Disclosure 4093112 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Information Disclosure None Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Low Information Disclosure 4093119 Base: 4.30
Temporal: 3.90
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8145 None

CVE-2018-8897 - Windows Kernel Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8897
MITRE
NVD
CVE Title: Windows Kernel Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system.

The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.


FAQ:

1. Is there an expected performance impact associated with the update for this vulnerability?

No. There is no anticipated performance impact associated with the update for this vulnerability.

2. Question: Does this update also require microcode updates that would be provided by a hardware OEM?

No. The Windows update fully resolves this vulnerability, and no additional hardware updates are needed.

3. Question: Is this vulnerability related to speculative execution side-channel attacks?

No. This issue results from the way in which Windows handles some debug exceptions and is unrelated to speculative execution side-channel attacks.


Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Unlikely Exploitation Unlikely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8897
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4134651 (Security Update) Important Elevation of Privilege 4018556 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4134651 (Security Update) Important Elevation of Privilege 4018556 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4134651 (Security Update) Important Elevation of Privilege 4018556 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4134651 (Security Update) Important Elevation of Privilege 4018556 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4134651 (Security Update) Important Elevation of Privilege 4018556 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8897 Nick Peterson, Everdox Tech LLCAndy Lutomirski
https://www.linkedin.com/in/everdox


ADV180008 - May 2018 Adobe Flash Security Update

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
ADV180008
MITRE
NVD
CVE Title: May 2018 Adobe Flash Security Update
Description:

This security update addresses the following vulnerabilities, which are described in Adobe Security Bulletin APSB18-16: CVE-2018-4944. ,


FAQ:

How could an attacker exploit these vulnerabilities? In a web-based attack scenario where the user is using Internet Explorer for the desktop, an attacker could host a specially crafted website that is designed to exploit any of these vulnerabilities through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit any of these vulnerabilities. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by clicking a link in an email message or in an Instant Messenger message that takes users to the attacker's website, or by opening an attachment sent through email.

In a web-based attack scenario where the user is using Internet Explorer in the Windows 8-style UI, an attacker would first need to compromise a website already listed in the Compatibility View (CV) list. An attacker could then host a website that contains specially crafted Flash content designed to exploit any of these vulnerabilities through Internet Explorer and then convince a user to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by clicking a link in an email message or in an Instant Messenger message that takes users to the attacker's website, or by opening an attachment sent through email. For more information about Internet Explorer and the CV List, please see the MSDN Article, Developer Guidance for websites with content for Adobe Flash Player in Windows 8.


Mitigations:

Workarounds:

Workaround refers to a setting or configuration change that would help block known attack vectors before you apply the update.

Prevent Adobe Flash Player from running You can disable attempts to instantiate Adobe Flash Player in Internet Explorer and other applications that honor the kill bit feature, such as Office 2007 and Office 2010, by setting the kill bit for the control in the registry.

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. To set the kill bit for the control in the registry, perform the following steps:

  1. Paste the following into a text file and save it with the .reg file extension.

     Windows Registry Editor Version 5.00
     [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{D27CDB6E-AE6D-11CF-96B8-444553540000}]
     "Compatibility Flags"=dword:00000400
    
     [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{D27CDB6E-AE6D-11CF-96B8-444553540000}]
     "Compatibility Flags"=dword:00000400
    
  2. Double-click the .reg file to apply it to an individual system.

    You can also apply this workaround across domains by using Group Policy. For more information about Group Policy, see the TechNet article, Group Policy collection.

Note You must restart Internet Explorer for your changes to take effect. Impact of workaround. There is no impact as long as the object is not intended to be used in Internet Explorer. How to undo the workaround. Delete the registry keys that were added in implementing this workaround. Prevent Adobe Flash Player from running in Internet Explorer through Group Policy Note The Group Policy MMC snap-in can be used to set policy for a machine, for an organizational unit, or for an entire domain. For more information about Group Policy, visit the following Microsoft Web sites:

Group Policy Overview What is Group Policy Object Editor? Core Group Policy tools and settings

To disable Adobe Flash Player in Internet Explorer through Group Policy, perform the following steps: Note This workaround does not prevent Flash from being invoked from other applications, such as Microsoft Office 2007 or Microsoft Office 2010.

  1. Open the Group Policy Management Console and configure the console to work with the appropriate Group Policy object, such as local machine, OU, or domain GPO.
  2. Navigate to the following node: Administrative Templates -> Windows Components -> Internet Explorer -> Security Features -> Add-on Management
  3. Double-click Turn off Adobe Flash in Internet Explorer and prevent applications from using Internet Explorer technology to instantiate Flash objects.
  4. Change the setting to Enabled.
  5. Click Apply and then click OK to return to the Group Policy Management Console.
  6. Refresh Group Policy on all systems or wait for the next scheduled Group Policy refresh interval for the settings to take effect. Prevent Adobe Flash Player from running in Office 2010 on affected systems Note This workaround does not prevent Adobe Flash Player from running in Internet Explorer. Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. For detailed steps that you can use to prevent a control from running in Internet Explorer, see Microsoft Knowledge Base Article 240797. Follow the steps in the article to create a Compatibility Flags value in the registry to prevent a COM object from being instantiated in Internet Explorer.

To disable Adobe Flash Player in Office 2010 only, set the kill bit for the ActiveX control for Adobe Flash Player in the registry using the following steps:

  1. Create a text file named Disable_Flash.reg with the following contents:
		[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Common\COM\Compatibility\{D27CDB6E-AE6D-11CF-96B8-444553540000}]
	"Compatibility Flags"=dword:00000400
  1. Double-click the .reg file to apply it to an individual system.
  2. Note You must restart Internet Explorer for your changes to take effect. You can also apply this workaround across domains by using Group Policy. For more information about Group Policy, see the TechNet article, Group Policy collection. Prevent ActiveX controls from running in Office 2007 and Office 2010

To disable all ActiveX controls in Microsoft Office 2007 and Microsoft Office 2010, including Adobe Flash Player in Internet Explorer, perform the following steps:

  1. Click File, click Options, click Trust Center, and then click Trust Center Settings.
  2. Click ActiveX Settings in the left-hand pane, and then select Disable all controls without notifications.
  3. Click OK to save your settings. Impact of workaround. Office documents that use embedded ActiveX controls may not display as intended. How to undo the workaround.

To re-enable ActiveX controls in Microsoft Office 2007 and Microsoft Office 2010, perform the following steps:

  1. Click File, click Options, click Trust Center, and then click Trust Center Settings.
  2. Click ActiveX Settings in the left-hand pane, and then deselect Disable all controls without notifications.
  3. Click OK to save your settings. Set Internet and Local intranet security zone settings to "High" to block ActiveX Controls and Active Scripting in these zones You can help protect against exploitation of these vulnerabilities by changing your settings for the Internet security zone to block ActiveX controls and Active Scripting. You can do this by setting your browser security to High.

To raise the browsing security level in Internet Explorer, perform the following steps:

  1. On the Internet Explorer Tools menu, click** Internet Option**s.
  2. In the Internet Options dialog box, click the Security tab, and then click Internet.
  3. Under Security level for this zone, move the slider to High. This sets the security level for all websites you visit to High.
  4. Click Local intranet.
  5. Under Security level for this zone, move the slider to High. This sets the security level for all websites you visit to High.
  6. Click OK to accept the changes and return to Internet Explorer. Note If no slider is visible, click Default Level, and then move the slider to High. Note Setting the level to High may cause some websites to work incorrectly. If you have difficulty using a website after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High. Impact of workaround. There are side effects to blocking ActiveX Controls and Active Scripting. Many websites on the Internet or an intranet use ActiveX or Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Blocking ActiveX Controls or Active Scripting is a global setting that affects all Internet and intranet sites. If you do not want to block ActiveX Controls or Active Scripting for such sites, use the steps outlined in "Add sites that you trust to the Internet Explorer Trusted sites zone". Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone

You can help protect against exploitation of these vulnerabilities by changing your settings to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone. To do this, perform the following steps:

  1. In Internet Explorer, click Internet Options on the Tools menu.
  2. Click the Security tab.
  3. Click Internet, and then click Custom Level.
  4. Under Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.
  5. Click Local intranet, and then click Custom Level.
  6. Under Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.
  7. Click OK to return to Internet Explorer, and then click OK again. Note Disabling Active Scripting in the Internet and Local intranet security zones may cause some websites to work incorrectly. If you have difficulty using a website after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly. Impact of workaround. There are side effects to prompting before running Active Scripting. Many websites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use Active Scripting to provide menus, ordering forms, or even account statements. Prompting before running Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to the Internet Explorer Trusted sites zone". Add sites that you trust to the Internet Explorer Trusted sites zone After you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to the Internet Explorer Trusted sites zone. This will allow you to continue to use trusted websites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.

To do this, perform the following steps:

  1. In Internet Explorer, click Tools, click Internet Options, and then click the Security tab.
  2. In the Select a web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.
  3. If you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.
  4. In the Add this website to the zone box, type the URL of a site that you trust, and then click Add.
  5. Repeat these steps for each site that you want to add to the zone.
  6. Click OK two times to accept the changes and return to Internet Explorer. Note Add any sites that you trust not to take malicious action on your system. Two sites in particular that you may want to add are *.windowsupdate.microsoft.com and *.update.microsoft.com. These are the sites that will host the update, and they require an ActiveX control to install the update.

Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Not Found Not Found Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

ADV180008
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Adobe Flash Player on Windows 10 for 32-bit Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 for x64-based Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1607 for 32-bit Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1607 for x64-based Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1703 for 32-bit Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1703 for x64-based Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1709 for 32-bit Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1709 for x64-based Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1803 for 32-bit Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 10 Version 1803 for x64-based Systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 8.1 for 32-bit systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows 8.1 for x64-based systems 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows RT 8.1 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows Server 2012 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows Server 2012 R2 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes
Adobe Flash Player on Windows Server 2016 4103729 (Security Update) Critical Remote Code Execution 4088785 Base: N/A
Temporal: N/A
Vector: N/A
Yes

Acknowledgements

CVE ID Acknowledgements
ADV180008 None

CVE-2018-8151 - Microsoft Exchange Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8151
MITRE
NVD
CVE Title: Microsoft Exchange Memory Corruption Vulnerability
Description:

An information disclosure vulnerability exists when Microsoft Exchange improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the remote system.

To exploit the vulnerability, an attacker would send a specially-crafted email to an affected Exchange Server.

The security update addresses the vulnerability by modifying how Microsoft Exchange handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8151
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 21 4091243 (Security Update) Important Information Disclosure 4073537 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Cumulative Update 19 4092041 (Security Update) Important Information Disclosure 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Cumulative Update 20 4092041 (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Service Pack 1 4092041 (Security Update) Important Information Disclosure 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2016 Cumulative Update 8 4092041 (Security Update) Important Information Disclosure 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2016 Cumulative Update 9 4092041 (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8151 Nicolas Joly of Microsoft Corporation
https://twitter.com/n_joly


CVE-2018-8152 - Microsoft Exchange Server Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8152
MITRE
NVD
CVE Title: Microsoft Exchange Server Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests. An attacker who successfully exploited this vulnerability could perform script/content injection attacks and attempt to trick the user into disclosing sensitive information.

To exploit the vulnerability, an attacker could send a specially crafted email message containing a malicious link to a user. Alternatively, an attacker could use a chat client to social engineer a user into clicking the malicious link.

The security update addresses the vulnerability by correcting how Microsoft Exchange validates web requests.

Note: In order to exploit this vulnerability, a user must click a maliciously crafted link from an attacker.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8152
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Exchange Server 2016 Cumulative Update 8 4092041 (Security Update) Important Elevation of Privilege 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2016 Cumulative Update 9 4092041 (Security Update) Important Elevation of Privilege None Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8152 Mohamed El Azaar


CVE-2018-8154 - Microsoft Exchange Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8154
MITRE
NVD
CVE Title: Microsoft Exchange Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. An attacker could then install programs; view, change, or delete data; or create new accounts.

Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Exchange server.

The security update addresses the vulnerability by correcting how Microsoft Exchange handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8154
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 21 4091243 (Security Update) Critical Remote Code Execution 4073537 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Cumulative Update 19 4092041 (Security Update) Critical Remote Code Execution 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Cumulative Update 20 4092041 (Security Update) Critical Remote Code Execution None Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2013 Service Pack 1 4092041 (Security Update) Critical Remote Code Execution 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2016 Cumulative Update 8 4092041 (Security Update) Critical Remote Code Execution 4073392 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Exchange Server 2016 Cumulative Update 9 4092041 (Security Update) Critical Remote Code Execution None Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8154 Nicolas Joly of Microsoft Corporation
https://twitter.com/n_joly


CVE-2018-8155 - Microsoft SharePoint Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8155
MITRE
NVD
CVE Title: Microsoft SharePoint Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.

The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.

The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8155
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft SharePoint Enterprise Server 2016 4018381 (Security Update) Important Elevation of Privilege 4018336 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft SharePoint Foundation 2013 Service Pack 1 4018398 (Security Update) Important Elevation of Privilege 4018304 Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8155 Ashar Javed of Hyundai AutoEver Europe GmbH
https://twitter.com/soaj1664ashar,https://www.hyundai-autoever.eu/


CVE-2018-8156 - Microsoft SharePoint Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8156
MITRE
NVD
CVE Title: Microsoft SharePoint Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.

The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.

The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8156
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Project Server 2010 Service Pack 2 3114889 (Security Update) Important Elevation of Privilege 2965302 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Project Server 2013 Service Pack 1 4022130 (Security Update) Important Elevation of Privilege 4018305 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft SharePoint Enterprise Server 2016 4018381 (Security Update) Important Elevation of Privilege 4018336 Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8156 Ashar Javed of Hyundai AutoEver Europe GmbH
https://twitter.com/soaj1664ashar,https://www.hyundai-autoever.eu/


CVE-2018-8160 - Microsoft Outlook Information Disclosure Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8160
MITRE
NVD
CVE Title: Microsoft Outlook Information Disclosure Vulnerability
Description:

An information disclosure vulnerability exists in Outlook when a message is opened. This vulnerability could potentially result in the disclosure of sensitive information to a malicious site.

To exploit the vulnerability, an attacker would have to send a malicious email to a user and convince the user to open the email. A connection to a remote SMB server could then be automatically initiated, enabling the attacker to brute-force attack the corresponding NTLM challenge and response in order to disclose the corresponding hash password. Depending on the URL contained in the malicious email, Outlook could fall back to initating a web request to a remote server, disclosing the the external IP of the user's system.

The security update addresses the vulnerability by correcting how Outlook processes embedded URLs.


FAQ:

I am being offered this update for software that is not specifically indicated as being affected in the Affected Software and Vulnerability Severity Ratings table. Why am I being offered this update?

When updates address vulnerable code that exists in a component that is shared between multiple Microsoft Office products or shared between multiple versions of the same Microsoft Office product, the update is considered to be applicable to all supported products and versions that contain the vulnerable component.

For example, when an update applies to Microsoft Office 2007 products, only Microsoft Office 2007 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2007, Microsoft Excel 2007, Microsoft Visio 2007, Microsoft Compatibility Pack, Microsoft Excel Viewer, or any other Microsoft Office 2007 product that is not specifically listed in the Affected Software table. Furthermore, when an update applies to Microsoft Office 2010 products, only Microsoft Office 2010 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2010, Microsoft Excel 2010, Microsoft Visio 2010, Microsoft Visio Viewer, or any other Microsoft Office 2010 product that is not specifically listed in the Affected Software table.

For more information on this behavior and recommended actions, see Microsoft Knowledge Base Article 830335. For a list of Microsoft Office products that an update may apply to, refer to the Microsoft Knowledge Base Article associated with the specific update.


Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
N/A Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8160
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Office 2010 Service Pack 2 (32-bit editions) 4022137 (Security Update) Important Information Disclosure 4018311 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office 2010 Service Pack 2 (64-bit editions) 4022137 (Security Update) Important Information Disclosure 4018311 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office Compatibility Pack Service Pack 3 4018308 (Security Update) Important Information Disclosure 4011715 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office Web Apps Server 2010 Service Pack 2 4022142 (Security Update) Important Information Disclosure 4018360 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 4022135 (Security Update) Important Information Disclosure 4018356 Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8160 Jens Müller of Ruhr-University Bochum
http://www.nds.rub.de/chair/people/jmueller/


CVE-2018-8161 - Microsoft Office Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8161
MITRE
NVD
CVE Title: Microsoft Office Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

The security update addresses the vulnerability by correcting how Microsoft Office handles objects in memory.


FAQ:

I have Microsoft Word 2010 installed. Why am I not being offered the 4022139 update? The 4022139 update only applies to systems running specific configurations of Microsoft Office 2010. Some configurations will not be offered the update.

I am being offered this update for software that is not specifically indicated as being affected in the Affected Software and Vulnerability Severity Ratings table. Why am I being offered this update? When updates address vulnerable code that exists in a component that is shared between multiple Microsoft Office products or shared between multiple versions of the same Microsoft Office product, the update is considered to be applicable to all supported products and versions that contain the vulnerable component.

For example, when an update applies to Microsoft Office 2007 products, only Microsoft Office 2007 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2007, Microsoft Excel 2007, Microsoft Visio 2007, Microsoft Compatibility Pack, Microsoft Excel Viewer, or any other Microsoft Office 2007 product that is not specifically listed in the Affected Software table. Furthermore, when an update applies to Microsoft Office 2010 products, only Microsoft Office 2010 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2010, Microsoft Excel 2010, Microsoft Visio 2010, Microsoft Visio Viewer, or any other Microsoft Office 2010 product that is not specifically listed in the Affected Software table.

For more information on this behavior and recommended actions, see Microsoft Knowledge Base Article 830335. For a list of Microsoft Office products that an update may apply to, refer to the Microsoft Knowledge Base Article associated with the specific update.


Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8161
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Office 2010 Service Pack 2 (32-bit editions) 4022139 (Security Update) Important Remote Code Execution 4018357 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office 2010 Service Pack 2 (64-bit editions) 4022139 (Security Update) Important Remote Code Execution 4018357 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office Web Apps 2010 Service Pack 2 4022142 (Security Update) Important Remote Code Execution 4018360 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office Web Apps Server 2013 Service Pack 1 4018393 (Security Update) Important Remote Code Execution 4018344 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft SharePoint Enterprise Server 2016 4018381 (Security Update) Important Remote Code Execution 4018336 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2010 Service Pack 2 (32-bit editions) 4022141 (Security Update) Important Remote Code Execution 4018359 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2010 Service Pack 2 (64-bit editions) 4022141 (Security Update) Important Remote Code Execution 4018359 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2013 RT Service Pack 1 4018396 (Security Update) Important Remote Code Execution 4018347 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2013 Service Pack 1 (32-bit editions) 4018396 (Security Update) Important Remote Code Execution 4018347 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2013 Service Pack 1 (64-bit editions) 4018396 (Security Update) Important Remote Code Execution 4018347 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2016 (32-bit edition) 4018383 (Security Update) Important Remote Code Execution 4018339 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Word 2016 (64-bit edition) 4018383 (Security Update) Important Remote Code Execution 4018339 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 4022135 (Security Update) Important Remote Code Execution 4018356 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Word Automation Services on Microsoft SharePoint Server 2013 Service Pack 1 4018388 (Security Update) Important Remote Code Execution 4018341 Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8161 Jens Müller of Ruhr-University Bochum
http://www.nds.rub.de/chair/people/jmueller/


CVE-2018-8162 - Microsoft Excel Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8162
MITRE
NVD
CVE Title: Microsoft Excel Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.


FAQ:

I am being offered this update for software that is not specifically indicated as being affected in the Affected Software and Vulnerability Severity Ratings table. Why am I being offered this update?

When updates address vulnerable code that exists in a component that is shared between multiple Microsoft Office products or shared between multiple versions of the same Microsoft Office product, the update is considered to be applicable to all supported products and versions that contain the vulnerable component.

For example, when an update applies to Microsoft Office 2007 products, only Microsoft Office 2007 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2007, Microsoft Excel 2007, Microsoft Visio 2007, Microsoft Compatibility Pack, Microsoft Excel Viewer, or any other Microsoft Office 2007 product that is not specifically listed in the Affected Software table. Furthermore, when an update applies to Microsoft Office 2010 products, only Microsoft Office 2010 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2010, Microsoft Excel 2010, Microsoft Visio 2010, Microsoft Visio Viewer, or any other Microsoft Office 2010 product that is not specifically listed in the Affected Software table.

For more information on this behavior and recommended actions, see Microsoft Knowledge Base Article 830335. For a list of Microsoft Office products that an update may apply to, refer to the Microsoft Knowledge Base Article associated with the specific update.


Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8162
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Excel 2010 Service Pack 2 (32-bit editions) 4022146 (Security Update) Important Remote Code Execution 4018362 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2010 Service Pack 2 (64-bit editions) 4022146 (Security Update) Important Remote Code Execution 4018362 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 RT Service Pack 1 4018399 (Security Update) Important Remote Code Execution 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 Service Pack 1 (32-bit editions) 4018399 (Security Update) Important Remote Code Execution 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 Service Pack 1 (64-bit editions) 4018399 (Security Update) Important Remote Code Execution 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2016 (32-bit edition) 4018382 (Security Update) Important Remote Code Execution 4018337 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2016 (64-bit edition) 4018382 (Security Update) Important Remote Code Execution 4018337 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions Click to Run (Security Update) Important Remote Code Execution None Base: N/A
Temporal: N/A
Vector: N/A
No
Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions Click to Run (Security Update) Important Remote Code Execution None Base: N/A
Temporal: N/A
Vector: N/A
No

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8162 Omair working with Trend Micro's Zero Day Initiative
http://www.zerodayinitiative.com/


CVE-2018-8163 - Microsoft Excel Information Disclosure Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8163
MITRE
NVD
CVE Title: Microsoft Excel Information Disclosure Vulnerability
Description:

An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data.

To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker must know the memory address location where the object was created.

The update addresses the vulnerability by changing the way certain Excel functions handle objects in memory.


FAQ:

I am being offered this update for software that is not specifically indicated as being affected in the Affected Software and Vulnerability Severity Ratings table. Why am I being offered this update?

When updates address vulnerable code that exists in a component that is shared between multiple Microsoft Office products or shared between multiple versions of the same Microsoft Office product, the update is considered to be applicable to all supported products and versions that contain the vulnerable component.

For example, when an update applies to Microsoft Office 2007 products, only Microsoft Office 2007 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2007, Microsoft Excel 2007, Microsoft Visio 2007, Microsoft Compatibility Pack, Microsoft Excel Viewer, or any other Microsoft Office 2007 product that is not specifically listed in the Affected Software table. Furthermore, when an update applies to Microsoft Office 2010 products, only Microsoft Office 2010 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2010, Microsoft Excel 2010, Microsoft Visio 2010, Microsoft Visio Viewer, or any other Microsoft Office 2010 product that is not specifically listed in the Affected Software table.

For more information on this behavior and recommended actions, see Microsoft Knowledge Base Article 830335. For a list of Microsoft Office products that an update may apply to, refer to the Microsoft Knowledge Base Article associated with the specific update.


Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Information Disclosure

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8163
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Excel 2010 Service Pack 2 (32-bit editions) 4022146 (Security Update) Important Information Disclosure 4018362 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2010 Service Pack 2 (64-bit editions) 4022146 (Security Update) Important Information Disclosure 4018362 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 RT Service Pack 1 4018399 (Security Update) Important Information Disclosure 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 Service Pack 1 (32-bit editions) 4018399 (Security Update) Important Information Disclosure 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2013 Service Pack 1 (64-bit editions) 4018399 (Security Update) Important Information Disclosure 4018350 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2016 (32-bit edition) 4018382 (Security Update) Important Information Disclosure 4018337 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Excel 2016 (64-bit edition) 4018382 (Security Update) Important Information Disclosure 4018337 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions Click to Run (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
No
Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions Click to Run (Security Update) Important Information Disclosure None Base: N/A
Temporal: N/A
Vector: N/A
No

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8163 Omair working with Trend Micro's Zero Day Initiative
http://www.zerodayinitiative.com/


CVE-2018-8164 - Win32k Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8164
MITRE
NVD
CVE Title: Win32k Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.

The update addresses this vulnerability by correcting how Win32k handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8164
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8164 Richard Zhu (fluorescence), working with Trend Micro's Zero Day Initiative
http://www.zerodayinitiative.com/


CVE-2018-8165 - DirectX Graphics Kernel Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8165
MITRE
NVD
CVE Title: DirectX Graphics Kernel Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.

The security update addresses the vulnerability by correcting how DXGKRNL handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8165
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8165 Richard Zhu (fluorescence), working with Trend Micro's Zero Day Initiative
http://www.zerodayinitiative.com/


CVE-2018-8166 - Win32k Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8166
MITRE
NVD
CVE Title: Win32k Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.

The update addresses this vulnerability by correcting how Win32k handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8166
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4131188 (Security Update) Important Elevation of Privilege 4093224 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.30
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8166 guangmingliu of Tencent ZhanluLab​
http://slab.qq.com/zhanlu.html


RanchoIce of Tencent ZhanluLab​
https://twitter.com/zhanlulab/,http://slab.qq.com/zhanlu.html


CVE-2018-8167 - Windows Common Log File System Driver Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8167
MITRE
NVD
CVE Title: Windows Common Log File System Driver Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.

The security update addresses the vulnerability by correcting how CLFS handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8167
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Elevation of Privilege 4093111 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Elevation of Privilege 4093107 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Elevation of Privilege 4093114 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4130944 (Security Update) Important Elevation of Privilege 4073079 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4130944 (Security Update) Important Elevation of Privilege 4073079 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4130944 (Security Update) Important Elevation of Privilege 4073079 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4130944 (Security Update) Important Elevation of Privilege 4073079 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4130944 (Security Update) Important Elevation of Privilege 4073079 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Elevation of Privilege
4093118
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Elevation of Privilege
4093123
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Elevation of Privilege
4093114
Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Elevation of Privilege 4093119 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Elevation of Privilege 4093112 Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Elevation of Privilege None Base: 7.00
Temporal: 6.70
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8167 bear13oy of DBAPPSecurity Co., Ltd
https://twitter.com/bear13oy,“http://www.dbappsecurity.com/“


CVE-2018-8168 - Microsoft SharePoint Elevation of Privilege Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8168
MITRE
NVD
CVE Title: Microsoft SharePoint Elevation of Privilege Vulnerability
Description:

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.

The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.

The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
N/A Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8168
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 4018390 (Security Update) Important Elevation of Privilege 4018342 Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft SharePoint Server 2010 Service Pack 2 4022145 (Security Update) Important Elevation of Privilege 4011712 Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8168 Ashar Javed of Hyundai AutoEver Europe GmbH
https://twitter.com/soaj1664ashar,https://www.hyundai-autoever.eu/


CVE-2018-8173 - Microsoft InfoPath Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8173
MITRE
NVD
CVE Title: Microsoft InfoPath Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists in Microsoft InfoPath when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft InfoPath. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

The security update addresses the vulnerability by correcting how Microsoft InfoPath handles objects in memory. By default, when a user opens an InfoPath form, a dialog box will appear informing the user that code will be running if they choose to open the form.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Elevation of Privilege

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
N/A Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8173
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Infopath 2013 Service Pack 1 (32-bit edition) 3162075 (Security Update) Important Elevation of Privilege None Base: N/A
Temporal: N/A
Vector: N/A
Maybe
Microsoft Infopath 2013 Service Pack 1 (64-bit edition) 3162075 (Security Update) Important Elevation of Privilege None Base: N/A
Temporal: N/A
Vector: N/A
Maybe

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8173 None

CVE-2018-8177 - Chakra Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-8177
MITRE
NVD
CVE Title: Chakra Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-8177
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-8177 None

CVE-2018-0824 - Microsoft COM for Windows Remote Code Execution Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0824
MITRE
NVD
CVE Title: Microsoft COM for Windows Remote Code Execution Vulnerability
Description:

A remote code execution vulnerability exists in "Microsoft COM for Windows" when it fails to properly handle serialized objects.

An attacker who successfully exploited the vulnerability could use a specially crafted file or script to perform actions. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file.

The security update addresses the vulnerability by correcting how "Microsoft COM for Windows" handles serialized objects.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Important Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation Less Likely Exploitation Less Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0824
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Windows 10 for 32-bit Systems 4103716 (Security Update) Important Remote Code Execution 4093111 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 for x64-based Systems 4103716 (Security Update) Important Remote Code Execution 4093111 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Remote Code Execution 4093107 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Remote Code Execution 4093107 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Remote Code Execution 4093112 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Remote Code Execution 4093112 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Remote Code Execution None Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Remote Code Execution None Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for 32-bit Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Remote Code Execution
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 7 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Remote Code Execution
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for 32-bit systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Remote Code Execution
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows 8.1 for x64-based systems 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Remote Code Execution
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows RT 8.1 4103725 (Monthly Rollup) Important Remote Code Execution 4093114 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4101477 (Security Update) Important Remote Code Execution 3108381 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4101477 (Security Update) Important Remote Code Execution 3108381 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4101477 (Security Update) Important Remote Code Execution 3108381 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4101477 (Security Update) Important Remote Code Execution 3108381 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4101477 (Security Update) Important Remote Code Execution 3108381 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Remote Code Execution
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Remote Code Execution
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4103712 (Security Only)
4103718 (Monthly Rollup)
Important Remote Code Execution
4093118
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Remote Code Execution
4093123
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 (Server Core installation) 4103726 (Security Only)
4103730 (Monthly Rollup)
Important Remote Code Execution
4093123
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Remote Code Execution
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2012 R2 (Server Core installation) 4103715 (Security Only)
4103725 (Monthly Rollup)
Important Remote Code Execution
4093114
Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 4103723 (Security Update) Important Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Remote Code Execution 4093119 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Remote Code Execution 4093112 Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes
Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Remote Code Execution None Base: 7.50
Temporal: 6.70
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0824 Nicolas Joly of MSRCE UK


CVE-2018-0943 - Chakra Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0943
MITRE
NVD
CVE Title: Chakra Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0943
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0943 None

CVE-2018-0945 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0945
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0945
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0945 Johnathan Norman, Windows & Devices Group - Operating System Security Team


CVE-2018-0946 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0946
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0946
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0946 Lokihardt of Google Project Zero
https://www.google.com


CVE-2018-0951 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0951
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0951
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0951 Yuki Chen of Qihoo 360 Vulcan Team
http://www.360.com/


CVE-2018-0953 - Scripting Engine Memory Corruption Vulnerability

(top)
CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0953
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Moderate Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely N/A Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0953
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Microsoft Edge on Windows Server 2016 4103723 (Security Update) Moderate Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes

Acknowledgements

CVE ID Acknowledgements
CVE-2018-0953 Lokihardt of Google Project Zero
https://www.google.com


Yuki Chen of Qihoo 360 Vulcan Team
http://www.360.com/


CVE-2018-0954 - Scripting Engine Memory Corruption Vulnerability

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CVE ID Vulnerability Description Maximum Severity Rating Vulnerability Impact
CVE-2018-0954
MITRE
NVD
CVE Title: Scripting Engine Memory Corruption Vulnerability
Description:

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website designed to exploit the vulnerability through a Microsoft browser and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the browser rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.


FAQ:
None
Mitigations:
None
Workarounds:
None
Revision:
1.0    2018-05-08T07:00:00    

Information published.


Critical Remote Code Execution

Exploitability Index

The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.

Exploitability Assessment for Latest Software Release Exploitability Assessment for Older Software Release Denial of Service Exploitability Assessment Publicly Disclosed Exploited
Exploitation More Likely Exploitation More Likely Not Applicable No No

Affected Software

The following tables list the affected software details for the vulnerability.

CVE-2018-0954
Product KB Article Severity Impact Supersedence CVSS Score Set Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 10 on Windows Server 2012 4103768 (IE Cumulative)
4103730 (Monthly Rollup)
Moderate Remote Code Execution 4092946
4093123
Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for 32-bit Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4103716 (Security Update) Critical Remote Code Execution 4093111 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Critical Remote Code Execution 4093119 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Critical Remote Code Execution 4093107 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Critical Remote Code Execution 4093112 Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Critical Remote Code Execution None Base: 4.20
Temporal: 3.80
Vector: CVSS:3.