Important 2018-05 archive

Executive Summary

A security feature bypass vulnerability exists in .Net Framework 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 .Net Framework instantiates COM objects.

Overview

Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Security Feature Bypass
Released May 8 2018
Last Updated May 8 2018
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

27 affected products
Product KB Article Severity Impact Restart Required
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4095873 (Monthly Rollup) 4095513 (Security Only) Important Security Feature Bypass 4076495, 4055267 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems 4103721 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems 4103721 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems 4095875 (Monthly Rollup) 4095515 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems 4095875 (Monthly Rollup) 4095515 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2012 4095872 (Monthly Rollup) 4095512 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 4095872 (Monthly Rollup) 4095512 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 4095875 (Monthly Rollup) 4095515 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 4095875 (Monthly Rollup) 4095515 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation) 4103721 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 4095874 (Monthly Rollup) 4095514 (Security Only) Important Security Feature Bypass 4055532; 4076492 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 4095874 (Monthly Rollup) 4095514 (Security Only) Important Security Feature Bypass 4055532; 4076492 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4095874 (Monthly Rollup) 4095514 (Security Only) Important Security Feature Bypass 4055532; 4076492 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4095874 (Monthly Rollup) 4095514 (Security Only) Important Security Feature Bypass 4055532; 4076492 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4095874 (Monthly Rollup) 4095514 (Security Only) Important Security Feature Bypass 4055532; 4076492 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems 4095876 (Monthly Rollup) 4095517 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems 4095876 (Monthly Rollup) 4095517 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows RT 8.1 4095876 (Monthly Rollup) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4096495 (Monthly Rollup) 4095519 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2012 4096494 (Monthly Rollup) 4095518 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) 4096494 (Monthly Rollup) 4095518 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 4095876 (Monthly Rollup) 4095517 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) 4095876 (Monthly Rollup) 4095517 (Security Only) Important Security Feature Bypass 4076494, 4074807, 4055266 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6.2/4.7/4.7.1 on Windows 10 Version 1607 for 32-bit Systems 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6.2/4.7/4.7.1 on Windows 10 Version 1607 for x64-based Systems 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6.2/4.7/4.7.1 on Windows Server 2016 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6.2/4.7/4.7.1 on Windows Server 2016 (Server Core installation) 4103723 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems 4103716 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems 4103716 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows 7 for 32-bit Systems Service Pack 1 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows 7 for x64-based Systems Service Pack 1 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows 8.1 for 32-bit systems 4096417 (Monthly Rollup) 4096236 (Security Only) Important Security Feature Bypass 4055266; 4074807; 4076494 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows 8.1 for x64-based systems 4096417 (Monthly Rollup) 4096236 (Security Only) Important Security Feature Bypass 4055266; 4074807; 4076494 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows RT 8.1 4096417 (Monthly Rollup) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4096418 (Monthly Rollup) 4096237 (Security Only) Important Security Feature Bypass 4076492, 4055532 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2012 4096416 (Monthly Rollup) 4096235 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2012 (Server Core installation) 4096416 (Monthly Rollup) 4096235 (Security Only) Important Security Feature Bypass 4055265; 4074806; 4076493 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2012 R2 4096417 (Monthly Rollup) 4096236 (Security Only) Important Security Feature Bypass 4055266; 4074807; 4076494 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1 on Windows Server 2012 R2 (Server Core installation) 4096417 (Monthly Rollup) 4096236 (Security Only) Important Security Feature Bypass 4055266; 4074807; 4076494 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.7.1 on Windows 10 Version 1709 for 32-bit Systems 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.7.1 on Windows 10 Version 1709 for x64-based Systems 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.7.1 on Windows Server, version 1709 (Server Core Installation) 4103727 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.7/4.7.1 on Windows 10 Version 1703 for 32-bit Systems 4103731 (Security Update) Important Security Feature Bypass Yes
Microsoft .NET Framework 4.7/4.7.1 on Windows 10 Version 1703 for x64-based Systems 4103731 (Security Update) Important Security Feature Bypass Yes

Patches

7 patches
Article Type Restart
4103716 Security Update Yes
4103723 Security Update Yes
4103731 Security Update Yes
4103727 Security Update Yes
4103721 Security Update Yes
4095876 Monthly Rollup Yes
4096417 Monthly Rollup Yes

Known Exploits

Acknowledgments

James Forshaw of Google Project Zero