Microsoft Windows Device Guard CVE-2019-0627 Local Security Bypass Vulnerability

Bugtraq ID:	106857
Class:	Design Error
CVE:	CVE-2019-0627
Remote:	No
Local:	Yes
Published:	Feb 12 2019 12:00AM
Updated:	Feb 21 2019 05:00AM
Credit:	Matt Graeber from SpecterOps.
Vulnerable:	Microsoft Windows Server 2019 0 Microsoft Windows Server 2016 0 Microsoft Windows Server 1803 0 Microsoft Windows Server 1709 0 Microsoft Windows 10 Version 1809 for x64-based Systems 0 Microsoft Windows 10 Version 1809 for ARM64-based Systems 0 Microsoft Windows 10 Version 1809 for 32-bit Systems 0 Microsoft Windows 10 Version 1803 for x64-based Systems 0 Microsoft Windows 10 Version 1803 for ARM64-based Systems 0 Microsoft Windows 10 Version 1803 for 32-bit Systems 0 Microsoft Windows 10 version 1709 for x64-based Systems 0 Microsoft Windows 10 Version 1709 for ARM64-based Systems 0 Microsoft Windows 10 version 1709 for 32-bit Systems 0 Microsoft Windows 10 version 1703 for x64-based Systems 0 Microsoft Windows 10 version 1703 for 32-bit Systems 0 Microsoft Windows 10 Version 1607 for x64-based Systems 0 Microsoft Windows 10 Version 1607 for 32-bit Systems 0 Microsoft Windows 10 for x64-based Systems 0 Microsoft Windows 10 for 32-bit Systems 0 Microsoft PowerShell Core 6.2 Microsoft PowerShell Core 6.1
Not Vulnerable:

Microsoft Windows Device Guard CVE-2019-0627 Local Security Bypass Vulnerability

Microsoft Windows is prone to a local security-bypass vulnerability.

An attacker can exploit this issue to bypass certain security restrictions and perform unauthorized actions. This may aid in further attacks.

Microsoft Windows Device Guard CVE-2019-0627 Local Security Bypass Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Microsoft Windows Device Guard CVE-2019-0627 Local Security Bypass Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Microsoft Windows Device Guard CVE-2019-0627 Local Security Bypass Vulnerability

References:

• Microsoft Security Advisory - Multiple UMCI bypass vulnerabilities #13 (PowerShell)
  
• Microsoft Homepage (Microsoft)
  
• CVE-2019-0627 | Windows Security Feature Bypass Vulnerability (Microsoft)