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CVE-2020-0951

Windows Defender Application Control Security Feature Bypass Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 7.0.8, 7.1.5
None on Exploit-DB, Metasploit or GitHub

Summary

<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.</p> <p>To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.</p> <p>The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.</p>

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Microsoft Windows 10 Version 1803

    From 10.0.0

  • Microsoft Windows 10 Version 1809

    From 10.0.0

  • Microsoft Windows Server 2019

    From 10.0.0

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.0

  • Microsoft Windows 10 Version 1909

    From 10.0.0

  • Microsoft Windows Server, version 1909 (Server Core installation)

    From 10.0.0

  • Microsoft Windows 10 Version 1709 for 32-bit Systems

    From 10.0.0

  • Microsoft Windows 10 Version 1709

    From 10.0.0

  • Microsoft Windows 10 Version 1903 for 32-bit Systems

    From 10.0.0

  • Microsoft Windows 10 Version 1903 for x64-based Systems

    From 10.0.0

  • Microsoft Windows 10 Version 1903 for ARM64-based Systems

    From 10.0.0

  • Microsoft Windows Server, version 1903 (Server Core installation)

    From 10.0.0

  • Microsoft Windows 10 Version 2004

    From 10.0.0

  • Microsoft Windows Server version 2004

    From 10.0.0

  • Microsoft Windows 10 Version 1607

    From 10.0.0

  • Microsoft Windows Server 2016

    From 10.0.0

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.0

  • Microsoft PowerShell 7.0

    From 7.0.0 · fixed in 7.0.8

  • Microsoft PowerShell 7.1

    From 7.1.0 · fixed in 7.1.5

References 1

portal.msrc.microsoft.com