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Windows Defender Application Control Security Feature Bypass Vulnerability - CVE-2020-0951

oval:org.cisecurity:def:8312

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. 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. The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.

Family:
windows
Status:
ACCEPTED
Platform(s):
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2016
  • Microsoft Windows 10
Class:
vulnerability
Reference(s):
  • CVE-2020-0951
  • MSRC-CVE-2020-0951
  • KB4577015
  • KB4577041
  • KB4577032
  • KB4570333
  • KB4574727
Product(s):