CVE-2020-0951

Medium

Description

<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>

SeverityMedium
CVSS6.7
Exploit probability—
ProductMicrosoft Powershell
PublishedSep 11, 2020
First seenSep 11, 2020

How to fix

Update
  • microsoft powershell7.0.8, 7.1.5 or later

Affected products

ProductAffected versionsFixed in
microsoft powershell7.0 ≤ v < 7.0.8, 7.1 ≤ v < 7.1.5, 7.0.87.0.8, 7.1.5
microsoft windows_101607, 1709, 1803, 1809, 1903, 1909, 2004—
microsoft windows_server_2016No range specified, 1903, 1909, 2004—
microsoft windows_server_2019No range specified—

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