CVE-2020-16886

PowerShellGet Module WDAC Security Feature Bypass Vulnerability

State
Published
Severity
5.3 Medium
Published
Oct 16, 2020
Updated
Aug 4, 2024
Reserved
Aug 4, 2020

Read the record on cve.org

Description

<p>A security feature bypass vulnerability exists in the PowerShellGet V2 module. An attacker who successfully exploited this vulnerability could bypass WDAC (Windows Defender Application Control) policy and execute arbitrary code on a policy locked-down machine.</p> <p>An attacker must have administrator privileges to create a configuration that includes installing PowerShellGet V2 module onto a machine from the PowerShell Gallery. The WDAC policy must be configured to allow the module to run. After this is done, PowerShell script can be injected and run fully trusted, allowing the attacker arbitrary code execution on the machine.</p> <p>The update addresses the vulnerability by changing how URLs are processed.</p>

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:Cmicrosoft

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
PowerShellGet 2.2.5Microsoft
  • 1.0.0 to before publicationAffected

References

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