Security Feature Bypass in Microsoft PowerShellGet Module WDAC



Published: 2020-10-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-16886
CWE-ID CWE-254
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		PowerShellGet
Other software / Other software solutions

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security Features

EUVDB-ID: #VU47622

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-16886

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

This vulnerability allows a local user to bypass security rescritions feature.

The vulnerability exists due to a security feature bypass issue in the PowerShellGet V2 module. A local user can bypass WDAC (Windows Defender Application Control) policy and execute arbitrary code on a policy locked-down machine.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PowerShellGet: 2.2.5 - 2.2.5

CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16886


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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