ID CVE-2020-16886
Summary <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>
References
Vulnerable Configurations
  • cpe:2.3:a:microsoft:powershellget:2.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:powershellget:2.2.5:*:*:*:*:*:*:*
CVSS
Base: 7.2 (as of 31-12-2023 - 20:15)
Impact:
Exploitability:
CWE NVD-CWE-noinfo
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
cvss-vector via4 AV:L/AC:L/Au:N/C:C/I:C/A:C
refmap via4
misc https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16886
Last major update 31-12-2023 - 20:15
Published 16-10-2020 - 23:15
Last modified 31-12-2023 - 20:15
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