Improper access control in System.Management.Automation - CVE-2019-1167
Published: July 24, 2019 / Updated: July 24, 2019
Vulnerability identifier: #VU19320
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1167
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
System.Management.Automation
System.Management.Automation
Detailed vulnerability description
The vulnerability allows a local attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions in Windows Defender Application Control (WDAC). A local administrator can bypass WDAC enforcement, circumvent PowerShell Core Constrained Language Mode on the machine and access resources in an unintended way.
How to mitigate CVE-2019-1167
Install updates from vendor's website.