Permissions, Privileges, and Access Controls in Windows and Windows Server - CVE-2021-43226
Published: December 14, 2021 / Updated: October 19, 2022
Vulnerability identifier: #VU58931
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear
CVE-ID: CVE-2021-43226
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Common Log File System Driver, which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2021-43226
Install updates from vendor's website.