CVE-2021-36934 — Microsoft Windows SAM Local Privilege Escalation Vulnerability

provenance: imported · CVE: CVE-2021-36934

CVE-2021-36934: Microsoft Windows SAM Local Privilege Escalation Vulnerability

CISA Known Exploited Vulnerability (KEV)


Vendor / project	Microsoft
Product	Windows
Date added	2022-02-10
Due date	2022-02-24
Ransomware campaign use	Unknown

Description

If a Volume Shadow Copy (VSS) shadow copy of the system drive is available, users can read the SAM file which would allow any user to escalate privileges to SYSTEM level.

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-36934

References

NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36934
KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog