Umbra Wiki cve cve/CVE-2021-36934
Back to wiki

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

provenance: imported · CVE: CVE-2021-36934 · CWE: CWE-1220

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

Weakness behind it

CISA records this vulnerability as an instance of CWE-1220. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.

References

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

See all 1,745 pages under Vulnerabilities (CVE) →