Junglewise Threat Intelligence

CVE-2022-22047: Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability

CVE-2022-22047 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-07-12

Technologies: Microsoft Windows Server 2008, Microsoft Windows 8.1, Microsoft Windows Server 2016, Microsoft Windows, Microsoft Windows Server 2019, Microsoft Windows 11, Microsoft Windows Server 2022, Microsoft Windows 7, Microsoft Windows Server 2012, Microsoft Windows 10. Vendors: Microsoft.

Executive brief

A privilege escalation vulnerability exists in the Microsoft Windows Client Server Runtime Subsystem (CSRSS) due to an untrusted search path (CWE-426). An authenticated local attacker can exploit this to gain SYSTEM privileges on a target system.

Affected products

  • Microsoft Windows 10 1507, 1607, 1809, 20H2, 21H1, 21H2
  • Microsoft Windows 11 21H2
  • Microsoft Windows Server 2022 10.0.20348.825
  • Microsoft Windows Server 2019 10.0.17763.3165
  • Microsoft Windows Server 2016 10.0.14393.5246
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1 -
  • Microsoft Windows Server 2008 SP2, R2 SP1
  • Microsoft Windows Server 2012 R2

Timeline

  • 2022-07-12: disclosed
  • 2022-07-12: patched
  • 2022-07-12: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-07-12: exploited: Reported as exploited in the wild at time of publication.

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