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Rewterz Threat Advisory –Microsoft Windows Vulnerable to Privilege Escalation

Severity

High

Analysis Summary

Windows 10 and 11 are vulnerable to local EoP (elevation of privilege) vulnerability as users with low privileges are able to access sensitive registry database files. With these low file permissions, a threat actor with limited privileges on a device can extract the NTLM hashed passwords for all accounts on a device and use those hashes in pass-the-hash attacks to gain elevated privileges.

Impact

  • Privilege Escalation

Affected Vendors

Microsoft

Affected Products

  • Microsoft Windows 10
  • Microsoft Windows 11

Remediation

  • Ensure detection of access to C:\Windows\System32\config\SAM in command-line
  • Ensure detection of command icacis C:\Windows\System32\config\SAM

Visit the vendor website to stay updated on patches, affected products, and workarounds at https://msrc.microsoft.com/update-guide/vulnerability