GPP / cPassword Attacks

Overview

Group policy preferences (GPP) allowed Administrators to create policies using embedded credentials. These credentials were encrypted and placed in a "cPassword". The encryption key was released by accident so the all the passwords are decryptable.

Hack the Box machine Querier
Hack the Box machine Querier

Check with PowerUp.ps1

Hack the Box machine Querier

GPP Attack via Metasploit

Mitigation

  • Be up to date on patching

  • Delete old GPP xml files inside the SYSVOL

Last updated

Was this helpful?