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Preparing a Pull Request that introduces scripts that allow to exploit the Kerberos sAMAccountName spoofing attacks (CVE-2021-42278 + CVE-2021-42287).
This attack chain allows regular users to spoof domain controllers.
The requirement to this attack is to have an unpatched KDC and full control over a machine account (to be able to edit its
sAMAccountName
andservicePrincipalName
attributes). Full control over a machine account can be gained by creating it in the first place (e.g. by leveraging theMachineAccountQuota
domain-level attribute if it's greater than 0)References