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@NeffIsBack NeffIsBack commented Oct 21, 2025

With the hack.lu CTF this year and therefore a swedish AD environment it was reported that Kerberos authentication does not work with special chars (e.g. öäü) that are present in some localized environments: Pennyw0rth/NetExec#963

The problem is that kerberos uses utf-8 encoding for Kerberos Strings. However, as of now both minikerberos as well as impacket use latin1 as its encoding, resulting in failed authentication with users that contain special chars.
See:

Before and after:
image

Fixed and used in NetExec:
image

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