HackBlue

Labs / Active Directory, defender view

An old print server trusted for delegation

Decode userAccountControl values in a computer export and find the non-DC server with unconstrained delegation, which caches the Kerberos tickets of everyone who connects to it.

  • Terminal mission
  • Intermediate
  • 3 objectives
  • 0 of 3 solved

Briefing

A computer trusted for unconstrained delegation receives a copy of each connecting user’s TGT so it can act on their behalf anywhere. Domain controllers have it by design. On any other server, compromising that one machine yields tickets for every admin who touches it.

computers.ldf is an export of computer objects. uac-flags.txt lists the bits you need.

analyst@admin-ws

admin-ws · Active Directory, defender view

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