
From a Meeting Room to Domain Admin: An End-to-End Attack Chain on a Production Network
An end-to-end technical analysis of a real red team engagement conducted under written authorization: from anonymous access to a meeting room and copying the door booking tablet's MAC to bypass NAC (802.1X/MAB), through an unauthenticated MongoDB, a clear-text domain password, a Trend Micro Apex One pre-auth deserialization RCE (CVE-2025-49219), SYSTEM via PrintSpoofer, and Domain Admin through a shared local admin. The fall of an entire forest without a single 0-day, with blue-team defenses for each stage.
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