Querier was a really fun Windows box that involved some skills around MSSQL, Responder, and some classic Windows priv esc techniques.
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Recently the Qualys Research Team did an amazing job discovering a Heap overflow vulnerability in Sudo. In the next sections, we will analyze the bug and we will write an exploit to gain root privileges on Debain 10.
Rope2 by R4J has been my favorite box on HackTheBox by far. It wasn’t really related to pentesting, but was an immersive exploit dev experience