![]() ![]() ![]() Okay, so it wants us to crash the service, no problem I already had a crashing input string for that service already from a previous challenge. Send your crash string as base64, followed by a newline I started by connecting to the challenge service: The first challenge, 334 cuts, didn’t offer much in terms of direction. For the first time in its history, DEFCON CTF is abandoning the attack-defense model. This year the finals will be based on DECREE so the winning CGC robot can ‘play’ against the human competitors. Several required CGC-style “Proof of Vulnerability” exploits. A full third of the challenges were DECREE-based. This year’s qualifying challenges were heavily focused on preparing competitors for the Cyber Grand Challenge (CGC). None of these are nearly as attractive as Binary Ninja.
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