Understanding Integer Overflows - CrikeyCon 2017, Impossible Math Writeup
Category: Coding Points: 400 Solves: 7 Description: ctf.crikeycon.com:43981 Enumeration Before doing anything else on the host since we were provided with an unual port and address I attempted to ncat to it, receiving the following:
Identifying the core problem Since the math is impossible there’s likely a trick here. With that in mind I figure we need to overload an operator (integer overflow) and try passing a large number as input:
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