In this article, i’ll explain and teach how to approach a pwn challenge when you can write many bytes to stack and no gadgets are available. Void from tamuctf was a classic and refreshing SROP binary-exploitation challenge, had fun solving it!

In this article, i’ll explain and teach how to approach these kind of challenges, and how to defeat Stack canaries, ASLR, NX and PIE. Warmup pwn was a nice warm-up binary exploitation challenge from foobar ctf 2022, had fun solving it!

At the end of February this year, TSJ CTF 2022 was released with many interesting challenges including Web and Binary Exploits, RE, Crypto and Misc! Our team had fun solving this challenge as it was interesting and unique.