Introduction This blog post is about a manually Reverse Engineered challenge we have written for this year NoHat24 security conference. The conference was a blast and we also did our best to contribute also with a worskhop on Linux Kernel Fuzzing. The challenge is a compiled C/C++ binary that implements a custom TCP protocol that […]
I don’t usually play CTFs, but this time i wanted to improve my radare2 and reversing skills.All crackme challanges can be found here.Levels from 1 to 3 are really entry-level, from 4 ahead start to be interesting. As the README says: “It’s reverse engineering, not cracking.”. That means we don’t have to patch the binary in […]