Writeups

Simple web challenge about prototype pollution in python. It was part of the Codegate quals for juniors of 2024 (I made the writeup only because it was required to move to the finals).

Heap challenge from the Codegate quals for juniors of 2024. The vulnerability was an heap overflow that enabled an attacker to gain overlapping chunks, therefore arb read and write.

Simple AI challenge from the Codegate quals for juniors of 2024 (I made the writeup only because it was required to move to the finals).

Intresting python-compiled (pyc) reverse-engineering challenge from the Codegate quals for juniors of 2024.

This challenge comes from the 3rd round of openECSC 2024. The challenge was really really interesting: the exploitation tecnique involved a buffer overflow through a really short format string vulnerability.

This reverse-engineering challenge was part of LaCTF 2024. What we faced was a flag checker script written in both python and javascript. Sounds fun right?