weekly challenges 2021 - week1

Beginner friendly weekly challenges - binary exploitation basics

We encourage you to post writeups.
Here is a guide for the same.

300

Challenge 3

pwn

This is an actual exploitation challenge where you are going to exploit some vulnerability. Use a decompiler like IDA(https://hex-rays.com/ida-free/) or Ghidra(https://ghidra-sre.org/) to get a peek at the pseudo-code of the challenge. It should speed up your analysis. You have to somehow modify a variable such that if-condition passes and the flag is printed to the screen.

http://52.172.254.231:25000/static/chall3/chall3

nc 52.172.254.231 17420