Competing in BuckeyeCTF

Summary

I competed in the 48 hour Buckeye CTF over the 2021-10-22 weekend and came in first place in the OSU division. This was my first CTF competition. I was on a team with two other members of the cybersecurity club. I mostly worked on the challenges in the reverse engineering category. Out of all participants, I solved Battelle's headless_horseman challenge first, and I enjoyed that challenge the most. I think I will compete in more CTFs.

Lessons Learned

  • More experience with reverse engineering in Ghidra
  • Using GDB for reverse engineering
  • Using the Emacs Grand Unified Debugger interface
  • Debugging programs running inside of QEMU