OOO archive --- DEF CON CTF [ login ]

dc2021q - pooow-buddy reversing easy

by zardus

This was a jeopardy challenge, part of dc2021q.

This challenge was represented as 💥
Points: 122
Was solved by: 52 teams

You may spawn the server:

On your laptop
  • Install docker
  • docker pull archiveooo/pub:pooow-buddy (docker-saved download)
  • docker run -d --name pooow-buddy archiveooo/pub:pooow-buddy
  • Local IP: docker inspect pooow-buddy -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
  • Connect to that IP:5000 — Remember to docker rm -f when done.
Hosted by OOO Right now we're asking players to login first.


Tired of POWs? Here's a helpful program to solve them for you!

line_weight service


Hint 1pooow-buddy has a very trivial solution, and that solution is patched in pooow-pal. Do a binary diff between the two of them to get on the right track!

If you wish, you can contribute more.