OOO archive --- DEF CON CTF [ login ]

dc2021q - nooopster reversing pwn easy

by author1, author2

This was a jeopardy challenge, part of dc2021q.

This challenge was represented as 🎧
Points: 115
Was solved by: 74 teams
PCAPs: download

You may spawn the server:

On your laptop
  • Install docker
  • docker pull archiveooo/pub:nooopster (docker-saved download)
  • docker run -d --name nooopster archiveooo/pub:nooopster
  • Local IP: docker inspect nooopster -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
  • Connect to that IP:1999 — Remember to docker rm -f when done.
On your laptop (full source)
  • Install docker and pip install PyYAML coloredlogs
  • git clone
  • cd nooopster
  • ./spawner --log-level=INFO
  • Connect to the ip:port displayed
Hosted by OOO Right now we're asking players to login first.


Sharing files like its 1999. Connect to my network with OpenVPN.

line_weight nooopster.ovpn line_weight openvpn.shared.key


None yet :(
If you wish, you can contribute some.


Spoilers ahead! Code for this challenge is publicly available.