OOO archive --- DEF CON CTF [ login ]

dc2021q - threefactooorx web

by kaptain

This was a jeopardy challenge, part of dc2021q. (CTFtime)

This challenge was represented as 3️⃣
Points: 123
Was solved by: 51 teams

You may spawn the server:

On your laptop
  • Install docker
  • docker pull archiveooo/pub:threefactooorx (docker-saved download)
  • docker run -d --name threefactooorx archiveooo/pub:threefactooorx
  • Local IP: docker inspect threefactooorx -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
  • Connect to that IP:4017 — Remember to docker rm -f when done.
On your laptop (full source)
  • Install docker and pip install PyYAML coloredlogs
  • git clone
  • cd threefactooorx
  • ./spawner --log-level=INFO
  • Connect to the ip:port displayed
Hosted by OOO Right now we're asking players to login first.


This is the end of phishing. The Order of the Overflow is introducing the ultimate authentication factor, the most important one, the final one. To help the web transition to this new era of security, we are introducing a 3FA tool for testing your webpages completely isolated on our admin's browser.

WEB CHAL!!1!!!1

line_weight 3factooorx.crx


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


Spoilers ahead! Code for this challenge is publicly available.