dc2019q - speedrun-006 shellcoding speedrun

by adamd

This was a speedrun challenge, part of dc2019q. (CTFtime)

Points: 5
Was solved by: 66 teams

You may spawn the server:

On your laptop

Install docker
docker pull archiveooo/pub:speedrun-006 (docker-saved download)
docker run -d --name speedrun-006 archiveooo/pub:speedrun-006
Local IP: docker inspect speedrun-006 -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
Connect to that IP:31337 — Remember to docker rm -f when done.

On your laptop (full source)

Install docker and pip install PyYAML coloredlogs
git clone https://github.com/o-o-overflow/dc2019q-speedrun-006
cd speedrun-006
./spawner --log-level=INFO
Connect to the ip:port displayed

Hosted by OOO

Right now we're asking players to login first.

Description

directions_run

This is a speedrun challenge! [ Game leaderboard ]

The first team to solve it got 25 points, with points decreasing in value to 5 points awarded to all solvers below the fourth place. 300, 200, and 100 points were awarded to the lowest total solving time across all speedruns (full rules).

Speedruns were released every two hours during the competition, and got progressively harder. They were a way to evaluate how quickly teams could set themselves up and rewarded automation and quick thinking. We don't record times on the archive and always assign 5 points (the challenges were released a long time ago, after all :D), but they still serve as a simple measure of how fast you can be compared to skilled players.

Fast & Furious 6

line_weight speedrun-006

Hints

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

Source

Spoilers ahead! Code for this challenge is publicly available.