Shrimp Saver

Description

Nothing like a little crustacean-based screensaver to brighten up your workstation!

Warning: when testing the challenge, browser addons may interfere with its proper functioning, it is recommended to disable them.

Files

docker-compose.yml
shrimp-saver.tar.xz
15.27 KiB – 588b2f57db474fd30b16cbd137937a925ce54d306ab29e19ff177b8820c04d2b

Author

BitK

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2026-web-shrimp-saver/docker-compose.public.yml -o docker-compose.yml
Launch the challenge by executing in the same folder:
docker compose up
Then, in another console, access the challenge with Netcat:
nc localhost 4000
Access the challenge at http://localhost:8000/.

⚠️ Important: You must solve the challenge by interacting with the Docker container through the exposed network port. Any other way is not considered valid.

In case you encounter problems, please consult the FAQ.

Flag

You don't have JavaScript actived. No problem! You can check your flag like this: echo -n 'PUT_THE_FLAG_HERE' | sha256sum # possible output: c854dd25a13e1bff1984967be5a2737860bff7e65162541b343c2cb0ed18a37a

Writeups

There are no public solutions for this challenge yet, but you can submit yours after getting the flag.