Shellfish Say

Description

Finally, the new version of Shrimp Say has been released! Discover Shellfish Say!

To ask the bot to say something, simply connect using: nc localhost 4000.

Files

docker-compose.yml
shellfish-say.tar.xz
42.78 KiB – ea9d088d5ce6dccaf905165e4298c1cfacb4d083f472b98b1b872f0b6b2d962d

Author

Worty

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2026-web-shellfish-say/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: 07b5d0852a7ccd305d57a955569895ffd5ec8eafbb06e014d07b141f12e6d0a2

Writeups

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