Transport me

intro hardware communication bus FCSC 2026 solved on

Description

You just got a transport card, but there are only two travels left on it. You may interact directly with the card. To get the flag, you must be able to travel five times.

To interact with the card, connect to the remote service.

Files

Author

ElyKar

Challenge Instructions

  1. First, download docker-compose.yml:
    curl https://hackropole.fr/challenges/fcsc2026-hardware-transport-me/docker-compose.public.yml -o docker-compose.yml
  2. Launch the challenge by executing in the same folder:
    docker compose up
  3. Then, in another console, access the challenge with Netcat:
    nc localhost 4000
⚠️ 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

Share my success on Fediverse, Twitter, Linkedin, Facebook, or via email.

Submit your solution

You can submit your writeup for this challenge. Read the FAQ to learn how to proceed.

You need to be logged in to submit a writeup.

Writeups

I've been looking for a long time and I still can't find the flag!

You can vote for the solutions you prefer by using the on their respective pages.

DateAuthor Language Tags
2026-05-12
noahlgrd01
🇫🇷