Description
BucketMaster allows you to store file and download them later, give it a try!
Note: this challenge has been designed for the “Compete With Team Europe” CTF, as part of ECSC Team France 2025 training.
Files
- docker-compose.yml
-
cte2025-web-bucketmaster.tar.xz
22.56 KiB – 50a1655c88d2631ed2ab9204786c15e73fabede3244f21e96c62e36e248ba825
Author

Challenge Instructions
- First, download docker-compose.yml:
curl https://hackropole.fr/challenges/cte2025-web-bucket-master/docker-compose.public.yml -o docker-compose.yml
- Launch the challenge by executing in the same folder:
docker compose up
- Access the challenge at http://localhost:8000/.
In case you encounter problems, please consult the FAQ.
Flag
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
There are no public solutions for this challenge yet, but you can submit yours after getting the flag.