Long Prime Shellcode

Description

After Encrypted Shellcode and Hashed Shellcode, why not play with a large prime number? :-)

This challenge exists in a more difficult version: Small Prime Shellcode

Files

docker-compose.yml
long-prime-shellcode
16.13 KiB – 50f31a977f647757260a095cf68a8c5e4bf6c089caa0a444b80ca0cdc39cf2df

Author

Cryptanalyse

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2025-pwn-long-prime-shellcode/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

⚠️ 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

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Writeups

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Date	Author	Language	Tags
2025-04-29	mk_4362	🇫🇷