Hashed Shellcode

pwn x86/x64 FCSC 2024 solved on

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Description

Did you enjoy the Encrypted Shellcode challenge from FCSC 2021? Guess what? Here is a variant using a hash function!

Note : the Docker image base on the remote service is debian:bookworm-slim.

Files

Author

Cryptanalyse

Challenge Instructions

  1. First, download docker-compose.yml:
    curl https://hackropole.fr/challenges/fcsc2024-pwn-hashed-shellcode/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.

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