Build Your Own ECSC Team

pwn heap FCSC 2019 solved on

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Description

We open our extraordinary application to manage the ECSC 2019 Team France! We are convinced that there is absolutely no security problem with it!

Note: This challenge has been made for the finale of FCSC 2019.

Files

  • docker-compose.yml
  • byot
    17.93 KiB – 256e623ed9f655858bfbe373d55bcce92b49a76953134e048f1b6a60e2ad63af
  • libc-2.24.so
    1.61 MiB – d37be6b076bed6b4031451c8495aca3f350273e90dd5b97721f6b167b88ce1ea
  • ld-2.24.so
    149.70 KiB – 242cba8e97a996c0c2195bee25121c52ee9fc908cd5cffb3c0ba720052f8e491

Author

ack

Challenge Instructions

  1. First, download docker-compose.yml:
    curl https://hackropole.fr/challenges/fcsc2019-pwn-build-your-own-team/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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