Tik Tak Tok

pwn x86/x64 FCSC 2020 solved on

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Description

You need to read the content of the file flag on the remote service.

Note: This challenge has been made for the finale of FCSC 2020.

Files

  • docker-compose.yml
  • tiktaktok.c
    4.28 KiB – b01055fe518c0a56677cca8b53e6e07000d2cd861cbe39ff85c25e8b552c51cf
  • tiktaktok
    16.71 KiB – 2be60fea72fdf1ae737e77bd5f69aa5fb6cf4c7912cc346948e2d03e566f3580
  • libc-2.28.so
    1.74 MiB – dedb887a5c49294ecd850d86728a0744c0e7ea780be8de2d4fc89f6948386937

Author

Cryptanalyse

Challenge Instructions

  1. First, download docker-compose.yml:
    curl https://hackropole.fr/challenges/fcsc2020-pwn-tik-tak-tok/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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Writeups

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

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DateAuthor Language Tags Vote
2024-03-07
azerloc
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