Zarby Write

pwn x86/x64 FCSC 2024 solved on

star star

Description

You need to read the file flag.txt on the remote server.

Files

  • docker-compose.yml
  • zarby-write
    18.53 KiB – 3c5ffa55e31ea0a468383626e6852fb18a8adfa952f4ba8703a6506562b75b37
  • ld-2.37.so
    219.12 KiB – db61dfe5ac2fb5522cc111df698146d187b13cbfb73684f190f58217b8dbeec4
  • libc-2.37.so
    1.98 MiB – c3a14ee6eb14cdb81f6bbd0ab94ca138597db93d5c8e7bafb5609d2f94ee0068

Authors

Cryptanalyse
XeR

Challenge Instructions

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