Super Factorizer

pwn x86/x64 FCSC 2024 solved on

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Description

I think crypto people are being a bit too clever. I can factor numbers too!

Note: the command to execute the binary server-side is: timeout -k 121 120 stdbuf -o0 /app/super-factorizer.

Files

  • docker-compose.yml
  • factor.sh
    786 B – aae82cebdbdb6f21f56e1892721a37b56a7ca065a079520e64b509361686966b
  • ld-2.36.so
    206.02 KiB – 6f2ec03aaa085171705cb11d56995a5aeae06293201463397447076a3fc89f7d
  • libc-2.36.so
    1.83 MiB – 318224fc988f40df2e4f0a02ab7b1679f7e61a58203c707d4ac858d5a6ffefcd
  • super-factorizer
    15.95 KiB – 5871bc17e363fa44e503da5ebc96d1d098171b6ef06a5761fd62f8143cffb607
  • super-factorizer.c
    2.03 KiB – 0b75fcccef2042b34673623e460837c88fad378b71cab9dbbdde02c3b17aef5c

Author

XeR

Challenge Instructions

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