Description
Between ACLs and LSMs, Unix permissions can no longer be trusted.
Here’s a program that tries to open a file of your choice to overcome this problem.
⚠️ Note FCSC 2024: The FCSC 2024 challenges are being migrated to Hackropole, but the solution submission form below is functional. You can play this challenge on the FCSC 2024 website while the Docker images are being migrated to Hackropole.
Files
-
file-checker
16.69 KiB – 53ef14680d0a90ce49223083c3d82727a9cf3660eb2e641835de610adf724d4a -
file-checker-src.tar.xz
845.49 KiB – 23cc8cfcb19bd9fb4c4829cafc035ec3c272cc9391d23561fc0a5c3de1f62a50 -
ld-2.39.so
231.07 KiB – 555beffc7b3d2184dfd26c5446e4cbc89d0cdca63fa954bb38d77e574aa6b199 -
libc-2.39.so
2.03 MiB – e4ed95c6c273277b9b8de5717ea272fef70cbe0e32053d6652e8a311b1f28f8d
Author
XeR
Flag
Submit your solution
You can submit your writeup for this challenge. Read the FAQ to learn how to proceed.
You need to be logged in to submit a writeup.
Writeups
There are no public solutions for this challenge yet, but you can submit yours after getting the flag.