[Misc] Compressor

Compressor is a binary, that maps a robot to a Linux file system. We can do diverse operations on that robot, to change the size of its body parts. Each operation is mapped to a Linux command and some take arguments. You might see where this is going: bash command injection

One of them gives an argument to cat: say no more!

This could also be solved with a zip GTFO command, but well, simpler is better.

We just need to guess where the flag.txt file is. After a couple of tries, ../../flag.txt does the trick.