| CTFtime: | https://ctftime.org/event/2502/ |
Bash++
Challenge What if you had a shell where you could only do maths? We are given some c++ source code, the compiled binary and the challenge setup Approach This is a c++ pwn challenge, and the author was so kind as to give as the source code : this usually means we’ll have to delve into some heap shenanigans (note ASLR, PIE and NX are all enabled =O ). This seems to present itself as a simple interactive shell, that allows up to save variables and do some basic arithmetic. ...