This challenge is a reverse / exploit composed of 5 binaries (ELF 64 bits).

[https://gist.github.com/masthoon/a5bfa12503d4bb4d357de351a4c60198](https://gist.github.com/masthoon/a5bfa12503d4bb4d357de351a4c60198)

Original writeup (https://gist.github.com/masthoon/a5bfa12503d4bb4d357de351a4c60198).