Partial Overwrite to get a format string
Leak php base adress
Ropchain in php
dup stdout/stdin to network FD
spawn /bin/sh
[Full writeup](https://fascinating-confusion.io/posts/2022/07/htb-business-ctf-22-superfast-writeup/)

Original writeup (https://fascinating-confusion.io/posts/2022/07/htb-business-ctf-22-superfast-writeup/).