Network
400GSMd
Author: Vlad Roskov (vos)
Welcome to Microsoft Security Assessment Lab.
As far as we are concerned, you are once again applying for an information security job at our vacancy.
Our policy has changed. We're not making our products secure anymore — we're now providing bugs to NSA.
They have run out of their CYCLONE Hx9's GSM station emulators and had to switch to using real base stations for now.

As your test assignment, you are to take over the base station at
77.220.186.142:40000

Debug console: gsmd.sh (http://hackyou.ctf.su/files/gsmd.sh)