Revenge of Pwn

How This Challenge Work

exploit.py is able to exploit chal/vuln.

exploit.py --- pwn --->   chal/vuln
                       127.0.0.1:1337

Now you have the chance to replace the binary listening on 1337 port, and you need to pwn the script who is pwning your binary!

exploit.py --- (will try to) pwn --->  <your uploaded file>
    ^                                     127.0.0.1:1337
    |
    |
you need to pwn this

The flag is located at /home/deploy/flag, which is readable by exploit.py.