picoCTF2018 - SpyFi

Text

James Brahm, James Bond's less-franchised cousin, has left his secure communication with HQ running, but we couldn't find a way to steal his agent identification code. Can you? Conect with nc 2018shell.picoctf.com 30399. Source.

Port may be different.

Hints

What mode is being used?

Solution

TODO (see script comments)

Usage

Simply run SpyFi_attack.py as a python script and insert port to which to connect:

$ python SpyFi_attack.py
picoCTF port: 30399

PARTIAL FLAG:  picoCTF{


TEST INPUT:  xxxxxxxxxxxde is: picoCTF{0
TEST INPUT:  xxxxxxxxxxxde is: picoCTF{1
TEST INPUT:  xxxxxxxxxxxde is: picoCTF{2
...
...
TEST INPUT:  xxxxxxxxxxx_c00l3$t_4884476
TEST INPUT:  xxxxxxxxxxx_c00l3$t_4884477

PARTIAL FLAG:  picoCTF{@g3nt6_1$_th3_c00l3$t_4884477


FLAG:  picoCTF{@g3nt6_1$_th3_c00l3$t_4884477}