basic-pass-1 (150)

Problem

Your company is testing out a new login software, and being one of the CompSec experts, they want you to test it. They say that they have hidden a key somewhere in the program, and want you to look for it. Find it, and they might even consider giving you a pay raise...

They have told you that there is a four digit pin on the program to unlock it.

(Attachments: files/basic-pass-1-linux)

Solution

The flag can be found by running strings on the file and then grepping it for the flag.

$ strings basic-pass-1-linux | grep "bcactf{.*}"
Congrats! The key is bcactf{hey_its_a_password}

Original writeup (https://github.com/shawnduong/ctf-writeups/blob/master/2019-BCA/reversing/basic-pass-1.md).