poniedziałek, 14 października 2019

PicoCTF 2014 - execute

This time I tried to execute (a challenge from PicoCTF 2014). Below you will find quick details. Here we go...
We will start here:

As you can see there is a read() function ;> Let's try to read something (...just like before during other cases when we saw read() ;) ):


Compiled program is started in gdb. We can continue:

Great, overflow is possible. I used small shellcode created by Jonathan Salwan (thanks!).

Now we should be here:


See you next time! ;)

Cheers




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