Protostart CTF - heap2 - walkthrough

As a quick writeup - this time we will take a look for a heap2 challenge from Protostar CTF (you can find the game here). Let's go...

Below few screens with details from gdb. First run:

 

Checking with ltrace:

Trying with service:

"Second"start:

Checking chunks:

Checking auth 'value' again:

Next:

And next:

So looks like it's done.

See you next time.

Cheers