poniedziałek, 23 października 2017

środa, 11 października 2017

poniedziałek, 9 października 2017

Protostart CTF - heap1 - walkthrough

In our last challenge we were able to overwrite the pointer of winner(). Let's see if we can expoit heap1 available also in ProtostarCTF. Details below...


Protostart CTF - heap0 - walkthrough

During last few days I had a pleasure to learn a little bit more about heap exploitation in Linux. I decided that it will be a good moment to take a look for a ProtostarCTF. Below you will find few details about it...

czwartek, 28 września 2017

Privilege Escalation in ProFTPd 1.3.0

During last few days I was preparing to another CTF competition. As a warm-up I decided to do a(nother;)) quick autopsy, this time of an old bug found in Proftpd - described as CVE-2006-6563. Below you will find some results...