In part 10, we started exploring different protections and mitigations that we may find. In this part, we’ll continue this exercise, completing the ROP bypass of the DEP. Roping Step by Step Typically, there are tools that, in simple cases can automatically build a ROP. However, in difficult cases, these tools generally can’t fully build one, or can only partially do so, leaving one to complete by...

1. Introduction In this blog post, we will cover the analysis and exploitation of a simple heap buffer overflow found in SAPCAR a few weeks ago. SAP published security note #2441560 classifying the issue as "Potential Denial of Service". This post is our attempt to show

As part of my daily work as an Exploit Writer, I decided to take a look at CVE-2017-7308. It is a Linux Kernel vulnerability related to packet sockets. I will not go into details about the bug itself or its exploitation because there is an…

In the previous parts of this series, we went through some basic examples of exploitation and reversing. Now we’ll take a step forward, gradually adding different protections and mitigations that we will find. What are mitigations? Over the years, new generic defense methods have been added to new systems. While they don’t prevent exploitation, these mitigation techniques aim to make exploitation...