HF 2021 - Call for Papers

Nathaniel Kirkland

Raised on a steady diet of video game modding, when Nathan found programming as a teenager, he fit right into it. Legend says he still keeps his coffee (and tear) stained 1980s edition of The C Programming Language by K&R stored in a box somewhere. A few borrowed Kevin Mitnick books later, he had a new interest, and began spending more and more time searching for buffer overflows and SQL injections. Many coffee fueled sleepless nights later, he had earned OSCP, and graduated highschool a few months later. After a few more years of working towards a math degree and trying fervently to teach himself cryptanalysis, he decided to head back to the types of fun hacking problems that were his real first love, and has worked at Security Innovation ever since.


House of Heap Exploitation

Heap exploitation is an incredibly powerful tool for a hacker. As exploit mitigations have made exploitation more difficult, modern exploit development has moved to the heap. However, heap exploitation is a subject that has evaded many people for years for one reason: they focus on the techniques instead of the allocator. By learning with an allocator first style, the techniques are easily understood and practical to use.

This workshop is for learning heap exploit development in GLibC Malloc, which is the deallocate allocator on most Linux distros. With this hands-on introduction into GLibC Malloc heap exploitation you will learn how the allocator functions, heap specific vulnerability classes and how to pwn with a variety of techniques. Whether you're an avid CTFer, trying to beat a pwnables challenge or exploiting 0-days, this course is good for adding another tool to the tools arsenal. After taking this course you will understand the GLibC Malloc allocator, be able to discover heap specific vulnerability classes and pwn the heap with a variety of techniques, with the capability to easily learn more.