The Art of Software Security Assessment: Identifying and Preventing Software Vulnerabilities (Volume 1 of 2)
by
Mark Dowd, John McDonald, Justin Schuh
ISBN: 0321444426
View on Amazon
We may earn a commission from purchases made through links on this page.
http://www.amazon.com/The-Software-Security-Assessment-Vulne...
Beyond that add in a bit of system administration knowledge e.g. in-depth knowledge of operating systems and networking, and you have everything you need to break many many systems!