Hacking the Cisco NAC - NACATTACK

At Black Hat Europe we met Dror-John Roecher and Michael Thumann who were able to hack the Cisco NAC solution by exploiting a fundamental design flaw (PDF). In this video they illustrate how they worked towards this discovery and give us some exploit details. It is not their intention to simply release a tool, they want the audience to understand how Cisco NAC works and why it is not as secure as Cisco wants us to believe.