During Black Hat 2006, it was shown how common Web browser attacks could be leveraged bypass perimeter firewalls and "Hack Intranet Websites from the Outside." In the years since, the fundamental problems were never addressed and the Intranet remains wide open, probably because the attack techniques described had important limitations. These limitations prevented mass scale and persistent compromise of network connected devices, which include but are not limited to home broadband routers. Now in 2012, with the help of new research and next-generation technologies like HTML5, browser-based Intranet attacks have overcome many of the old limitations and improved to a new degree of scary.
This presentation will cover state-of-the-art Web browser blended threats launched with JavaScript, using zero to minimal user interaction and complete every step of the exploit attack cycle. Starting with enumeration and discovery, escalating the attack further upstream and into embedded network devices, and ultimately mass-scale permanent compromise.
Phil Purviance is an Application Security Consultant for AppSec Consulting where he researches application security vulnerabilities and performs penetration testing. Phil's body of work includes the discovery and proof-of-concept exploitations of critical security vulnerabilities, design flaws, and system weaknesses in hundreds of custom web sites and web application frameworks. Purviance also consults with clients and recommends helpful countermeasures that are useful to mitigate serious security vulnerabilities. Phil's recent exploit talks include the security of HTML5, and the revealing of cross-site scripting vulnerabilities in Skype for iOS. Phil's contributions to the security community have earned him a placement into both the Google and Facebook Security Hall of Fame.
Joshua Brashars is a senior penetration tester at AppSec Consulting. He specializes in network, application, and the mobile security testing. In his spare time, he enjoys playing around with old telephone systems. Joshua has presented at several industry-recognized conferences and has contributed to several books by Syngress Publishing.