Billy Lau and his colleague Yeongjin Jang move on with the description of their research, dwelling on the details of Mactans compromising iDevices. In particular, the hardware architecture and other essential properties of the tricky charger are provided, and the algorithm of the attack workflow gets revealed. The process of pairing with the target device and some probable issues that may occur along the way are covered herein as well.
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Researchers from the Georgia Institute of Technology deliver a remarkable presentation at the Black Hat conference, highlighting iOS security essentials and an unprecedented proof-of-concept attack that they came up with. In particular, the study provides a non-trivial perspective of how the so-called ‘walled garden model’ is implemented, with its strong points as well as shortcomings. Importantly, the Mactans concept is also overviewed in this presentation, describing the process of attacking iDevices via an especially designed charger.
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In the final part of the Hack in the Box presentation, experts from Azimuth Security Mark Dowd and Tarjei Mandt analyze heap overflows as a component of iOS 6 kernel attack vectors. In particular, they dissect and exemplify a number of primitives, namely adjacent disclosure, arbitrary memory disclosure, extended overflow, and a mix of these techniques. The section also encompasses main takeaways relating to iOS 6 security.
Having highlighted the protections and data leaking mitigations hard-coded into iOS 6, Mark Dowd and Tarjei Mandt are now focusing primarily on the attack vectors. More specifically, the attacks being overviewed are beyond the standard syscall table overwrites, kernel code patching, etc. The researchers describe kernel attacks in different scenarios which allow defeating ASLR.