Luis Miras(Independent researcher)

The Baseband Playground

Baseband processors control access to the radio hardware on cell phones. There has been published security research and presentations on remotely attacking baseband processors. This talk will take a different approach and focus on code injection into the baseband from the application processor. This is the same method that many unlocks (ultrasn0w) use to bypass carrier restrictions. Interestingly, these unlocks (exploits) can also be used to load your own code onto the baseband. This enables the patching of existing GSM code and other phone functionality :) This talk will cover baseband architecture, setting up a development environment, injecting custom code into the baseband using a variety of exploits, and interesting areas for modification. The case study for the talk will be an iPhone baseband running the Nucleus RTOS, but the concepts will be applicable to other basebands and OS.

Sobre Luis Miras

Luis Miras is an independent security researcher. He has worked for both security product vendors and leading consulting firms. His interests include mobile security, vulnerability research, binary analysis, and hardware/software reverse engineering. In the past he has worked in digital design, and embedded programming. He has presented at CanSecWest, Black Hat, CCC Congress, ekoparty, XCon, REcon, Defcon, and other conferences world-wide.

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