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Posts
Unlocking the Motorola Bootloader
Attacking the iOS Kernel: A Look at 'evasi0n'
Re-visiting the Exynos Memory Mapping Bug
Unlocking the Motorola Bootloader
posted by Dan Rosenberg @ 4/08/2013 11:29:00 AM  

I recently spent some time dissecting the bootloader used on Motorola's latest Android devices, the Atrix HD, Razr HD, and Razr M. The consumer editions of these devices ship with a locked bootloader, which prevents booting kernel and system images not signed by Motorola or a carrier. In this blog post, I will present my findings, which include details of how to exploit a vulnerability in the Motorola TrustZone kernel to permanently unlock the bootloaders on these phones.

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Attacking the iOS Kernel: A Look at 'evasi0n'
posted by Tarjei Mandt @ 3/12/2013 10:56:00 AM  


Hi, Tarjei here. I was recently invited to speak at the Norwegian Information Security Laboratory at Gjovik University College in Norway, and decided to use the opportunity to elaborate on the recent blog post regarding the evasi0n kernel exploit. Specifically, the talk will briefly summarize the exploit mitigations introduced in iOS 6.x, after which we'll detail the kernel vulnerability and the specific attack techniques leveraged by evasi0n. The talk will be held at noon (CET) on March 22nd and will also be streamed live online.

For more details and information on how to register, please go to nislab.no/nislecture.
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Re-visiting the Exynos Memory Mapping Bug
posted by Dan Rosenberg @ 2/14/2013 08:29:00 AM  

On December 15, 2012, a member of the XDA Developer Forums going by the handle "alephzain" published a vulnerability affecting all Android devices using the Samsung Exynos chipset and running Android 4.0 (Ice Cream Sandwich) or greater. Affected devices include the extremely popular international variant of the Galaxy S3 (the North American version is not affected because it uses a Qualcomm chipset instead), and Exynos variants of the Galaxy S2, Galaxy Note, Galaxy Note 2, and Galaxy Tab.

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