Cameron Wright · Jan 6, 2012 at 11:00 am

Patch this Barnes and Noble! Nook Tablet hardware protection compromised

 

The Nook Tablet, launched with a hardware security hole

The device was released  allowing ADB to be accessed.  Barnes and Nobel quickly patched this hole. o XDA Recognized Developer AdamOutler released a reversion package imediately, and XDA Senior Member Dean Gibson worked on restoring this ability in 1.4.1.  AdamOutler then released a Nook Tablet HackPack, discovered a method to boot the Nook Tablet securely from SDCard and showed us how to set up UART with the assistance of XDA Senior Member Pokey9000.

Finally, pulling together all the techniques learned, member hkvc was able to totally bypass the device’s security at the bootloader.  He calls it NOP Based Security Bypass.  hkvc’s technique loads a custom kernel into memory, modifies security registers, then executes a custom kernel.   This requires a hardware modification and may lead to the first mobile device with a modchip.   However, using the power of booting from SDCard this will be an unpatchable security exploit and allow custom ROMs like CyanogenMod and Ice Cream Sandwich to run on the Nook Tablet eventually.

Score one more hack for XDA-Developers.

Sources:
Reversion Package: http://forum.xda-developers.com/showthread.php?t=1402190
1.4.1 restored: http://forum.xda-developers.com/showthread.php?t=1413734
Booting nook tablet from SDCard: http://forum.xda-developers.com/report.php?p=20888654
Nook Tablet Hack Pack: http://forum.xda-developers.com/showthread.php?t=1411379
Setting up uart: http://forum.xda-developers.com/showthread.php?t=1423009
NOP Based Security Bypass: http://forum.xda-developers.com/showthread.php?t=1425044


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Cameron Wright

Cameron Wright is an editor on XDA-Developers, the largest community for Android users. I'm like a Teddy bear, brother, gadget guru and garbage pail kid all rolled into one! Huge Google fanboy. "We judge ourselves by what we feel capable of doing, while others judge us by what we have already done." ~Henry Wadsworth Longfellow, Kavanagh, 1849 Editor in Chief - Nibletz Editor at Large - TheDroidGuy writer at XDA Developers My first Android phone didn't have an OS with a codename. I've made my rounds writing for AndroidFeens, AbsolutelyAndroid, thedroidguy, AndroidSPIN, Gadget University, and XDA Portal. I am a volunteer with the American Red Cross and I spent 9 months living in the Upper 9th Ward following Katrina. View Cameron Wright's posts and articles here.
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