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A comment on On Hacking MicroSD Cards.

Re:On Hacking MicroSD Cards by Spittie on Sunday December 29, 2013 @12:14PM (#6980248)
It's kinda scary how many microprocessor and different firmwares are needed/used in nowadays computer/hardware, and how each one of them add a new point of failure.

I was reading just today a similar article, but involving HDDs instead of Microsd cards (and even with a PoC): http://spritesmods.com/?art=hddhack

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Re:On Hacking MicroSD Cards by vidarh on Monday December 30, 2013 @06:35AM (#6984168)
I have a few servers at work with one Intel CPU on the motherboard, but two PPCs sitting on RAID controllers, and about a dozen ARM controllers on the harddrives (that article scared me - consider patching the drive controller to modify your boot process by transparently injecting stuff into your reads; means it is insufficient to just reformat if someone gets root). Plus whatever CPUs handles the IPMI cards (monitoring/KVM/reboot functionality)

There might very well be more micro-controllers in them that I don't know about. And these are quite run-of-the-mill rack mountable servers...

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