Hacking MicroSD cards

You should read the latest on hacking MicroSD cards by Bunnie Studios (http://www.bunniestudios.com/blog/?p=3554).

Some points to consider:

  • Every card has a ARM microcontroller;
  • Flash is usually bad, but it doesn’t go to waste. a 16GB card with 80% bad flash can be sold as a 2GB one;
  • Remember number 1? It can allow arbitrary code execution.
MicroSD Card controller
MicroSD Card controller

 

 

Interested on reading more?

This is the whole write up – http://bunniefoo.com/bunnie/sdcard-30c3-pub.pdf – and here’s the whole video. Enjoy!