[Full-disclosure] usb shorting to ground
- From: Todd Troxell <ttroxell@xxxxxxxxxx>
- Date: Thu, 27 Dec 2007 04:03:10 -0600
I discovered rather inadvertently that laptops do not enjoy having their USB
VCC shorted to GND one bit. It is a sure DoS, in fact if the machine has a
stupid power supply, it could result in permanent damage. It is kind of scary
for kiosk machines like the those ubiquitous Kodak photo centers.
I give you, the usb pwner. It could even hide inside a legitimate stick:
USB Pwner schematic
VCC ------------
D+ ---(nc) |
D ---(nc) |
GND ------------
--
Todd Troxell
http://rapidpacket.com/~xtat
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