full-disclosure - Re: usb shorting to ground

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Message-ID: <fl9q9l$nq2$1@ger.gmane.org>
Date: Mon, 31 Dec 2007 04:13:40 -0000
From: "Dave \"No, not that one\" Korn" <davek_throwaway@...mail.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: usb shorting to ground

Todd Troxell wrote:
> 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 ------------

  See also ...
http://www.hackerslab.org/images/geek/2005/may/etherkiller.jpg

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today.... 



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