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Any USB Peripheral Is Now a Potential Threat

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Dangerous USB Slippers

A group of Canadian hackers have identified and learned to exploit a flaw that allows them to turn any USB peripheral into a sort of hardware trojan horse. Plug-and-play USB devices follow a consistent rule, the device identifies itself to the PC. The computer, by rule, will believe that a UB device is whatever it claims to be; if a keyboard says it's a camera, the PC will register it as a camera.

This trust-by-default design makes it easy for a modified peripheral to collect or transmit data without raising any alarms. As a proof of concept, the Royal Military College of Canada's John Clark, Sylvain Leblanc and Scott Knight modified the circuitry of a keyboard, empowering it to steal data from the host hard drive and then transmit it via Morse code (using a blinking LED).

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SwitchedAny USB Peripheral Is Now a Potential Threat originally appeared on Switched on Sun, 04 Jul 2010 11:00:00 EST. Please see our terms for use of feeds.

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