As seen today on the Full Disclosure mailing list:
{BIMPIN ADVISORY}[PLATFORM]
I TESTED THIS ON A WINDOWS XP BOX. IT WAS PATCHED.<DISCOVERY>
aLMOST EVERY COMPUTER HAS A SWITCH ON IT SOMEWHERE. SOMETIMES THEY ARE
VIZIBLE, SOMETIMES THEYR HIDDEN. IF A HAQQER WERE TO TAMPER OR MOVE THIS
SWITCH, IT COULD CAUSE A MASSIVE DOS ON THAT MACHINE.{THE EXPLOYT}
FIND AN UNATTENDED PC THAT IS TURNED ON. FIND THE "SWITCH"
MOVE THE SWITCH UP AND DOWN OR IN AND OUT. IF YOU DO IT RIGHT, THE MACHINE
WILL DOS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1%%%%%
Sad to hear that even Microsoft can't patch this big gaping hole... I tested this on MacOS and Linux and it appears that it is exploitable from those operating systems as well :p