BugTraq
RE: Dell BIOS DoS Dec 09 2003 07:06PM
David Brodbeck (DavidB mail interclean com) (3 replies)


> -----Original Message-----
> From: jon schatz [mailto:jon (at) divisionbyzero (dot) com [email concealed]]

> seriously, bios passwords are worthless. there are numerous
> ways to get
> around them. most motherboards have a jumper that you can set
> to reset
> your cmos / bios (probably misusing one of those terms) to
> the factory
> defaults. or you can just yank the cmos battery out.

Once upon a time, Sun Sparcstations stored the password in the NVRAM chip.
This chip had an internal battery. If you lost the password, that was it,
the only official fix was to replace the NVRAM chip. (At least it was
socketed.) Even that turned out to not be a serious problem, though; it
turned out if you removed the chip entirely, the system would boot to the
ROM monitor. Then you could put the chip back in "hot" and clear the
password.

There is no such thing as security from someone who has physical access to
the hardware.

[ reply ]
Re: Dell BIOS DoS Dec 09 2003 10:50PM
Jim Paris (jim jtan com)
Re: Dell BIOS DoS Dec 09 2003 08:02PM
Craig Paterson (craigp tippett com) (2 replies)
Re: Dell BIOS DoS Dec 10 2003 01:50AM
Eric Anderson (anderson cs uoregon edu)
RE: Dell BIOS DoS Dec 10 2003 01:25AM
Lyal Collins (lyalc ozemail com au)
Re: Dell BIOS DoS Dec 09 2003 07:43PM
Alexandros Papadopoulos (apapadop cmu edu)


 

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