Full Disclosure mailing list archives

Re: BIOS Flash erases all prior passwords on Acer Aspire 5102WLMi


From: Valdis.Kletnieks () vt edu
Date: Tue, 05 Dec 2006 16:53:42 -0500

On Tue, 05 Dec 2006 22:37:36 +0100, Tyop? said:
On 12/5/06, richard cassidy <digital.richard () gmail com> wrote:
Flashing the bios on Acer Aspire 5102WLMi will erase all passwords
previously set.  This is obviously a bug!  All passwords should not be
wiped out with a bios flash (or at least they weren't on a Dell).  Or,
if they are, it should be stated up front so the passwords can be set
again once the bios is "updated'".

Flashing the bios will erase all data.

So the big question becomes - on an Acer, are the passwords stored in the
BIOS flash memory (in which case, having them evaporate on a BIOS flas is
reasonable), or are they on the NVRAM chip, in which case it's a bug/misfeature?

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