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Old 16th April, 2009, 10:38 AM
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I stumbled on this, Bios attacks

March 19, 2009, 11:41 AM
Researchers unveil persistent BIOS attack methods

Apply all of the browser, application and OS patches you want, your machine still can be completely and silently compromised at the lowest level--without the use of any vulnerability.
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Last edited by PorPorMe; 16th April, 2009 at 11:00 AM. Reason: Messed up!
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Old 16th April, 2009, 05:45 PM
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Note the requirements:

"in order to execute the attacks, you need either root privileges or physical access to the machine in question"

Unix and Linux, by design, don't have a user running with root or 'admininstrator' privileges under normal conditions, so the attack couldn't work unless someone logged in with root privs and then executed the code.

Windows users, on the other hand, are typically set up with 'Administrator' privileges, meaning that applicatons they are running typically have complete access to the system. While Microsoft have largely addressed this with Vista's 'User Access Control', many complain that the solution is little better than the problem. However, UAC DOES mean that this attack should be pretty difficult to pull off against a Vista or Windows 7 machine as well, at least remotely.

If the attacker has local access to the machine, then all bets are off.

As I see it, the real worry here is going to be trusting that machine you just bought. What happens if some disgruntled employee tampers with the BIOS image at Dell?
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Old 20th April, 2009, 12:01 PM
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Write protect the BIOS?
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