full-disclosure - Re: Firewire Attack on Windows Vista

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Message-ID: <0273B67044957C41BD71D12EBA2E00AE252F5C@becca.LarrySeltzer.local>
Date: Sun, 9 Mar 2008 22:14:08 -0400
From: "Larry Seltzer" <Larry@...ryseltzer.com>
To: "Stefan Kanthak" <stefan.kanthak@...go.de>,
	<full-disclosure@...ts.grok.org.uk>
Cc: bugtraq@...urityfocus.com
Subject: Re: Firewire Attack on Windows Vista

>>WRT the DMA access over FireWire it's but a bad response since it
doesn't get the point!
>>1. Drive encryption won't help against reading the memory.
>>2. The typical user authentication won't help, we're at hardware level
>>   here, and no OS needs to be involved.
>>3. The computer is up (and running; see above), no hibernate or sleep
>>   is involved here.

So on a freshly-booted system with drive encryption you can read
whatever you want on the disk? 

>>4. Group policies can be circumvented, even by a limited user.
>>
<http://blogs.technet.com/markrussinovich/archive/2005/12/12/circumventi
ng-group-policy-as-a-limited-user.aspx> 

What he says is that some group policies, not including system-wide
security settings, maybe circumvented, even by a limited user.

Larry Seltzer
eWEEK.com Security Center Editor
http://security.eweek.com/
http://blogs.pcmag.com/securitywatch/
Contributing Editor, PC Magazine
larry.seltzer@...fdavisenterprise.com

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