Full Disclosure mailing list archives
Re: Firewire Attack on Windows Vista
From: Tim <tim-security () sentinelchicken org>
Date: Thu, 6 Mar 2008 12:44:19 -0800
Is it not possible for Windows (or any OS) to open up DMA for a device only to a certain range? If not, what options are available?
I have various forms of RSI and don't feel like typing it again: On Thu, Mar 06, 2008 at 12:00:09PM -0800, Tim wrote:
[...] Of course this is not an optimal fix. The drivers should just automatically restrict the DMA accesses in real time to a range that is safe but still permits devices to use it. (Presumably to buffers allocated specifically for I/O.) Not sure if some devices would still have problems with this, but I think this is the intended operation of ieee1394 based on the specs and I'd imagine it would work on a greater number of devices than having it disabled completely. [...]
So yes, this is possible. AFAIK, driver writers on all sides have just been lazy. At least with free OSes they have a lame hack to protect you. tim _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Firewire Attack on Windows Vista Bernhard Mueller (Mar 05)
- Re: Firewire Attack on Windows Vista Thierry Zoller (Mar 05)
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- Re: Firewire Attack on Windows Vista TheM . (Mar 05)
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- Re: Firewire Attack on Windows Vista Peter Watkins (Mar 05)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 06)
- Re: Firewire Attack on Windows Vista Tim (Mar 06)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 06)
- Re: Firewire Attack on Windows Vista Tim (Mar 06)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 06)
- Re: Firewire Attack on Windows Vista Tim (Mar 06)
- Re: Firewire Attack on Windows Vista Peter Watkins (Mar 05)
- Message not available
- Re: Firewire Attack on Windows Vista Tim (Mar 06)
- Re: Firewire Attack on Windows Vista Thor (Hammer of God) (Mar 07)
- Re: Firewire Attack on Windows Vista Thor (Hammer of God) (Mar 07)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 07)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 07)
- Re: Firewire Attack on Windows Vista Thor (Hammer of God) (Mar 07)
- Re: Firewire Attack on Windows Vista Bryon Roche (Mar 07)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 08)
- Re: Firewire Attack on Windows Vista Tim (Mar 08)
- Re: Firewire Attack on Windows Vista Larry Seltzer (Mar 08)