full-disclosure - Re: DLL hijacking with Autorun on a USB drive

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Message-Id: <B3AB7AD3-FB66-4704-AF1A-301AF2E3C68E@doxpara.com>
Date: Thu, 26 Aug 2010 20:39:04 -0700
From: Dan Kaminsky <dan@...para.com>
To: Larry Seltzer <larry@...ryseltzer.com>
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Re: DLL hijacking with Autorun on a USB drive

On Aug 26, 2010, at 7:53 PM, Larry Seltzer <larry@...ryseltzer.com>  
wrote:

>> Instead of it executing "wab.exe (Windows Address Book) and open the
>> file test.vcf", one can directly get any .exe file open.
>
> Users have shown themselves very willing to open up test.vcf.exe.
>

Or for that matter, test, which is actually an exe with the icon of a  
vcf.  Thus the problem with all this chortling about foolish  
applications:  the desktop simply does not possess the security model  
of the browser or the email client.

There may very well be a legitimate boundary cross from this DLL  
stuff, but we haven't seen it yet. All the present stuff has the  
indelible mark of a false boundary, in that no fix can be imagined  
that actually closes the vector.

> LJS
>
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