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

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Date: Tue, 31 Aug 2010 18:56:21 -0400
From: Valdis.Kletnieks@...edu
To: paul.szabo@...ney.edu.au
Cc: full-disclosure@...ts.grok.org.uk, cmorris@...odu.edu
Subject: Re: DLL hijacking with Autorun on a USB drive

On Wed, 01 Sep 2010 08:34:47 +1000, paul.szabo@...ney.edu.au said:
> Christian Sciberras <uuf6429@...il.com> wrote:
> 
> > Why do you say harmless? Because you know a text file can't do
> > anything at all.
> 
> Exactly. The victim is attempting to view a plain text file. Surely
> that can be done safely?

Only if your OS's security model understands the fact that executable code
and data belong in different security domains and thus different rules should
apply about what files to "trust" in each category.

(and yes, "interpreted data" like shell scripts and Java .class files and Flash
are the sort of neither-fish-nor-fowl that give security models headaches, so
don't bother flaming about that. ;)

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