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

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Message-ID: <20100902203459.2F0C.0@paddy.troja.mff.cuni.cz>
Date: Thu, 2 Sep 2010 20:47:03 +0200 (CEST)
From: Pavel Kankovsky <peak@...o.troja.mff.cuni.cz>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: DLL hijacking with Autorun on a USB drive

On Tue, 31 Aug 2010 Valdis.Kletnieks@...edu wrote:

> 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.

If your OS's security model "understands" programs and data belong in
different security domains then every instruction of code on your computer
is trusted to enforce that policy. Your line of defence goes through every
program and any bug can breach it. The failure is inevitable. [1]

[1] P. A. Loscocco, S. D. Smalley, P. A. Muckelbauer, R. C. Taylor,
S. J. Turner and J. F. Farrell, "The Inevitability of Failure: The Flawed
Assumption of Security in Modern Computing Environments", In Proceedings
of the 21st National Information Systems Security Conference, 1998,
pp. 303--314 
<http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.117.5890>

-- 
Pavel Kankovsky aka Peak                          / Jeremiah 9:21        \
"For death is come up into our MS Windows(tm)..." \ 21st century edition /

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