Attacking Intel TXT via SINIT code execution hijacking

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Posted December 6, 2011

Attacking Intel TXT via SINIT code execution hijacking

Rafal Wojtczuk

Joanna Rutkowska

November 2011

Abstract

We present a software attack against Intel® TXT that exploits an implementation problem within a so

called SINIT module. The attack allows to fully bypass Intel TXT, Intel Launch Control Policy (LCP),

and additionally also provides yet-another-way to compromise SMM code on the platform.

Download:

http://www.invisiblethingslab.com/resources/2011/Attacking_Intel_TXT_via_SINIT_hijacking.pdf

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