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TITLE:
Intel Trusted Execution Technology SINIT Security Bypass

SECUNIA ADVISORY ID:
SA37900

VERIFY ADVISORY:
http://secunia.com/advisories/37900/

DESCRIPTION:
A vulnerability has been reported in multiple Intel products, which
can be exploited by malicious, local users to bypass certain security
restrictions and gain escalated privileges.

The vulnerability is caused due to a configuration error in the SINIT
Authenticated Code Module (ACM). This can be exploited to bypass
Trusted Execution Technology restrictions and gain escalated
privileges.

The vulnerability is reported in platforms using the Q35, GM45, PM45
Express, Q45, and Q43 Express chipsets.

SOLUTION:
Install updated SINIT modules.
http://sourceforge.net/projects/tboot/files/

Q35:
Install Q35_SINIT_18.BIN.

GM45 and PM45 Express:
Install GM45_GS45_PM45_SINIT_21.BIN.

Q45 and Q43 Express:
Install Q45_Q43_SINIT_18.BIN.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Alexander Tereshkin, Rafal Wojtczuk, and Joanna
Rutkowska from Invisible Things Lab.

ORIGINAL ADVISORY:
http://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00021&languageid=en-fr

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