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Vulnerability Details : CVE-2009-4419

Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to bypass the Trusted Execution Technology protection mechanism and gain privileges by modifying the MCHBAR register to point to an attacker-controlled region, which prevents the SENTER instruction from properly applying VT-d protection while an MLE is being loaded.
Publish Date : 2009-12-24 Last Update Date : 2009-12-28
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access Admin
Vulnerability Type(s) Execute CodeGain privilegesBypass a restriction or similar
CWE ID 16

- Products Affected By CVE-2009-4419

# Product Type Vendor Product Version Update Edition Language
1 Hardware Intel Gm45 Chipset Version Details Vulnerabilities
2 Hardware Intel Pm45 Express Chipset Version Details Vulnerabilities
3 Hardware Intel Q35 Chipset Version Details Vulnerabilities
4 Hardware Intel Q43 Express Chipset Version Details Vulnerabilities
5 Hardware Intel Q45 Chipset Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Intel Gm45 Chipset 1
Intel Pm45 Express Chipset 1
Intel Q35 Chipset 1
Intel Q43 Express Chipset 1
Intel Q45 Chipset 1

- References For CVE-2009-4419

http://secunia.com/advisories/37900
SECUNIA 37900
http://www.securityfocus.com/bid/37430
BID 37430 Intel BIOS SINIT Authenticated Code Module Local Privilege Escalation Vulnerability Release Date:2009-12-29
http://theinvisiblethings.blogspot.com/2009/12/another-txt-attack.html
http://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00021&languageid=en-fr CONFIRM
http://www.securitytracker.com/id?1023382
SECTRACK 1023382
http://xforce.iss.net/xforce/xfdb/54963
XF intel-chipset-sinit-priv-escalation(54963)
http://www.vupen.com/english/advisories/2009/3618
VUPEN ADV-2009-3618
http://osvdb.org/61248
OSVDB 61248
http://invisiblethingslab.com/resources/misc09/Another%20TXT%20Attack.pdf

- Metasploit Modules Related To CVE-2009-4419

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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