CVE-2009-4419

Severity Score

7.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Intel Q35, GM45, PM45 Express, Q45, Y Q43 Express chipsets en the SINIT Authenticated Code Module (ACM), permite a usuarios locales superar el mecanismo de Trusted Execution Technology y obtener privilegios por modificación del registro MCHBAR para que apunte a una región controlada por el atacantes, lo que impide a la instrucción SENTER la adecuada protección desde applying VT-d, mientras un MLE es cargado.

*Credits: N/A

CVSS Scores

NISTv2 7.2

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-12-24 CVE Reserved
2009-12-24 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-16: Configuration

CAPEC

References (9)

URL	Tag	Source
http://invisiblethingslab.com/resources/misc09/Another%20TXT%20Attack.pdf	X_refsource_misc
http://osvdb.org/61248	Vdb Entry
http://theinvisiblethings.blogspot.com/2009/12/another-txt-attack.html	X_refsource_misc
http://www.securityfocus.com/bid/37430	Vdb Entry
http://www.securitytracker.com/id?1023382	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/54963	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://secunia.com/advisories/37900	2017-08-17
http://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00021&languageid=en-fr	2017-08-17
http://www.vupen.com/english/advisories/2009/3618	2017-08-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Intel Search vendor "Intel"		Gm45 Chipset Search vendor "Intel" for product "Gm45 Chipset"				*		-		Affected
Intel Search vendor "Intel"		Pm45 Express Chipset Search vendor "Intel" for product "Pm45 Express Chipset"				*		-		Affected
Intel Search vendor "Intel"		Q35 Chipset Search vendor "Intel" for product "Q35 Chipset"				*		-		Affected
Intel Search vendor "Intel"		Q43 Express Chipset Search vendor "Intel" for product "Q43 Express Chipset"				*		-		Affected
Intel Search vendor "Intel"		Q45 Chipset Search vendor "Intel" for product "Q45 Chipset"				*		-		Affected