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Vulnerability Details : CVE-2006-6730

OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2.
Publish Date : 2006-12-26 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
6.6
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 Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2006-6730

# Product Type Vendor Product Version Update Edition Language
1 OS Netbsd Netbsd 2.0.4 Version Details Vulnerabilities
2 OS Openbsd Openbsd Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Netbsd Netbsd 1
Openbsd Openbsd 1

- References For CVE-2006-6730

http://www.cansecwest.com/slides06/csw06-duflot.ppt
http://lists.freedesktop.org/archives/xorg/2004-June/000927.html
MLIST [Xorg] 20040613 DRI merging
http://www.securityfocus.com/archive/1/454510/100/0/threaded
BUGTRAQ 20061215 Re: The (in)security of Xorg and DRI
http://www.securityfocus.com/archive/1/454706/100/0/threaded
BUGTRAQ 20061218 Re: The (in)security of Xorg and DRI
http://www.securityfocus.com/archive/1/archive/1/454379/100/0/threaded
BUGTRAQ 20061214 The (in)security of Xorg and DRI
http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf

- Metasploit Modules Related To CVE-2006-6730

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


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