PT-2011-2079 · Microsoft · Windows Vista+5

Tarjei Mandt · Published 2011-02-08 · Updated 2023-12-07 · CVE-2011-0089

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Windows XP versions SP2 and SP3 Windows Server 2003 version SP2 Windows Vista versions SP1 and SP2 Windows Server 2008 versions Gold, SP2, and R2 Windows 7 (affected versions not specified)

Description The issue arises from improper validation of user-mode input by the win32k.sys driver in the kernel-mode drivers. This allows local users to gain privileges via a crafted application. An elevation of privilege vulnerability exists in the way that Windows kernel-mode drivers validate data supplied from user mode to kernel mode. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode and take complete control of an affected system.

Recommendations For Windows XP versions SP2 and SP3, update to a newer version that contains a fix for this issue. For Windows Server 2003 version SP2, update to a newer version that contains a fix for this issue. For Windows Vista versions SP1 and SP2, update to a newer version that contains a fix for this issue. For Windows Server 2008 versions Gold, SP2, and R2, update to a newer version that contains a fix for this issue. For Windows 7, update to a newer version that contains a fix for this issue. As a temporary workaround, consider restricting access to the win32k.sys driver until a patch is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-0089

Affected Products

Windows

Windows 7

Windows Server 2003

Windows Server 2008

Windows Vista

Windows Xp

References · 9

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0089 · Security Note
• http://secunia.com/advisories/43255 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-0089 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-012 · Vendor Advisory
• http://vupen.com/english/advisories/2011/0325 · Vendor Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11638 · Note
• http://securityfocus.com/bid/46149 · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-012 · Note
• http://osvdb.org/70817 · Note