MS11-012: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2479628)

This script is Copyright (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

The remote Windows kernel is affected by multiple vulnerabilities.

Description :

The remote host is running a version of the Windows kernel that is
affected by one or more of the following vulnerabilities :

- The Win32k.sys kernel-mode driver improperly validates
data supplied from user mode to kernel mode.
(CVE-2011-0086)

- The Win32k.sys kernel-mode driver insufficiently
validates data supplied from user mode to kernel mode.
(CVE-2011-0087)

- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a 'Window Class Pointer Confusion'
vulnerability. (CVE-2011-0088)

- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a 'Window Class Improper Pointer
Validation' vulnerability. (CVE-2011-0089)

- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a memory corruption vulnerability.
(CVE-2011-0090)

An attacker with local access to the affected system can exploit these
issues to execute arbitrary code in kernel mode and take complete
control of the affected system.

See also :

http://technet.microsoft.com/en-us/security/bulletin/ms11-012

Solution :

Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.3
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 51912 ()

Bugtraq ID: 46141
46147
46148
46149
46150

CVE ID: CVE-2011-0086
CVE-2011-0087
CVE-2011-0088
CVE-2011-0089
CVE-2011-0090