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Vulnerability Alert

Microsoft Windows Kernel Driver Use-After-Free Privilege Escalation Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:27362
Version:1
First Published:2012 November 13 13:29 GMT
Last Published:2012 November 13 18:29 GMT
Port: Not available
CVE:CVE-2012-2553
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:6.8 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.0
 
Version Summary:Microsoft Windows contains a vulnerability that could allow a local attacker to gain elevated privileges on a targeted system. Updates are available.
 
 
Description
Microsoft Windows contains a vulnerability that could allow a local attacker to gain elevated privileges on a targeted system.

The vulnerability exists because the affected software improperly handles objects in memory. A local attacker could exploit this vulnerability by running a crafted application. Successful exploitation could allow the attacker to execute arbitrary code in kernel mode, which could result in a complete system compromise.

Microsoft has confirmed the vulnerability in a security bulletin and released software updates.
 
Warning Indicators
The following Microsoft products are affected:
  • Windows XP SP3 and prior
  • Windows Server 2003 SP2 and prior
  • Windows Vista SP2 and prior
  • Windows Server 2008 for 32-bit Systems SP2 and prior
  • Windows 7 for 32-bit Systems SP1 and prior
 
IntelliShield Analysis
To exploit this vulnerability, the attacker must be able to log in locally to a targeted system. As a result, trusted users with limited privileges may use this type of vulnerability as part of an insider attack.

Microsoft has corrected this vulnerability by correcting the way Windows kernel-mode drivers handle objects in memory.

The Cisco Applied Intelligence team has created an Applied Mitigation Bulletin to address vulnerabilities that Microsoft disclosed in the November 2012 security bulletin release. This Cisco bulletin, which assists administrators in identifying or mitigating these vulnerabilities using Cisco devices, is available at the following link: Cisco Applied Mitigation Bulletin: Microsoft Security Bulletin Release for November 2012
 
Vendor Announcements
Microsoft has released a security bulletin at the following link: MS12-075
 
Impact
A local attacker could exploit this issue to gain elevated privileges on a targeted system. Successful exploitation could allow an attacker to execute arbitrary code in kernel mode, which could result in a complete system compromise.
 
Technical Information
The vulnerability exists because the affected software improperly handles objects in memory, resulting in a use-after-free memory error.

A local attacker could exploit this vulnerability by running a specially crafted application. When the software processes the application, a use-after-free memory error condition may occur that the attacker could use to gain elevated privileges and execute arbitrary code on the system with these privileges, resulting in a complete compromise of the system.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators are advised to allow only trusted users to access local systems.

Administrators are advised to allow only trusted users to have network access.

Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.

Administrators are advised to monitor critical systems.
 
Patches/Software
Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Microsoft Update service. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.
 
Alert History
 
Initial Release


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Microsoft, Inc.Windows 7 for 32-bit systems Base, SP1
Microsoft, Inc.Windows Server 2003 Datacenter Edition Base, SP1, SP2 | Datacenter Edition, 64-bit (Itanium) Base, SP1, SP2 | Datacenter Edition x64 (AMD/EM64T) Base, SP1, SP2 | Enterprise Edition Base, SP1, SP2 | Enterprise Edition, 64-bit (Itanium) Base, SP1, SP2 | Enterprise Edition x64 (AMD/EM64T) Base, SP1, SP2 | Standard Edition Base, SP1, SP2 | Standard Edition, 64-bit (Itanium) Base, SP1, SP2 | Standard Edition x64 (AMD/EM64T) Base, SP1, SP2 | Web Edition Base, SP1, SP2
Microsoft, Inc.Windows Server 2008 Datacenter Edition Base, SP1, SP2 | Enterprise Edition Base, SP1, SP2 | Essential Business Server Standard Base, SP1, SP2 | Essential Business Server Premium Base, SP1, SP2 | Standard Edition Base, SP1, SP2
Microsoft, Inc.Windows Vista Home Basic Base, SP1, SP2 | Home Premium Base, SP1, SP2 | Business Base, SP1, SP2 | Enterprise Base, SP1, SP2 | Ultimate Base, SP1, SP2
Microsoft, Inc.Windows XP Home Edition Base, SP1, SP2, SP3 | Professional Edition Base, SP1, SP2, SP3 | Professional x64 (AMD/EM64T) Base, SP1, SP2, SP3 | Tablet PC Edition Base, 2005, SP3 | Media Center Edition Base, 2005, SP3

Associated Products:
N/A




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