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Vulnerability Alert

Microsoft Windows Message Queuing Service Privilege Escalation Vulnerability

 
Threat Type:CWE-264: Permissions, Privileges, and Access Control
IntelliShield ID:18770
Version:1
First Published:2009 August 11 18:31 GMT
Last Published:2009 August 11 18:31 GMT
Port: Not available
CVE:CVE-2009-1922
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 escalated privileges.? Updates are available.

 
 
Description

Microsoft Windows contains a vulnerability that could allow a local attacker to gain escalated privileges.

This vulnerability is due to insufficient data checks on input to the Microsoft Message Queuing (MSMQ) service.  A local attacker could exploit this vulnerability by causing a malicious program to send specially formed requests to the Windows kernel.  A successful exploit could allow the attacker to execute arbitrary code with elevated privileges.

Microsoft has confirmed this vulnerability in a security bulletin and released software updates.

 
Warning Indicators

The following Microsoft systems are affected:

  • Windows 2000 SP4 and prior
  • Windows XP SP2 and prior
  • Windows XP Professional x64 Edition SP2 and prior
  • Windows Server 2003 SP2 and prior
  • Windows Server 2003 x64 Edition SP2 and prior
  • Windows Server 2003 for Itanium-based Systems SP2 and prior
  • Windows Vista
  • Windows Vista x64 Edition
 
IntelliShield Analysis

Attackers must log in locally to an affected system to exploit this vulnerability, which reduces the source of potential attacks.  Systems most at risk are multi-user workstations, terminal services, or hosting providers with large user bases that may allow unknown or untrusted user access.  If an exploit is successful, the attacker could execute arbitrary code, possibly resulting in a complete system compromise.

The Cisco Applied Intelligence team has created an Applied Mitigation Bulletin to address vulnerabilities that Microsoft disclosed in the August 2009 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 August 2009

The update available from Microsoft corrects this vulnerability by validating data within IOCTLs.

 
Vendor Announcements

Microsoft has released a security bulletin at the following link: MS09-040

 
Impact

A local attacker could exploit this vulnerability to execute arbitrary code with the privileges of the Windows kernel.  An exploit could allow the attacker to gain escalated privileges and take complete control over the vulnerable system.

 
Technical Information

This vulnerability is due to insufficient data checks on input to the MSMQ service.  Vulnerable systems fail to properly validate data within input/output controls (IOCTLs) that are sent to the Windows kernel.  The processing of malformed data could trigger memory corruption within the Windows kernel.

A local attacker could exploit this vulnerability by running a program that is designed to send malicious IOCTLs to the vulnerable system, resulting in memory corruption.  The attacker could leverage this corruption to execute arbitrary code with the privileges of the Windows kernel, allowing the attacker to gain elevated privileges.

 
Safeguards

Administrators are advised to apply the applicable software updates.

Administrators are advised to restrict local access to trusted users.

Administrators are advised to monitor critical systems.

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

 
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 Windows Update website.  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 2000 Advanced Server Base, SP1, SP2, SP3, SP4 | Professional Base, SP1, SP2, SP3, SP4 | Server Base, SP1, SP2, SP3, SP4
Microsoft, Inc.Windows Server 2003 Datacenter Edition Base, SP1, SP2 | Datacenter Edition, 64-bit (Itanium) Base, SP1, SP2 | Datacenter Edition x64 (AMD/EM64T) Base, SP2 | Enterprise Edition Base, SP1, SP2 | Enterprise Edition, 64-bit (Itanium) Base, SP1, SP2 | Enterprise Edition x64 (AMD/EM64T) Base, SP2 | Standard Edition Base, SP1, SP2 | Standard Edition, 64-bit (Itanium) Base, SP1, SP2 | Standard Edition x64 (AMD/EM64T) Base, SP2 | Web Edition Base, SP1, SP2
Microsoft, Inc.Windows Vista Home Basic Base | Home Premium Base | Business Base | Enterprise Base | Ultimate Base | Home Basic x64 Edition Base | Home Premium x64 Edition Base | Business x64 Edition Base | Enterprise x64 Edition Base | Ultimate x64 Edition Base
Microsoft, Inc.Windows XP Home Edition Base, SP1, SP2 | Professional Edition Base, SP1, SP2 | Professional x64 (AMD/EM64T) Base, SP2

Associated Products:
N/A




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