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             AUSCERT External Security Bulletin Redistribution

    Vulnerability in Indexing Service Could Allow Remote Code Execution
                              14 October 2009


        AusCERT Security Bulletin Summary

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows 2000
                   Windows XP
                   Windows Server 2003
Impact/Access:     Administrator Compromise -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-2507  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS09-057 - Important

Vulnerability in Indexing Service Could Allow Remote Code Execution (969059)

Published: October 13, 2009

Version: 1.0

General Information

Executive Summary

  This security update resolves a privately reported vulnerability in Microsoft 
  Windows. The vulnerability could allow remote code execution if an attacker 
  set up a malicious Web page that invokes the Indexing Service through a call 
  to its ActiveX component. This call could include a malicious URL and exploit 
  the vulnerability, granting the attacker access to the client system with the 
  privileges of the user browsing the Web page. Users whose accounts are 
  configured to have fewer user rights on the system could be less impacted 
  than users who operate with administrative user rights.

  This security update is rated Important for all supported editions of 
  Microsoft Windows 2000, Windows XP, and Windows Server 2003. 

  The security update addresses the vulnerability by modifying the way that the 
  Indexing Service ActiveX control processes URLs. For more information about 
  the vulnerability, see the Frequently Asked Questions (FAQ) subsection for 
  the specific vulnerability entry under the next section, Vulnerability 

  Recommendation.  The majority of customers have automatic updating enabled and 
  will not need to take any action because this security update will be 
  downloaded and installed automatically. Customers who have not enabled 
  automatic updating need to check for updates and install this update manually. 
  For information about specific configuration options in automatic updating, 
  see Microsoft Knowledge Base Article 294871.

  For administrators and enterprise installations, or end users who want to 
  install this security update manually, Microsoft recommends that customers 
  apply the update at the earliest opportunity using update management 
  software, or by checking for updates using the Microsoft Update service.

  Known Issues. None

Affected Software

  Microsoft Windows 2000 Service Pack 4 

  Windows XP Service Pack 2 and Windows XP Service Pack 3
  Windows XP Professional x64 Edition Service Pack 2

  Windows Server 2003 Service Pack 2

  Windows Server 2003 x64 Edition Service Pack 2

  Windows Server 2003 with SP2 for Itanium-based Systems

Vulnerability Information

Memory Corruption in Indexing Service Vulnerability - CVE-2009-2507

  A remote code execution vulnerability exists in the Indexing Service on 
  Windows systems. The vulnerability is due to an ActiveX control included with 
  the service not properly handling specifically crafted Web content. An attacker 
  who successfully exploited this vulnerability could take complete control of an 
  affected system.

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