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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.1138
         Insecure Library Loading in Internet Connection Signup Wi
             zard Could Allow Remote Code Execution (2443105)
                             15 December 2010

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Internet Connection Signup Wizard
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-3144  

Original Bulletin: 
   http://www.microsoft.com/technet/security/Bulletin/MS10-097.mspx

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Microsoft Security Bulletin MS10-097 - Important

Insecure Library Loading in Internet Connection Signup Wizard Could Allow 
Remote Code Execution (2443105)

Version: 1.0

General Information

Executive Summary

  This security update resolves a publicly disclosed vulnerability in the 
  Internet Connection Signup Wizard of Microsoft Windows. This security update 
  is rated Important for all supported editions of Windows XP and Windows
  Server 2003. All supported editions of Windows Vista, Windows Server 2008,
  Windows 7, and Windows Server 2008 R2 are not affected by the vulnerability.
  For more information, see the subsection, Affected and Non-Affected
  Software, in this section.

  The vulnerability could allow remote code execution if a user opens a
  .ins or .isp file located in the same network folder as a specially crafted
  library file. For an attack to be successful, a user must visit an untrusted
  remote file system location or WebDAV share and open a document from this
  location that is then loaded by a vulnerable application.

  The security update addresses the vulnerability by correcting the manner in 
  which the Internet Connection Signup Wizard loads external libraries. For
  more information about the vulnerability, see the Frequently Asked
  Questions (FAQ) subsection for the specific vulnerability entry under the
  next section, Vulnerability Information.

Affected Software

  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

Internet Connection Signup Wizard Insecure Library Loading Vulnerability - 
CVE-2010-3144

  A remote code execution vulnerability exists in the way that the Internet 
  Connection Signup Wizard, a component of Microsoft Windows, handles the 
  loading of DLL files. An attacker who successfully exploited this 
  vulnerability could take complete control of an affected system. An
  attacker could then install programs; view, change, or delete data; or
  create new accounts with full user rights. 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.

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===========================================================================
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