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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2009.0050 -- AUSCERT ALERT
                                   [Win]
            Microsoft Works Converters: Execute Arbitrary Code
                               10 June 2009

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        AusCERT Alert Summary
        ---------------------

Product:              Microsoft Works Converters
Publisher:            Microsoft
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-1533

Original Bulletin:    
  http://www.microsoft.com/technet/security/bulletin/MS09-024.mspx

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Microsoft Security Bulletin MS09-024 - Critical

Vulnerability in Microsoft Works Converters Could Allow Remote Code 
Execution (957632)

   Published: June 9, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves a privately reported vulnerability in the 
   Microsoft Works converters. The vulnerability could allow remote code 
   execution if a user opens a specially crafted Works file. An attacker 
   who successfully exploited this vulnerability could gain the same user 
   rights as the local user. 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 Critical for supported editions of 
   Microsoft Office Word 2000. This security update is also rated important 
   for supported editions of Microsoft Office Word 2002, Microsoft Office 
   Word 2003 with the Microsoft Works 69 File Converter, and Microsoft 
   Office Word 2007 Service Pack 1; and Microsoft Works 8.5 and Microsoft 
   Works 9.

Affected Software

   Microsoft Office Word 2000 Service Pack 3
   Microsoft Office Word 2002 Service Pack 3
   Microsoft Office Word 2003 Service Pack 3 with the
   Microsoft Works 6-9 File Converter
   (Microsoft Office Word 2003 is affected if a vulnerable Works
   converter is installed)
   Microsoft Office Word 2007 Service Pack 1
   Microsoft Works 8.5
   Microsoft Works 9

Vulnerability Information

   File Converter Buffer Overflow Vulnerability - CVE-2009-1533

   A remote code execution vulnerability exists in the way that the Works for 
   Windows document converters handle specially crafted Works files. The 
   vulnerability could allow remote code execution if a user opens a 
   specially crafted .wps file. 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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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

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