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

                       AL-2009.0049 -- AUSCERT ALERT
                              [Win][Mac][OSX]
              Microsoft Office Excel - Execute Arbitrary Code
                               10 June 2009

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

Product:              Microsoft Office Excel
Publisher:            Microsoft
Operating System:     Windows
                      Mac OS X
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-1134 CVE-2009-0561 CVE-2009-0560
                      CVE-2009-0559 CVE-2009-0558 CVE-2009-0557
                      CVE-2009-0549

Original Bulletin:    
  http://www.microsoft.com/technet/security/bulletin/ms09-021.mspx

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Microsoft Security Bulletin MS09-021 - Critical

Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution 
(969462)

   Published: June 9, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves several privately reported 
   vulnerabilities that could allow remote code execution if a user opens 
   a specially crafted Excel file that includes a malformed record object. 
   An attacker who successfully exploited any of these vulnerabilities 
   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.

   This security update is rated Critical for all supported editions of 
   Microsoft Office Excel 2000. For all supported editions of Microsoft 
   Office Excel 2002, Microsoft Office Excel 2003, Microsoft Office Excel 
   2007, Microsoft Office 2004 for Mac, and Microsoft Office 2008 for Mac; 
   Open XML File Format Converter for Mac; and all supported versions of 
   Microsoft Office Excel Viewer and Microsoft Office Compatibility Pack, 
   this security update is rated Important.

   The update addresses the vulnerabilities by modifying the way that 
   Excel parses Excel files.

Affected Software

   Microsoft Office Excel 2000 Service Pack 3
   Microsoft Office Excel 2002 Service Pack 3
   Microsoft Office Excel 2003 Service Pack 3
   Microsoft Office Excel 2007 Service Pack 1 and
   Microsoft Office Excel 2007 Service Pack 2
   (For Microsoft Office Excel 2007 Service Pack 1 and
   Microsoft Office Excel 2007 Service Pack 2, customers also
   need to install the security update for 
   Microsoft Office Compatibility Pack for Word, Excel, and
   PowerPoint 2007 File Formats Service Pack 1 and 
   Microsoft Office Compatibility Pack for Word, Excel, and
   PowerPoint 2007 File Formats Service Pack 2)
   Microsoft Office 2004 for Mac
   Microsoft Office 2008 for Mac
   Open XML File Converter for Mac
   Microsoft Office Excel Viewer 2003 Service Pack 3
   Microsoft Office Excel Viewer
   Microsoft Office Compatibility Pack for Word, Excel, and
   PowerPoint 2007 File Formats Service Pack 1 and
   Microsoft Office Compatibility Pack for Word, Excel, and
   PowerPoint 2007 File Formats Service Pack 2
   Microsoft Office SharePoint Server 2007 Service Pack 1 and
   Microsoft Office SharePoint Server 2007 Service Pack 2
   (32-bit editions)
   (This update applies to servers that have Excel Services
   installed, such as the default configuration of 
   Microsoft Office SharePoint Server 2007 Enterprise and
   Microsoft Office SharePoint Server 2007 For Internet Sites.
   Microsoft Office SharePoint Server 2007 Standard does not
   include Excel Services.)
   Microsoft Office SharePoint Server 2007 Service Pack 1 and
   Microsoft Office SharePoint Server 2007 Service Pack 2
   (64-bit editions)
   (This update applies to servers that have Excel Services
   installed, such as the default configuration of 
   Microsoft Office SharePoint Server 2007 Enterprise and
   Microsoft Office SharePoint Server 2007 For Internet Sites.
   Microsoft Office SharePoint Server 2007 Standard does not
   include Excel Services.)

Vulnerability Information

   Record Pointer Corruption Vulnerability - CVE-2009-0549

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   Object Record Corruption Vulnerability - CVE-2009-0557

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   Array Indexing Memory Corruption Vulnerability - CVE-2009-0558

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   String Copy Stack-Based Overrun Vulnerability - CVE-2009-0559

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   Field Sanitization Memory Corruption Vulnerability - CVE-2009-0560

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   Record Integer Overflow Vulnerability - CVE-2009-0561

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

   Record Pointer Corruption Vulnerability - CVE-2009-1134

   A remote code execution vulnerability exists in Microsoft Office Excel 
   that could allow remote code execution if a user opens a specially 
   crafted Excel file that includes a malformed record object. 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.

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