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Bulletins   Conferences   News & Media   Services   Web Log   Site Map   Site Help   Member login Login »  Become a member »   Home » Security Bul... » By Operating... » Windows (all) » AL-2009.0049 -- [Win][Mac][OSX] -- Microsoft Office ...   AL-2009.0049 -- [Win][Mac][OSX] -- Microsoft Office Excel - Execute Arbitrary Code Date: 10 June 2009 Click here for printable version -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== 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 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFKLwICNVH5XJJInbgRAm70AJ90MV9FMR+ddNgTGTuK5TsdUIlzIwCfVw1M ZYKoJi2kEb2sbuht5vyby2Q= =NdLO -----END PGP SIGNATURE-----

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