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AUSCERT External Security Bulletin Redistribution
ESB-2013.1247
Vulnerabilities in Microsoft Excel Could Allow Remote Code
Execution (2858300)
11 September 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Excel
Publisher: Microsoft
Operating System: Windows
Impact/Access: Administrator Compromise -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2013-3159 CVE-2013-3158 CVE-2013-1315
Original Bulletin:
http://technet.microsoft.com/en-us/security/bulletin/ms13-073
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Microsoft Security Bulletin MS13-073 - Important
Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2858300)
Published Date: September 10, 2013
Version: 1.0
General Information
Executive Summary
This security update resolves three privately reported vulnerabilities in
Microsoft Office. The most severe vulnerabilities could allow remote code
execution if a user opens a specially crafted Office file with an affected
version of Microsoft Excel or other affected Microsoft Office software. An
attacker who successfully exploited the most severe vulnerabilities could gain
the same user rights as the current 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 Important for all supported editions of
Microsoft Excel 2003, Microsoft Excel 2007, Microsoft Excel 2010, Microsoft
Excel 2013, Microsoft Excel 2013 RT, and Microsoft Office for Mac 2011; it is
also rated Important for supported versions of Microsoft Excel Viewer and
Microsoft Office Compatibility Pack.
Affected Software
Microsoft Excel 2003 Service Pack 3
Microsoft Excel 2007 Service Pack 3
Microsoft Excel 2010 Service Pack 1 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 1 (64-bit editions)
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Excel 2013 (32-bit editions)
Microsoft Excel 2013 (64-bit editions)
Microsoft Excel 2013 RT
Microsoft Office for Mac 2011
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Excel Viewer
Vulnerability Information
Microsoft Office Memory Corruption Vulnerability - CVE-2013-1315
A remote code execution vulnerability exists in the way that Microsoft Excel
parses content in Excel 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.
Microsoft Office Memory Corruption Vulnerability - CVE-2013-3158
A remote code execution vulnerability exists in the way that Microsoft Excel
parses content in Excel 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.
XML External Entities Resolution Vulnerability - CVE-2013-3159
An information disclosure vulnerability exists in the way that Microsoft Excel
parses specially crafted XML files containing external entities.
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