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AUSCERT External Security Bulletin Redistribution
ESB-2014.0720
Vulnerabilities in Microsoft Office Could Allow Remote Code
Execution (2961037)
13 May 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Office
Publisher: Microsoft
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2014-1808 CVE-2014-1756
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Microsoft Security Bulletin MS14-023 - Important
Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2961037)
Published: May 13, 2014
Version: 1.1
This security update resolves two privately reported vulnerabilities in
Microsoft Office. The most severe vulnerability could allow remote code
execution if a user opens an Office file that is located in the same network
directory as a specially crafted library file. An attacker who successfully
exploited this vulnerability could gain the same user rights as the current
user. Customers whose accounts are configured to have fewer user rights on the
system could be less impacted than those who operate with administrative user
rights.
This security update is rated Important for supported editions of Microsoft
Office 2007, Microsoft Office 2010, and Microsoft Office 2013.
Affected Software
Microsoft Office 2007
Microsoft Office 2010
Microsoft Office 2013 and Microsoft Office 2013 RT
Vulnerability Information
Microsoft Office Chinese Grammar Checking Vulnerability - CVE-2014-1756
A remote code execution vulnerability exists in the way that affected Microsoft
Office software handles the loading of dynamic-link library (.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.
Token Reuse Vulnerability - CVE-2014-1808
An information disclosure vulnerability exists when affected Microsoft Office
software does not properly handle a specially crafted response while attempting
to open an Office file hosted on the malicious website. An attacker who
successfully exploited this vulnerability could ascertain access tokens used to
authenticate the current user on a targeted Microsoft online service.
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