Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2885093)

ITS Advisory Number: 
2013-109
Date(s) Issued: 
Tuesday, November 12, 2013
Subject: 
Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2885093)
Overview: 

Multiple vulnerabilities have been discovered in Microsoft Office, which is Microsofts business application suite, that could allow remote code execution. Exploitation may occur if a user opens a specially crafted WordPerfect document using an affected version of Microsoft Office. Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

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Systems Affected: 
  • Microsoft Office 2003
  • Microsoft Office 2007
  • Microsoft Office 2010
  • Microsoft Office 2013
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
High
BUSINESS
Large and medium business entities: 
High
Small business entities: 
High
Home Users: 
High
Description: 

Multiple vulnerabilities have been identified in Microsoft Office that could allow remote code execution.  These vulnerabilities are caused due to the way that Microsoft Word handles specially crafted Office files. These vulnerabilities exists in the way that affected Microsoft Office software parses specially crafted WordPerfect document files

Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Actions: 
  • Apply appropriate patches provided by Microsoft to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Remind users not to open email attachments from unknown users or suspicious emails from trusted sources. 
References: 
Microsoft:
http://technet.microsoft.com/en-us/security/bulletin/ms13-091
CVE:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0082
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1324
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1325