1. Symantec/
  2. Security Response/
  3. Microsoft Office CVE-2016-7233 Information Disclosure Vulnerability

Microsoft Office CVE-2016-7233 Information Disclosure Vulnerability

Risk

Medium

Date Discovered

November 8, 2016

Description

Microsoft Office is prone to an information-disclosure vulnerability. An attacker can leverage this issue to obtain sensitive information that may aid in further attacks.

Technologies Affected

  • Microsoft Excel for Mac 2011
  • Microsoft Office 2010 Service Pack 2 (32-bit editions)
  • Microsoft Office 2010 Service Pack 2 (64-bit editions)
  • Microsoft Office Compatibility Pack Service Pack 3
  • Microsoft Office Web Apps Server 2010 Service Pack 2
  • Microsoft Office Word 2007
  • Microsoft Word 2010 Service Pack 2 (32-bit editions)
  • Microsoft Word 2010 Service Pack 2 (64-bit editions)
  • Microsoft Word Automation Services on Microsoft SharePoint Server 2013 Service Pack 1
  • Microsoft Word Viewer
  • Microsoft Word for Mac 2011

Recommendations

Block external access at the network boundary, unless external parties require service.

If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Run all software as a nonprivileged user with minimal access rights.

Running server processes within a restricted environment using facilities such as chroot or jail may limit the consequences of successful exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Updates are available. Please see the references or vendor advisory for more information.

Credits

Rocco Calvi and Steven Seeley of Source Incite working with VERISIGN Defense.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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2016 Internet Security Threat Report, Volume 21
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