1. Symantec/
  2. Security Response/
  3. Microsoft Office CVE-2016-3366 Spoofing Vulnerability

Microsoft Office CVE-2016-3366 Spoofing Vulnerability

Risk

Medium

Date Discovered

September 13, 2016

Description

Microsoft Office is prone to a security vulnerability that may allow attackers to conduct spoofing attacks. An attacker can exploit this issue to perform unauthorized actions; other attacks are also possible.

Technologies Affected

  • Microsoft Outlook 2007
  • Microsoft Outlook 2010 (32-bit editions) Service Pack 2
  • Microsoft Outlook 2010 (64-bit editions) Service Pack 2
  • Microsoft Outlook 2013 RT Service Pack 1
  • Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
  • Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
  • Microsoft Outlook 2016 (32-bit editions)
  • Microsoft Outlook 2016 (64-bit editions)
  • Microsoft Outlook 2016 for Mac

Recommendations

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

To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

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

Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.

Do not accept or execute files from untrusted or unknown sources.

To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Do not follow links provided by unknown or untrusted sources.

Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.
Updates are available. Please see the references or vendor advisory for more information.

Credits

Incident Response Team of Certego
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.

Threat Intelligence

Subscribe
Follow the Threat Intelligence Twitter feed
STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube