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  3. Microsoft Office Web Apps CVE-2014-1813 Remote Code Execution Vulnerability

Microsoft Office Web Apps CVE-2014-1813 Remote Code Execution Vulnerability

Risk

High

Date Discovered

May 13, 2014

Description

Microsoft Office Web Apps is prone to a remote code-execution vulnerability. An attacker can exploit this issue to execute arbitrary code in the context of the W3WP service account user.

Technologies Affected

  • Microsoft Office Web Apps 2010 SP1
  • Microsoft Office Web Apps 2010 SP2

Recommendations

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

If global access isn't needed, block access at the network perimeter to computers hosting the vulnerable application.

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

To limit the potential damage that a successful exploit may achieve, run all nonadministrative software as a regular user with the least amount of privileges required to successfully operate.

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 such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Implement multiple redundant layers of security.

Since these issues may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.
Updates are available. Please see the references or vendor advisory for more information.

Credits

The vendor reported this issue.
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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