Date Discovered October 8, 2013
Description Microsoft Silverlight is prone to an information-disclosure vulnerability.
Attackers can exploit this issue by enticing an unsuspecting user to view a malicious webpage.
Successful exploits will allow attackers to gain access to potentially sensitive information that may aid in further attacks.
- Microsoft Silverlight 5.0
- Microsoft Silverlight 5.0.61118.0
- Microsoft Silverlight 5.1.10411.0
- Microsoft Silverlight 5.1.20125.0
- Microsoft Silverlight 5.1.20513.0
Run all software as a nonprivileged user with minimal access rights. When possible, run all software as a user with minimal privileges and limited access to system resources. Use additional precautions such as restrictive environments to insulate software that may potentially handle malicious content.
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 may indicate exploit attempts or activity that results from successful exploits.
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 Vitaliy Toropov
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 firstname.lastname@example.org
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 email@example.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.