January 8, 2013
Microsoft .NET Framework is prone to a remote privilege-escalation vulnerability.
An attackers can exploit this issue to gain escalated privileges within the context of the application; this results in complete control of the affected system.
- Microsoft .NET Framework 2.0
- Microsoft .NET Framework 2.0 BETA
- Microsoft .NET Framework 2.0 SP1
- Microsoft .NET Framework 2.0 SP2
- Microsoft .NET Framework 3.5
- Microsoft .NET Framework 3.5.1
- Microsoft .NET Framework 4.0
- Microsoft .NET Framework 4.5
Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
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 authentication mechanisms.
Provide an additional layer of authentication for sensitive or privileged information.
Updates are available; please see the references for more information.
Vitaliy Toropov, working with Tipping Point's Zero Day Initiative
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.