July 10, 2012
Microsoft SharePoint is prone to an open-redirection vulnerability because the application fails to properly sanitize user-supplied input.
An attacker can leverage this issue by constructing a crafted URI and enticing a user to follow it. When an unsuspecting victim follows the link, they may be redirected to an attacker-controlled site; this may aid in phishing attacks. Other attacks are possible.
- Microsoft InfoPath 2007
- Microsoft InfoPath 2007 SP2
- Microsoft InfoPath 2007 SP3
- Microsoft InfoPath 2010
- Microsoft InfoPath 2010 (32-bit editions)
- Microsoft InfoPath 2010 (64-bit editions)
- Microsoft InfoPath 2010 SP1 (32-bit editions)
- Microsoft InfoPath 2010 SP1 (64-bit editions)
- Microsoft Office SharePoint Server 2007 SP2
- Microsoft Office SharePoint Server 2007 SP2 (64-bit)
- Microsoft Office SharePoint Server 2007 SP3
- Microsoft Office SharePoint Server 2007 SP3 (64-bit)
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 a successful exploit.
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 detect and block attacks and anomalous activity such as requests containing suspicious URI sequences. Since the webserver may log such requests, review its logs regularly.
Do not follow links provided by unknown or untrusted sources.
To reduce the likelihood of successful exploits, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Vendor updates are available. Please see the references for more information.
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.