Microsoft Internet Explorer And Microsoft Lync HTML Sanitizing Information Disclosure Vulnerability

Description

Microsoft Internet Explorer and Microsoft Lync are prone to an information-disclosure vulnerability. Attackers can exploit this issue to obtain sensitive information that may aid in further attacks.

Technologies Affected

• Microsoft Groove Server 2010
• Microsoft Groove Server 2010 SP1
• Microsoft InfoPath 2007 SP2
• Microsoft InfoPath 2007 SP3
• Microsoft InfoPath 2010 (32-bit editions)
• Microsoft InfoPath 2010 (64-bit editions)
• Microsoft InfoPath 2010 SP1 (32-bit editions)
• Microsoft Internet Explorer 8
• Microsoft Internet Explorer 9
• Microsoft Lync 2010
• Microsoft Lync 2010 Attendant (32-bit)
• Microsoft Lync 2010 Attendant (64-bit)
• Microsoft Lync 2010 Attendee
• Microsoft Office Communicator 2007 R2
• Microsoft Office SharePoint Server 2007 SP2 (64-bit)
• Microsoft Office SharePoint Server 2007 SP2
• Microsoft Office SharePoint Server 2007 SP3 (64-bit)
• Microsoft Office SharePoint Server 2007 SP3
• Microsoft Office Web Apps 2010
• Microsoft Office Web Apps 2010 SP1
• Microsoft SharePoint Foundation 2010
• Microsoft SharePoint Foundation 2010 SP1
• Microsoft SharePoint Server 2010 Enterprise Edition
• Microsoft SharePoint Server 2010 SP1
• Microsoft SharePoint Server 2010 Standard Edition
• Microsoft Windows SharePoint Services 3.0 SP2

Recommendations

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.

Vendor updates are available. Please see the references for details.