FIX: You may be redirected to an error page after you install security update 2649261 on a server that is running Forefront Unified Access Gateway 2010

Article ID: 2748178 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You publish a trunk on a server that is running Microsoft Forefront Unified Access Gateway (UAG) 2010.
  • You publish an Outlook Web Access application on the trunk.
  • The Outlook Web Access application is set as the initial application on the trunk.
  • The trunk is also set to use the Outlook Web Access theme.
  • You install security update 2649261 on the server that is running Forefront UAG 2010.
  • You access the trunk and then log on from a web browser.

In this scenario, you may be redirected to an error page instead of to the Outlook Web Access application. 
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Cause

After you install the security update, Forefront UAG performs a hash operation on the URL. This action triggers a redirect to an incorrect URL. The incorrect URL violates the built-in URL filtering rules and causes the redirect to the error page.
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Resolution

To resolve this problem, install the service pack that is described in the following Microsoft Knowledge Base article:
2710791
(http://support.microsoft.com/kb/2710791/ )
Description of Service Pack 2 for Forefront Unified Access Gateway 2010
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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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References

For more information about security update 2649261, click the following article number to view the article in the Microsoft Knowledge Base:  
2649261
(http://support.microsoft.com/kb/2649261/ )
 MS12-026: Description of the security update for Microsoft Forefront Unified Access Gateway 2010 Service Pack 1: April 10, 2012
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/ )
Description of the standard terminology that is used to describe Microsoft software updates
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Properties

Article ID: 2748178 - Last Review: December 7, 2012 - Revision: 1.0
Applies to
  • Microsoft Forefront Unified Access Gateway 2010 Service Pack 1
Keywords: 
kbqfe kbfix kbexpertiseinter kbsurveynew kbbug KB2748178
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