Microsoft KB Archive/832317

= Client receives a &quot;403.7 Client certificate required&quot; error message when trying to open a Web page =

Article ID: 832317

Article Last Modified on 6/29/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2000 Standard Edition

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SYMPTOMS
When a client tries to open a Web page that resides on a Web server that requires a client certificate through Microsoft Internet Security and Acceleration (ISA) Server (Outgoing Web Request), the client receives the following error message:

403.7 Client certificate required



CAUSE
The Web server sends the error message to the client because ISA Server does not send the client certificate to the Web server even if you correctly add a client certificate for this HTTP/HTTPS bridging rule. This problem occurs if you set up an ISA Server routing rule as follows:
 * On the Bridging tabs, enable SSL Requests (Establish a secure channel to the site) in the Redirect HTTP Request as frame.
 * On the Bridging tabs, click to select the Use a certificate to authenticate to the SSL Web Server check box, and then select a valid client certificate.
 * On the Action tabs, enable the redirecting them to a hosted site option.



Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next ISA Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

File information
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version           Size     File name --  29-Oct-2003  00:02  3.0.1200.303      178,448  Mspadmin.exe 29-Oct-2003 00:02  3.0.1200.303      103,184  Msphlpr.dll 29-Oct-2003 00:01  3.0.1200.303      393,488  W3proxy.exe 29-Oct-2003 00:02  3.0.1200.303      299,280  Wspsrv.exe



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbqfe kbhotfixserver kbisaserv2000presp2fix kbfix kbbug KB832317

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