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Category:   Application (E-mail Server)  >   Microsoft Exchange Vendors:   Microsoft
Microsoft Exchange Server Bugs Permit Cross-Site Scripting and Account Spoofing Attacks
SecurityTracker Alert ID:  1031900
SecurityTracker URL:  http://securitytracker.com/id/1031900
CVE Reference:   CVE-2015-1628, CVE-2015-1629, CVE-2015-1630, CVE-2015-1631, CVE-2015-1632   (Links to External Site)
Date:  Mar 10 2015
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2003 SP1, 2003 CU7
Description:   Multiple vulnerabilities were reported in Microsoft Exchange Server. A remote user can conduct cross-site scripting attacks. A remote user can spoof meeting organizer accounts.

The software does not properly filter HTML code from user-supplied input before displaying the input [CVE-2015-1628, CVE-2015-1629, CVE-2015-1630, CVE-2015-1632]. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Microsoft Exchange server software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The software does not properly validate meeting organizer identity when processing meeting requests [CVE-2015-1631]. A remote user can schedule or modify meetings acting as the target meeting organizer.

Francisco Correa reported one of the cross-site scripting vulnerabilities.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Microsoft Exchange server software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-026

Vendor URL:  technet.microsoft.com/library/security/ms15-026 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (2003), Windows (2008)

Message History:   None.


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