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Category:   Application (E-mail Server)  >   Microsoft Exchange Vendors:   Microsoft
Microsoft Exchange Outlook Web Access Lets Remote Users Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1033495
SecurityTracker URL:  http://securitytracker.com/id/1033495
CVE Reference:   CVE-2015-2505, CVE-2015-2543, CVE-2015-2544   (Links to External Site)
Date:  Sep 8 2015
Impact:   Disclosure of system information, Disclosure of user information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2013 SP1, 2013 Cumulative Update 8, 2013 Cumulative Update 9
Description:   Several vulnerabilities were reported in Microsoft Exchange. A remote user can obtain potentially sensitive information on the target system. A remote authenticated user can spoof email messages.

Outlook Web Access (OWA) does not properly handle web requests. A remote user can send a specially crafted request to the target web application to view potentially sensitive stack trace information on the target system [CVE-2015-2505].

John Page of hyp3rlinx reported this vulnerability.

Outlook Web Access (OWA) does not properly validate email. A remote authenticated user can send a specially crafted email to the target user to inject HTML and potentially cause the target user to enter sensitive data [CVE-2015-2543, CVE-2015-2544]. This can also be exploited via a specially crafted URL within the email.

Abdulrahman Alqabandi reported one of these vulnerabilities.

Impact:   A remote user can obtain potentially sensitive information on the target system.

A remote authenticated user can spoof email messages.

Solution:   The vendor has issued a fix.

Microsoft Exchange Server 2013 Cumulative Update 8:

https://www.microsoft.com/downloads/details.aspx?familyid=ff5ceb2d-8c97-4566-af27-10479aaa971e

Microsoft Exchange Server 2013 Cumulative Update 9:

https://www.microsoft.com/downloads/details.aspx?familyid=a3b758d3-3c43-4560-ab1a-1a51a0fa1661

Microsoft Exchange Server 2013 Service Pack 1:

https://www.microsoft.com/downloads/details.aspx?familyid=a2ce4ade-ba49-4066-8126-2b719da85fbc

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-103

Vendor URL:  technet.microsoft.com/library/security/ms15-103 (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Windows (2008), Windows (2012)

Message History:   None.


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