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Category:   Device (Embedded Server/Appliance)  >   Sophos Email Appliance Vendors:   Sophos
Sophos Email Appliance Input Validation Hole in Login Page Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1019427
SecurityTracker URL:  http://securitytracker.com/id/1019427
CVE Reference:   CVE-2008-0838   (Links to External Site)
Updated:  Mar 13 2008
Original Entry Date:  Feb 18 2008
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): 2.1.0.0
Description:   A vulnerability was reported in Sophos Email Appliance. A remote user can conduct cross-site scripting attacks.

The 'Login' page does not properly filter HTML code from user-supplied input in the 'error' and 'go' parameters before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Sophos Email Appliance 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.

A demonstration exploit URL is provided:

https://[target]:18080/Login?logout=0&error=<INJECTION>&go=<INJECTION>

The vendor was notified on January 28, 2008.

The original advisory is available at:

http://www.infigo.hr/en/in_focus/advisories/INFIGO-2008-02-13

Leon Juranic of INFIGO IS reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the Sophos Email Appliance device, 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 fixed version (2.1.1.0), to be issued automatically between February 14 and 21, 2008.

The Sophos advisory is available at:

http://www.sophos.com/support/knowledgebase/article/34733.html

Vendor URL:  www.sophos.com/support/knowledgebase/article/34733.html (Links to External Site)
Cause:   Input validation error

Message History:   None.


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