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Category:   Application (Web Browser)  >   Mozilla Seamonkey Vendors:   Mozilla.org
Mozilla Seamonkey 'window.location' Bugs Permit Cross-Site Scripting Attacks and May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1027703
SecurityTracker URL:  http://securitytracker.com/id/1027703
CVE Reference:   CVE-2012-4194, CVE-2012-4195, CVE-2012-4196   (Links to External Site)
Updated:  Oct 27 2012
Original Entry Date:  Oct 27 2012
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.13.2
Description:   Three vulnerabilities were reported in Mozilla Seamonkey. A remote user can conduct cross-site scripting attacks. A remote user may be able to cause arbitrary code to be executed on the target user's system.

A remote user can exploit the valueOf() method of window.location to, in combination with some plugins, inject scripting code to cause arbitrary scripting code to be executed by the target user's browser [CVE-2012-4194]. The code will run in the security context of an arbitrary 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 nsLocation::CheckURL() function in window.location can be made to return the wrong calling document and principal [CVE-2012-4195]. A remote user can exploit this to cause arbitrary scripting code to be executed by the target user's browser. The code will run in the security context of an arbitrary 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 remote user may also be able to exploit this flaw in conjunction with a browser add-on to cause arbitrary code to be executed on the target user's system.

A remote user can exploit bypass security wrapper protections on the Location object, allowing the cross-origin reading of the Location object [CVE-2012-4196].

Antoine Delignat-Lavaud of the PROSECCO research team at INRIA Paris, Mariusz Mlynski, and moz_bug_r_a4 reported these vulnerabilities.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with an arbitrary 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 remote user may be able to cause arbitrary code to be executed on the target user's system.

Solution:   The vendor has issued a fix (2.13.2).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2012/mfsa2012-90.html

Vendor URL:  www.mozilla.org/security/announce/2012/mfsa2012-90.html (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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