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Category:   Application (Generic)  >   Bugzilla Vendors:   Mozilla.org
Bugzilla Lets Remote Users Obtain Potentially Sensitive Information and Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1034556
SecurityTracker URL:  http://securitytracker.com/id/1034556
CVE Reference:   CVE-2015-8508, CVE-2015-8509   (Links to External Site)
Date:  Jan 4 2016
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Bugzilla. A remote user can obtain potentially sensitive information on the target system. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input in a bug summary before displaying the input when CreateImagemap() generates a dependency graph [CVE-2015-8508]. 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 Bugzilla 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.

Holger Fuhrmannek reported this vulnerability.

Some web browsers do not properly parse CSV files generated via a '<script>' element in an external HTML page. The external page may be able to access potentially sensitive information in the CSV file [CVE-2015-8509].

Mario Gomes reported this vulnerability.

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

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Bugzilla 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 (4.2.15, 4.4.10, 5.0.1) [in December 2015].

The vendor's advisory is available at:

https://www.bugzilla.org/security/4.2.15/

Vendor URL:  www.bugzilla.org/security/4.2.15/ (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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