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Category:   Application (Generic)  >   Bugzilla Vendors:   Mozilla.org
Bugzilla Permits Cross-Site Scripting and Information Disclosure Attacks
SecurityTracker Alert ID:  1025888
SecurityTracker URL:  http://securitytracker.com/id/1025888
CVE Reference:   CVE-2011-2379, CVE-2011-2380, CVE-2011-2979, CVE-2011-2381, CVE-2011-2978, CVE-2011-2977, CVE-2011-2976   (Links to External Site)
Date:  Aug 5 2011
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  
Version(s): prior to versions 3.4.12, 3.6.6, 4.0.2, 4.1.3
Description:   Several vulnerabilities were reported in Bugzilla. A remote authenticated user can conduct cross-site scripting attacks. A remote authenticated user can inject e-mail headers. A remote authenticated user can determine group names. A local user can view uploaded attachments.

A specially crafted patch can be used to conduct cross-site scripting attacks when viewed in "Raw Unified" mode in some older browsers that perform content sniffing to determine rendering mode [CVE-2011-2379]. A remote authenticated user can create a specially crafted patch that, when viewed 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 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.

A remote authenticated user can create a specially crafted URL when creating or editing a bug or use a custom search to determine if a group exists [CVE-2011-2979, CVE-2011-2380].

A remote user can use a specially crafted attachment description containing a newline to inject headers into flagmails [CVE-2011-2381]. bugmails are not affected.

A user with access to a target user's valid session can change the destination e-mail address used by the system for the target user's account to send confirmation messages [CVE-2011-2978].

A local user can access temporary files used for uploaded attachments [CVE-2011-2977].

A remote user that can modify a BUGLIST cookie (via an external vulnerability) can inject HTML code to be displayed when a bug report is displayed, permitting cross-site scripting attacks [CVE-2011-2976].

Frederic Buclin, Byron Jones, Max Kanat-Alexander, Reed Loden, Neal Poole, Neil Rashbrook, and David Lawrence reported these vulnerabilities.

Impact:   A remote authenticated 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.

A remote authenticated user can inject e-mail headers.

A remote authenticated user can determine group names.

A local user can view uploaded attachments.

Solution:   The vendor has issued a fix (3.4.12, 3.6.6, 4.0.2, 4.1.3).

The vendor's advisory is available at:

http://www.bugzilla.org/security/3.4.11/

Vendor URL:  www.bugzilla.org/security/3.4.11/ (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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