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Mozilla products vulnerable to privilege escalation via a JavaScript watch() function

Vulnerability Note VU#263412

Original Release Date: 2007-01-18 | Last Revised: 2007-02-02


A vulnerability exists in Mozilla products that may allow a remote attacker to gain elevated privileges.


Mozilla products contain a vulnerability in the way the JavaScript watch() function is handled that may result in privilege escalation. According to the Mozilla Foundation Security Advisory 2006-70:

Shutdown demonstrated that it was possible to use a JavaScript watch() to gain elevated privilege.


A remote, unauthenticated attacker may be able to gain elevated privileges.


Apply an update

According to the Mozilla Foundation Security Advisory 2006-70, this vulnerability is addressed in Firefox, Firefox, Thunderbird, and SeaMonkey 1.0.7.

Disable JavaScript

For instructions on how to disable JavaScript in Firefox, please refer to the Firefox section of the Securing Your Web Browser document.

Vendor Information


Mozilla Affected

Updated:  December 21, 2006



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


Refer to Mozilla Foundation Security Advisory 2006-70.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

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This issue was reported in Mozilla Foundation Security Advisory 2006-70. Mozilla credits shutdown with providing information about this issue.

This document was written by Chris Taschner.

Other Information

CVE IDs: CVE-2006-6501
Severity Metric: 24.30
Date Public: 2006-12-19
Date First Published: 2007-01-18
Date Last Updated: 2007-02-02 16:45 UTC
Document Revision: 26

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