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Vulnerability Note VU#319464

The Wizz RSS Reader chrome access vulnerability

Overview

The Wizz RSS Reader contains a vulnerability that may allow an attacker to take any action that Mozlla Firefox can.

I. Description

The Mozilla Firefox user interface components outside of the content area are created using chrome. This includes toolbars, menu bars, progress bars, and window title bars. Chrome provides content, locale, and skin information for the user interface. The Wizz RSS reader is an extension to Mozilla Firefox that searches and displays RSS feeds.

The Wizz RSS Reader reader contains a vulnerability. This vulnerability occurs because The Wizz allows javascript in an RSS feed's DOM to be executed in the context of the Wizz RSS Reader's chrome window.

Note that to exploit this vulnerability an attacker would have to convince a user to load a specially crafted RSS feed using The Wizz.

II. Impact

A remote unauthenticated attacker may be able to take any action that Mozilla Firefox is capable of performing. This includes downloading arbitrary files, redirecting browser requests, and access stored passwords.

III. Solution

Upgrade

Version 2.1.9 of the Wizz RSS reader has been released to address this vulnerability. Users are encouraged to update to version 2.1.9 as soon as possible.

Systems Affected

VendorStatusDate NotifiedDate Updated
Wizz ComputersVulnerable16-Apr-2007

References


https://addons.mozilla.org/en-US/firefox/addon/424
http://www.mozilla.org/xpfe/ConfigChromeSpec.html
http://www.w3.org/DOM/
http://en.wikipedia.org/wiki/Document_Object_Model
http://secunia.com/advisories/24913/

Credit

Thanks to the N-CIRT Lab for reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information

Date Public:2007-04-13
Date First Published:2007-04-16
Date Last Updated:2007-04-17
CERT Advisory: 
CVE-ID(s): 
NVD-ID(s): 
US-CERT Technical Alerts: 
Metric:3.27
Document Revision:20

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