Mozilla may associate persisted XUL attributes with an incorrect URL

Overview

Mozilla can allow persisted XUL attributes to associate with the wrong URL. This may allow a remote attacker to execute arbitrary code.

Description

XUL

XUL is an XML-based user interface language, which is used by Mozilla.

Persisted XUL

XUL elements with the persist attribute maintain their values after the window is closed. These values are stored in the localstore.rdf file.

The problem

Some persisted XUL attributes can be associated with the wrong URL. Mozilla Firefox and Thunderbird are reported to be vulnerable.

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Impact

By convincing a user to view a specially crafted HTML document (e.g., a web page, an HTML email message, or an HTML email attachment), an attacker may be able to execute arbitrary code with the privileges of the user.

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Solution

Apply an update
Refer to Mozilla Foundation Security Advisory 2006-35 for fixed versions of Mozilla products.

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Disable JavaScript

This vulnerability can be mitigated by disabling JavaScript.

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Vendor Information

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Mozilla, Inc. __ Affected

Updated: June 02, 2006

Status

Affected

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.

Addendum

Please refer to Mozilla Foundation Security Advisory 2006-35.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23243153 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.mozilla.org/security/announce/2006/mfsa2006-35.html&gt;
• <https://bugzilla.mozilla.org/show_bug.cgi?id=329677&gt;
• <http://www.mozilla.org/projects/xul/&gt;
• <http://www.mozilla.org/xpfe/xulref/common.html#persist&gt;
• <http://www.securityfocus.com/bid/18228&gt;

Acknowledgements

Thanks to Mozilla Foundation Security Advisory for reporting this vulnerability, who in turn credit Jonas Sicking.

This document was written by Will Dormann.

Other Information

CVE IDs:	CVE-2006-2775
Severity Metric:	11.48 Date Public: