Vulnerability Note VU#130923

Mozilla Firefox command line URI handling vulnerability

Original Release date: 16 Jul 2008 | Last revised: 16 Jul 2008


Mozilla Firefox contains a vulnerability that may allow an attacker to bypass security restrictions by opening specially crafted URIs using the Firefox command line interface.


Mozilla Firefox can process URIs from its command line interface that can be accessed by users or programs. Passing Firefox multiple URIs through the command line interface using the pipe symbol will launch Firefox with the URIs opened in tabs. An attacker could use this feature pass URIs to Firefox that should be handled by another application. Since Firefox may determine that the URI sent to it is from a local content source, domain and origin-based security restrictions that usually apply to remote content may be bypassed.


A remote attacker may be able to use this vulnerability to bypass security restrictions, or to aid in the exploitation of other vulnerabilities.



Per Mozilla Foundation Security Advisory 2008-35 this issue has been addressed in Firefox 3.0.1 and Firefox

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
MozillaAffected-16 Jul 2008
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to Mozilla for information that was used in this report. Mozilla credits Billy Rios for reporting this issue and Ben Turner and Dan Veditz for discovering additional attack vectors.

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: CVE-2008-2933
  • Date Public: 16 Jul 2008
  • Date First Published: 16 Jul 2008
  • Date Last Updated: 16 Jul 2008
  • Document Revision: 8


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