Mozilla

Mozilla Foundation Security Advisory 2006-76

XSS using outer window's Function object

Announced
December 19, 2006
Reporter
moz_bug_r_a4
Impact
High
Products
Firefox
Fixed in
  • Firefox 2.0.0.1

Description

moz_bug_r_a4 demonstrated that the Function prototype regression described in bug 355161 could be exploited to bypass the protections against cross site script (XSS) injection, which could be used to steal credentials or sensitive data from arbitrary sites or perform destructive actions on behalf of a logged-in user.

This vulnerability is a regression introduced in Firefox 2.0, Firefox 1.5 releases are unaffected.

Workaround

Disable JavaScript until the upgrade is installed.

References