Mozilla Foundation Security Advisory 2007-35

Mozilla Foundation Security Advisory 2007-35

Title: XPCNativeWraper pollution using Script object
Impact: Critical
Announced: October 18, 2007
Reporter: moz_bug_r_a4
Products: Firefox, SeaMonkey

Fixed in: Firefox 2.0.0.8
SeaMonkey 1.1.5
Description

Mozilla security researcher moz_bug_r_a4 reported that it was possible to use the Script object to modify XPCNativeWrappers in such a way that subsequent access by the browser chrome–such as by right-clicking to open a context menu–can cause attacker-supplied javascript to run with the same privileges as the user. This is similar to MFSA 2007-25 fixed in Firefox 2.0.0.5
References

* https://bugzilla.mozilla.org/show_bug.cgi?id=387881
* CVE-2007-5338