Mozilla

Mozilla Foundation Security Advisory 2005-32

Drag and drop loading of privileged XUL

Announced
March 22, 2005
Reporter
Michael Krax
Impact
Low
Products
Firefox, Mozilla Suite
Fixed in
  • Firefox 1.0.2
  • Mozilla Suite 1.7.7

Description

A malicious page that could lure a user into dragging something (such as a fake scrollbar) can bypass the restriction on opening privileged XUL. The startup scripts in the XUL will run with enhanced privilege, though the actions taken upon merely opening most XUL are benign. So far no way to run arbitrary code supplied by the attacker has been found, but this could be a stepping-stone to future attacks.

Workaround

Disable Javascript. Upgrade to the fixed version.

References