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Mozilla Foundation Security Advisory 2015-99

Site attribute spoofing on Android by pasting URL with unknown scheme

Announced
September 22, 2015
Reporter
Jordi Chancel
Impact
Moderate
Products
Firefox
Fixed in
  • Firefox 41

Description

Security researcher Jordi Chancel reported that on Firefox for Android, when a URL is pasted with an unknown protocol, such as secure: or httpz:, the pasted URL is shown in the addressbar but no navigation occurs. Other addressbar attributes present before this pasted URL is entered will continue to be rendered. This could lead to potential spoofing by a malicious site.

This issue only affects Firefox for Android and does not affect Firefox on OS X, Linux, or Windows operating systems.

References