Mozilla Firefox 49.x < 50.0.1 HTTP Redirect Handling Same-origin Policy Bypass

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Windows host contains a web browser that is affected by
a same-origin policy bypass vulnerability.

Description :

The version of Mozilla Firefox installed on the remote Windows host
is 49.x prior to 50.0.1. It is, therefore, affected by a same-origin
policy bypass vulnerability in the GetChannelResultPrincipal()
function in nsScriptSecurityManager.cpp due to improper handling of
HTTP redirects to 'data: URLs'. An unauthenticated, remote attacker
can exploit this to bypass the same-origin policy.

See also :

https://www.mozilla.org/en-US/security/advisories/mfsa2016-91/

Solution :

Upgrade to Mozilla Firefox version 50.0.1 or later.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows

Nessus Plugin ID: 95437 ()

Bugtraq ID: 94569

CVE ID: CVE-2016-9078

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