Detections
Analytics

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

high Nessus Plugin ID 95436

Language:

Synopsis

The remote macOS or Mac OS X 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 macOS or Mac OS X 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.

Solution

Upgrade to Mozilla Firefox version 50.0.1 or later.

See Also

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

Plugin Details

Severity: High

ID: 95436

File Name: macosx_firefox_50_0_1.nasl

Version: 1.7

Type: local

Agent: macosx

Published: 12/1/2016

Updated: 1/15/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-9078

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: MacOSX/Firefox/Installed

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/28/2016

Vulnerability Publication Date: 11/28/2016

Reference Information

CVE: CVE-2016-9078

BID: 94569

MFSA: 2016-91