Detections
Analytics

Mozilla Firefox < 68.0

critical Nessus Plugin ID 126621

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Synopsis

A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 68.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-21 advisory.

 - Until explicitly accessed by script, <code>window.globalThis</code> is not enumerable and, as a result, is not visible to code such as <code>Object.getOwnPropertyNames(window)</code>. Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed. (CVE-2019-11716)

 - Necko can access a child on the wrong thread during UDP connections, resulting in a potentially exploitable crash in some instances. (CVE-2019-11714)

 - As part of his winning Pwn2Own entry, Niklas Baumstark demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation.
 (CVE-2019-9811)

 - When an inner window is reused, it does not consider the use of <code>document.domain</code> for cross- origin protections. If pages on different subdomains ever cooperatively use <code>document.domain</code>, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use <code>document.domain</code> to relax their origin security. (CVE-2019-11711)

 - POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks.
 (CVE-2019-11712)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mozilla Firefox version 68.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/

Plugin Details

Severity: Critical

ID: 126621

File Name: macos_firefox_68_0.nasl

Version: 1.6

Type: local

Agent: macosx

Published: 7/11/2019

Updated: 11/18/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-11716

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS Score Source: CVE-2019-11714

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/9/2019

Vulnerability Publication Date: 7/9/2019

Reference Information

CVE: CVE-2019-11709, CVE-2019-11710, CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11714, CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11718, CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11723, CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11728, CVE-2019-11729, CVE-2019-11730, CVE-2019-9811

BID: 109081, 109083, 109084, 109085, 109086, 109087

MFSA: 2019-21