Mozilla Firefox < 68.0

critical Nessus Plugin ID 126622

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Synopsis

A web browser installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Firefox installed on the remote Windows 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.

Plugin Details

Severity: Critical

ID: 126622

File Name: mozilla_firefox_68_0.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

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

Detections

Analytics