Detections
Analytics

Mozilla Firefox < 114.0

critical Nessus Plugin ID 176740

Language:

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 114.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-20 advisory.

 - The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site.
 (CVE-2023-34414)

 - When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an open redirect. Firefox no longer follows HTTP redirects to data: URLs. (CVE-2023-34415)

 - Mozilla developers and community members Gabriele Svelto, Andrew McCreight, the Mozilla Fuzzing Team, Sean Feng, and Sebastian Hengst reported memory safety bugs present in Firefox 113 and Firefox ESR 102.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2023-34416)

 - Mozilla developers and community members Andrew McCreight, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 113. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2023-34417)

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 114.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2023-20/

Plugin Details

Severity: Critical

ID: 176740

File Name: macos_firefox_114_0.nasl

Version: 1.3

Type: local

Agent: macosx

Published: 6/6/2023

Updated: 7/7/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2023-34417

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: MacOSX/Firefox/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 6/6/2023

Vulnerability Publication Date: 6/6/2023

Reference Information

CVE: CVE-2023-34414, CVE-2023-34415, CVE-2023-34416, CVE-2023-34417

IAVA: 2023-A-0277-S