Lucene search
+L

Mozilla Firefox Security Advisories (MFSA2021-31, MFSA2021-42) - Mac OS X

🗓️ 09 Sep 2021 00:00:00Reported by Copyright (C) 2021 Greenbone AGType 
openvas
 openvas
🔗 plugins.openvas.org👁 19 Views

This host is missing a security update according to Mozilla. Multiple flaws include mixed-content-blocking, navigating to 'mk:' URL scheme, and memory safety bugs. Successful exploitation allows arbitrary code execution and bypassing of security restrictions

Related
Refs
Code
# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:mozilla:firefox";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.818511");
  script_version("2025-09-12T05:38:45+0000");
  script_cve_id("CVE-2021-38494", "CVE-2021-38491", "CVE-2021-38493");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2025-09-12 05:38:45 +0000 (Fri, 12 Sep 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-11-04 20:49:00 +0000 (Thu, 04 Nov 2021)");
  script_tag(name:"creation_date", value:"2021-09-09 00:46:50 +0530 (Thu, 09 Sep 2021)");
  script_name("Mozilla Firefox Security Advisories (MFSA2021-31, MFSA2021-42) - Mac OS X");

  script_tag(name:"summary", value:"This host is missing a security update
  according to Mozilla.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present
  on the target host.");

  script_tag(name:"insight", value:"Multiple flaws are due to,

  - Mixed-Content-Blocking was unable to check opaque origins.

  - Navigating to 'mk:' URL scheme could load Internet Explorer.

  - Memory safety bugs.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to run arbitrary code and bypass security restrictions.");

  script_tag(name:"affected", value:"Mozilla Firefox version before
  92 on Mac OS X.");

  script_tag(name:"solution", value:"Upgrade to Mozilla Firefox version 92
  or later. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2021-38/");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("General");
  script_dependencies("gb_mozilla_prdts_detect_macosx.nasl");
  script_mandatory_keys("Mozilla/Firefox/MacOSX/Version");
  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if(!infos = get_app_version_and_location(cpe:CPE, exit_no_version:TRUE))
  exit(0);

vers = infos["version"];
path = infos["location"];

if(version_is_less(version:vers, test_version:"92")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"92", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation