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Mozilla Firefox Security Advisories (MFSA2023-18, MFSA2023-20) - Windows

🗓️ 08 Jun 2023 00:00:00Reported by Copyright (C) 2023 Greenbone AGType 
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Mozilla Firefox is prone to multiple vulnerabilities including click-jacking, site-isolation bypass, and memory safety bugs, allowing attackers to execute arbitrary code, bypass security restrictions, and cause denial of service on Windows systems. Upgrade to version 114 or later

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Refs
Code
# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.0.832203");
  script_version("2025-09-16T05:38:45+0000");
  script_cve_id("CVE-2023-34414", "CVE-2023-34415", "CVE-2023-34416", "CVE-2023-34417");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2025-09-16 05:38:45 +0000 (Tue, 16 Sep 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-06-27 16:54:00 +0000 (Tue, 27 Jun 2023)");
  script_tag(name:"creation_date", value:"2023-06-08 12:11:44 +0530 (Thu, 08 Jun 2023)");
  script_name("Mozilla Firefox Security Advisories (MFSA2023-18, MFSA2023-20) - Windows");

  script_tag(name:"summary", value:"Mozilla Firefox is prone to multiple vulnerabilities.");

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

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

  - Click-jacking certificate exceptions through rendering lag.

  - Site-isolation bypass on sites that allow open redirects to data: urls.

  - Memory safety bugs.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to execute arbitrary code, bypass security restrictions and
  cause denial of service on an affected system");

  script_tag(name:"affected", value:"Mozilla Firefox version before
  114 on Windows.");

  script_tag(name:"solution", value:"Upgrade to Mozilla Firefox version 114
  or later, Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"registry");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2023-20/");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("General");
  script_dependencies("gb_firefox_detect_win.nasl");
  script_mandatory_keys("Firefox/Win/Ver");
  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:"114")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"114", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);

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