Mozilla Firefox < 157.0

#%NASL_MIN_LEVEL 80900
## 
# (C) Tenable, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2026-97.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(351119);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/05");

  script_cve_id(
    "CVE-2026-96869",
    "CVE-2026-100756",
    "CVE-2026-100757",
    "CVE-2026-100758",
    "CVE-2026-100759",
    "CVE-2026-100760",
    "CVE-2026-100761",
    "CVE-2026-100762",
    "CVE-2026-100763",
    "CVE-2026-100764",
    "CVE-2026-100765",
    "CVE-2026-100766",
    "CVE-2026-100767",
    "CVE-2026-100768",
    "CVE-2026-100769",
    "CVE-2026-100770",
    "CVE-2026-100771",
    "CVE-2026-100772",
    "CVE-2026-100773",
    "CVE-2026-100774",
    "CVE-2026-100775",
    "CVE-2026-100776",
    "CVE-2026-100777",
    "CVE-2026-100778",
    "CVE-2026-100779",
    "CVE-2026-100780",
    "CVE-2026-100781",
    "CVE-2026-100782",
    "CVE-2026-100783",
    "CVE-2026-100784",
    "CVE-2026-100785",
    "CVE-2026-100786",
    "CVE-2026-100787",
    "CVE-2026-100788",
    "CVE-2026-100789",
    "CVE-2026-100790",
    "CVE-2026-100791",
    "CVE-2026-100792",
    "CVE-2026-100793",
    "CVE-2026-100794",
    "CVE-2026-100795",
    "CVE-2026-100796",
    "CVE-2026-100797",
    "CVE-2026-100798",
    "CVE-2026-100799",
    "CVE-2026-100800",
    "CVE-2026-100801",
    "CVE-2026-100802",
    "CVE-2026-100803",
    "CVE-2026-100804",
    "CVE-2026-100805",
    "CVE-2026-100806",
    "CVE-2026-100807",
    "CVE-2026-100808",
    "CVE-2026-100809",
    "CVE-2026-100810",
    "CVE-2026-100811",
    "CVE-2026-100812",
    "CVE-2026-100813",
    "CVE-2026-100814",
    "CVE-2026-100815",
    "CVE-2026-100816",
    "CVE-2026-100817",
    "CVE-2026-100818",
    "CVE-2026-100819",
    "CVE-2026-100820",
    "CVE-2026-100821",
    "CVE-2026-100822",
    "CVE-2026-100824",
    "CVE-2026-100825",
    "CVE-2026-100826",
    "CVE-2026-100828",
    "CVE-2026-100829",
    "CVE-2026-100830",
    "CVE-2026-100831"
  );
  script_xref(name:"IAVA", value:"2026-A-1076");

  script_name(english:"Mozilla Firefox < 157.0");

  script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Firefox installed on the remote Windows host is prior to 157.0. It is, therefore, affected by multiple
vulnerabilities as referenced in the mfsa2026-97 advisory.

  - Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4 and
    Firefox 157. (CVE-2026-100824)

  - Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed
    in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100819)

  - Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in
    Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100756)

  - Use-after-free in the Widget component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157,
    Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100757)

  - Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4,
    Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100758)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2026-97/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 157.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-100824");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-100810");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mozilla_org_installed.nasl");
  script_require_keys("installed_sw/Mozilla Firefox");

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "requires": [
    {
      "scope": "target",
      "match": {
        "os": "windows"
      }
    }
  ],
  "checks": [
    {
      "product": {
        "name": "Mozilla Firefox",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "fixed_version": "157.0"
        }
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);