Mozilla Firefox ESR < 78.5

## 
# (C) Tenable Network Security, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2020-51.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(142913);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id(
    "CVE-2020-15999",
    "CVE-2020-16012",
    "CVE-2020-26951",
    "CVE-2020-26953",
    "CVE-2020-26956",
    "CVE-2020-26958",
    "CVE-2020-26959",
    "CVE-2020-26960",
    "CVE-2020-26961",
    "CVE-2020-26965",
    "CVE-2020-26966",
    "CVE-2020-26968"
  );
  script_xref(name:"MFSA", value:"2020-51");
  script_xref(name:"IAVA", value:"2020-A-0537-S");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");
  script_xref(name:"CEA-ID", value:"CEA-2020-0124");

  script_name(english:"Mozilla Firefox ESR < 78.5");

  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 ESR installed on the remote Windows host is prior to 78.5. It is, therefore, affected by multiple
vulnerabilities as referenced in the mfsa2020-51 advisory.

  - Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to
    potentially exploit heap corruption via a crafted HTML page. (CVE-2020-15999)

Note that Nessus has not tested for this issue 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/mfsa2020-51/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox ESR version 78.5 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-26968");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr");
  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) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('mozilla_version.inc');

port = get_kb_item('SMB/transport');
if (!port) port = 445;

installs = get_kb_list('SMB/Mozilla/Firefox/*');
if (isnull(installs)) audit(AUDIT_NOT_INST, 'Firefox');

mozilla_check_version(installs:installs, product:'firefox', esr:TRUE, fix:'78.5', min:'78.0.0', xss:TRUE, severity:SECURITY_HOLE);