Mozilla Firefox Security Advisory (MFSA2016-55) - Linux

# Copyright (C) 2021 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.2.1.2016.55");
  script_cve_id("CVE-2016-2826");
  script_tag(name:"creation_date", value:"2021-11-08 15:21:25 +0000 (Mon, 08 Nov 2021)");
  script_version("2021-11-08T15:21:25+0000");
  script_tag(name:"last_modification", value:"2021-11-08 15:21:25 +0000 (Mon, 08 Nov 2021)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-11-28 19:04:00 +0000 (Mon, 28 Nov 2016)");

  script_name("Mozilla Firefox Security Advisory (MFSA2016-55) - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_firefox_detect_lin.nasl");
  script_mandatory_keys("mozilla/firefox/linux/detected");

  script_xref(name:"Advisory-ID", value:"MFSA2016-55");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2016-55/");
  script_xref(name:"URL", value:"https://bugzilla.mozilla.org/show_bug.cgi?id=1237219");

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

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

  script_tag(name:"insight", value:"File overwrite and privilege escalation through Mozilla Windows updater
Security researcher Frederic Hoguin reported a mechanism where the
Mozilla Windows updater could be used to overwrite arbitrary files. He found that files
extracted by the updater from a MAR archive are not locked for writing and
can be overwritten by other processes while the updater is running. A malicious local
program could invoke the updater and then interfere with the extracted files, replacing
them with its own. This vulnerability could be used for privilege escalation if these
overwritten files were later invoked by other Windows components that had higher
privileges.");

  script_tag(name:"affected", value:"Firefox version(s) below 47.");

  script_tag(name:"solution", value:"The vendor has released an update. Please see the reference(s) for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version_unreliable");

  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);

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

if (version_is_less(version: version, test_version: "47")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "47", install_path: location);
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);