MatrixSSL < 4.2.1 Out-Of-Bounds Read Vulnerability

# Copyright (C) 2019 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:matrixssl:matrixssl";

if( description )
{
  script_oid("1.3.6.1.4.1.25623.1.0.112605");
  script_version("2023-01-18T10:11:02+0000");
  script_tag(name:"last_modification", value:"2023-01-18 10:11:02 +0000 (Wed, 18 Jan 2023)");
  script_tag(name:"creation_date", value:"2019-07-11 14:57:00 +0200 (Thu, 11 Jul 2019)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/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:"2019-07-16 13:36:00 +0000 (Tue, 16 Jul 2019)");

  script_cve_id("CVE-2019-13470");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");

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

  script_name("MatrixSSL < 4.2.1 Out-Of-Bounds Read Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_matrixssl_http_detect.nasl");
  script_mandatory_keys("matrixssl/detected");

  script_tag(name:"summary", value:"MatrixSSL is prone to an out-of-bounds read vulnerability.");

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

  script_tag(name:"insight", value:"The flaw exists in ASN.1 handling.");

  script_tag(name:"affected", value:"MatrixSSL before version 4.2.1.");

  script_tag(name:"solution", value:"Update to version 4.2.1 or later.");

  script_xref(name:"URL", value:"https://github.com/matrixssl/matrixssl/blob/4-2-1-open/doc/CHANGES_v4.x.md#changes-between-420-and-421-june-2019");

  exit(0);
}

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

if(!port = get_app_port(cpe: CPE))
  exit(0);

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

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

if(version_is_less(version: version, test_version: "4.2.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "4.2.1", install_path: path);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);