MikroTik RouterOS < 6.48.2 Multiple DoS Vulnerabilities

# Copyright (C) 2022 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:/o:mikrotik:routeros";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.127012");
  script_version("2022-05-23T03:07:35+0000");
  script_tag(name:"last_modification", value:"2022-05-23 03:07:35 +0000 (Mon, 23 May 2022)");
  script_tag(name:"creation_date", value:"2022-05-16 13:34:06 +0000 (Mon, 16 May 2022)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-05-20 15:19:00 +0000 (Fri, 20 May 2022)");

  script_cve_id("CVE-2021-36613", "CVE-2021-36614");

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

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

  script_name("MikroTik RouterOS < 6.48.2 Multiple DoS Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone Networks GmbH");
  script_family("Denial of Service");
  script_dependencies("gb_mikrotik_router_routeros_consolidation.nasl");
  script_mandatory_keys("mikrotik/detected");

  script_tag(name:"summary", value:"MikroTik RouterOS is prone to multiple denial of service (DoS)
  vulnerabilities.");

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

  script_tag(name:"insight", value:"The following vulnerabilities exist:

  - CVE-2021-36613: The tr069-client process suffers from a memory corruption vulnerability. By
  sending a crafted packet, an authenticated remote user can crash the tr069-client process due to
  NULL pointer dereference.

  - CVE-2021-36614: The ptp process suffers from a memory corruption vulnerability. By sending a
  crafted packet, an authenticated remote user can crash the ptp process due to NULL pointer
  dereference.");

  script_tag(name:"affected", value:"MikroTik RouterOS all versions below 6.48.2.");

  script_tag(name:"solution", value:"Update to version 6.48.2 or later.");

  script_xref(name:"URL", value:"https://seclists.org/fulldisclosure/2021/Jul/0");

  exit(0);
}

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

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version_is_less(version: version, test_version: "6.48.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "6.48.2");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);