CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
43.7%
MikroTik RouterOS is prone to multiple denial of service (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("1.3.6.1.4.1.25623.1.0.147752");
script_version("2022-03-10T03:03:30+0000");
script_tag(name:"last_modification", value:"2022-03-10 03:03:30 +0000 (Thu, 10 Mar 2022)");
script_tag(name:"creation_date", value:"2022-03-04 03:35:22 +0000 (Fri, 04 Mar 2022)");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-03-08 18:31:00 +0000 (Tue, 08 Mar 2022)");
script_cve_id("CVE-2020-22844", "CVE-2020-22845");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("MikroTik RouterOS < 6.47.1 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-2020-22844: Buffer overflow allows unauthenticated attackers to cause a DoS via crafted SMB
requests
- CVE-2020-22845: Buffer overflow allows unauthenticated attackers to cause a DoS via crafted FTP
requests");
script_tag(name:"affected", value:"MikroTik RouterOS version 6.47 and prior.");
script_tag(name:"solution", value:"Update to version 6.47.1 or later.");
script_xref(name:"URL", value:"https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.md");
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: "6.47.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "6.47.1");
security_message(port: 0, data: report);
exit(0);
}
exit(99);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
43.7%