Huawei Data Communication: Denial of Service Vulnerability in Huawei Products (huawei-sa-20210512-01-dos)

# 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.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.146547");
  script_version("2021-09-06T09:01:34+0000");
  script_tag(name:"last_modification", value:"2021-09-06 09:01:34 +0000 (Mon, 06 Sep 2021)");
  script_tag(name:"creation_date", value:"2021-08-24 07:11:01 +0000 (Tue, 24 Aug 2021)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:"2021-08-30 16:25:00 +0000 (Mon, 30 Aug 2021)");

  script_cve_id("CVE-2021-22357");

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

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

  script_name("Huawei Data Communication: Denial of Service Vulnerability in Huawei Products (huawei-sa-20210512-01-dos)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("Huawei");
  script_dependencies("gb_huawei_vrp_network_device_consolidation.nasl");
  script_mandatory_keys("huawei/vrp/detected");

  script_tag(name:"summary", value:"There is a denial of service vulnerability in Huawei products.");

  script_tag(name:"insight", value:"A module cannot deal with specific messages due to validating
  inputs insufficiently. Attackers can exploit this vulnerability by sending specific messages to
  affected module. This can cause denial of service.");

  script_tag(name:"impact", value:"Attackers can exploit this vulnerability by sending specific
  messages to affected module. This can cause denial of service.");

  script_tag(name:"affected", value:"S12700 versions V200R013C00SPC500 V200R019C00SPC500

  S5700 versions V200R013C00SPC500 V200R019C00SPC500

  S6700 versions V200R013C00SPC500 V200R019C00SPC500

  S7700 versions V200R013C00SPC500 V200R019C00SPC500");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");

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

  script_xref(name:"URL", value:"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210512-01-dos-en");

  exit(0);
}

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

cpe_list = make_list("cpe:/o:huawei:s12700_firmware",
                     "cpe:/o:huawei:s5700_firmware",
                     "cpe:/o:huawei:s6700_firmware",
                     "cpe:/o:huawei:s7700_firmware");

if (!infos = get_app_version_from_list(cpe_list: cpe_list, nofork: TRUE))
  exit(0);

cpe = infos["cpe"];
version = toupper(infos["version"]);
patch = get_kb_item("huawei/vrp/patch");

if (version =~ "^V200R013C00SPC500") {
  if (cpe == "cpe:/o:huawei:s12700_firmware" || cpe == "cpe:/o:huawei:s7700_firmware") {
    report = report_fixed_ver(installed_version: version, installed_patch: patch, fixed_version: "V200R013SPH010");
    security_message(port: 0, data: report);
    exit(0);
  }

  if (cpe == "cpe:/o:huawei:s5700_firmware" || cpe == "cpe:/o:huawei:s6700_firmware") {
    report = report_fixed_ver(installed_version: version, installed_patch: patch, fixed_version: "V200R013SPH009");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^V200R019C00SPC500") {
  report = report_fixed_ver(installed_version: version, installed_patch: patch, fixed_version: "V200R019SPH008");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);