Zabbix Arbitrary Code Execution Vulnerability (CVE-2016-4338)

# Copyright (C) 2017 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:zabbix:zabbix";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106545");
  script_version("2022-02-23T10:57:32+0000");
  script_tag(name:"last_modification", value:"2022-02-23 10:57:32 +0000 (Wed, 23 Feb 2022)");
  script_tag(name:"creation_date", value:"2017-01-26 14:54:40 +0700 (Thu, 26 Jan 2017)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/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:"2018-10-09 20:00:00 +0000 (Tue, 09 Oct 2018)");

  script_cve_id("CVE-2016-4338");

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

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

  script_name("Zabbix Arbitrary Code Execution Vulnerability (CVE-2016-4338)");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_zabbix_http_detect.nasl");
  script_mandatory_keys("zabbix/detected");

  script_tag(name:"summary", value:"Zabbix is prone to an arbitrary code execution vulnerability.");

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

  script_tag(name:"insight", value:"The mysql user parameter configuration script
  (userparameter_mysql.conf), when used with a shell other than bash, allows context-dependent
  attackers to execute arbitrary code or SQL commands via the mysql.size parameter.");

  script_tag(name:"affected", value:"Zabbix version prior to 2.0.18, 2.2.x and 3.0.x.");

  script_tag(name:"solution", value:"Update to 2.0.18, 2.2.13, 3.0.3 or later.");

  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/136898/Zabbix-Agent-3.0.1-mysql.size-Shell-Command-Injection.html");

  exit(0);
}

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

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

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

if (version_is_less(version: version, test_version: "2.0.18")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.0.18");
  security_message(port: port, data: report);
  exit(0);
}

if (version =~ "^2\.2") {
  if (version_is_less(version: version, test_version: "2.2.13")) {
    report = report_fixed_ver(installed_version: version, fixed_version: "2.2.13");
    security_message(port: port, data: report);
    exit(0);
  }
}

if (version =~ "^3\.0") {
  if (version_is_less(version: version, test_version: "3.0.3")) {
    report = report_fixed_ver(installed_version: version, fixed_version: "3.0.3");
    security_message(port: port, data: report);
    exit(0);
  }
}

exit(99);