osTicket < 1.14.3 Multiple Vulnerabilities

# Copyright (C) 2020 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:osticket:osticket";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.144509");
  script_version("2022-05-05T09:07:46+0000");
  script_tag(name:"last_modification", value:"2022-05-05 09:07:46 +0000 (Thu, 05 May 2022)");
  script_tag(name:"creation_date", value:"2020-08-31 06:10:51 +0000 (Mon, 31 Aug 2020)");
  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:3.1/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:"2021-01-30 02:29:00 +0000 (Sat, 30 Jan 2021)");

  script_cve_id("CVE-2020-16193", "CVE-2020-24917", "CVE-2020-24881");

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

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

  script_name("osTicket < 1.14.3 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("osticket_http_detect.nasl");
  script_mandatory_keys("osticket/detected");

  script_tag(name:"summary", value:"osTicket is prone to multiple cross-site scripting (XSS)
  vulnerabilities.");

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

  - CVE-2020-16193: XSS because include/staff/banrule.inc.php has an unvalidated echo
  $info['notes'] call

  - CVE-2020-24917: XSS via a crafted filename to DraftAjaxAPI::_uploadInlineImage() in
  include/ajax.draft.php

  - CVE-2020-24881: SSRF where an attacker can add malicious file to server or perform port
  scanning");

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

  script_tag(name:"affected", value:"osTicket version 1.14.2 and prior.");

  script_tag(name:"solution", value:"Update to version 1.14.3 or later.");

  script_xref(name:"URL", value:"https://github.com/osTicket/osTicket/pull/5616/commits/fb570820ef1138776f929a179906e1d8089179d9");
  script_xref(name:"URL", value:"https://github.com/osTicket/osTicket/commit/518de223933eab0c5558741ce317f36958ef193d");
  script_xref(name:"URL", value:"https://sisl.lab.uic.edu/projects/chess/osticket-xss/");
  script_xref(name:"URL", value:"https://blackbatsec.medium.com/cve-2020-24881-server-side-request-forgery-in-osticket-eea175e147f0");

  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"];
location = infos["location"];

if (version_is_less(version: version, test_version: "1.14.3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.14.3", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);