osTicket < 1.12 XSS Vulnerability

# Copyright (C) 2019 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("1.3.6.1.4.1.25623.1.0.142719");
  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:"2019-08-09 02:13:21 +0000 (Fri, 09 Aug 2019)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-05-07 18:57:00 +0000 (Tue, 07 May 2019)");

  script_cve_id("CVE-2019-11537");

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

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

  script_name("osTicket < 1.12 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 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 a cross-site scripting vulnerability.");

  script_tag(name:"insight", value:"In osTicket an XSS exists via /upload/file.php,
  /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager
  user uploads a crafted .csv file to the User Importer, because file contents can appear in an
  error message.");

  script_tag(name:"impact", value:"The XSS can lead to local file inclusion.");

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

  script_tag(name:"affected", value:"osTicket prior to version 1.12.");

  script_tag(name:"solution", value:"Update to version 1.12 or later.");

  script_xref(name:"URL", value:"https://github.com/osTicket/osTicket/pull/4869");
  script_xref(name:"URL", value:"https://github.com/osTicket/osTicket/releases/tag/v1.12");
  script_xref(name:"URL", value:"https://pentest.com.tr/exploits/osTicket-v1-11-XSS-to-LFI.html");

  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: "1.12")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.12", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);