Concrete5 <= 8.4.3 XSS Vulnerability

# Copyright (C) 2019 Greenbone Networks GmbH
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# 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,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
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CPE = "cpe:/a:concretecms:concrete_cms";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.112595");
  script_version("2022-12-08T10:12:32+0000");
  script_tag(name:"last_modification", value:"2022-12-08 10:12:32 +0000 (Thu, 08 Dec 2022)");
  script_tag(name:"creation_date", value:"2019-06-19 13:19:12 +0200 (Wed, 19 Jun 2019)");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-15 20:43:00 +0000 (Thu, 15 Jul 2021)");

  script_cve_id("CVE-2018-19146");

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

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

  script_name("Concrete5 <= 8.4.3 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_concrete5_detect.nasl");
  script_mandatory_keys("concrete5/installed");

  script_tag(name:"summary", value:"Concrete5 is prone to a stored cross-site scripting (XSS) vulnerability.");

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

  script_tag(name:"insight", value:"The vulnerability exists because config/concrete.php allows uploads
  (by administrators) of SVG files that may contain HTML data with a SCRIPT element.");

  script_tag(name:"impact", value:"Successful exploitation would allow an authenticated attacker
  to store malicious code inside the application which is then being executed when browsing to an affected site.");

  script_tag(name:"affected", value:"Concrete5 through version 8.4.3.");

  script_tag(name:"solution", value:"Update to version 8.4.4 or later.");

  script_xref(name:"URL", value:"https://hackerone.com/reports/437863");

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

if(version_is_less(version: version, test_version: "8.4.4")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "8.4.4", install_path: path);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);