MODX CMS 2.x < 2.5.5 Multiple Vulnerabilities

# SPDX-FileCopyrightText: 2017 Greenbone AG
# 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-only

CPE = "cpe:/a:modx:revolution";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108120");
  script_version("2025-03-19T05:38:35+0000");
  script_tag(name:"last_modification", value:"2025-03-19 05:38:35 +0000 (Wed, 19 Mar 2025)");
  script_tag(name:"creation_date", value:"2017-04-06 07:42:44 +0200 (Thu, 06 Apr 2017)");
  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:"2020-01-10 19:26:00 +0000 (Fri, 10 Jan 2020)");

  script_cve_id("CVE-2017-7320", "CVE-2017-7321", "CVE-2017-7322", "CVE-2017-7323",
                "CVE-2017-7324");

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

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

  script_name("MODX CMS 2.x < 2.5.5 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_modx_cms_http_detect.nasl");
  script_mandatory_keys("modx/cms/detected");

  script_tag(name:"summary", value:"MODX CMS is prone to multiple vulnerabilities.");

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

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

  - setup/controllers/language.php does not properly constrain the language parameter, which allows
  remote attackers to conduct Cookie-Bombing attacks and cause a denial of service (cookie quota
  exhaustion), or conduct HTTP Response Splitting attacks with resultant XSS, via an invalid
  parameter value.Critical settings visible in MODx.config.

  - The update and package-installation features do not verify X.509 certificates from SSL servers,
  which allows man-in-the-middle attackers to spoof servers and trigger the execution of arbitrary
  code via a crafted certificate.

  - The update and package-installation features use http://rest.modx.com by default, which allows
  man-in-the-middle attackers to spoof servers and trigger the execution of arbitrary code by
  leveraging the lack of the HTTPS protection mechanism.

  - setup/controllers/welcome.php allows remote attackers to execute arbitrary PHP code via the
  config_key parameter to the setup/index.php?action=welcome URI.

  - setup/templates/findcore.php allows remote attackers to execute arbitrary PHP code via the
  core_path parameter.");

  script_tag(name:"affected", value:"MODX CMS version 2.x through 2.5.4.");

  script_tag(name:"solution", value:"Update to version 2.5.5 or later.");

  script_xref(name:"URL", value:"https://raw.githubusercontent.com/modxcms/revolution/v2.5.5-pl/core/docs/changelog.txt");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/97228");
  script_xref(name:"URL", value:"https://mazinahmed.net/services/public-reports/ModX%20-%20Responsible%20Disclosure%20-%20January%202017.pdf");

  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 );

vers = infos["version"];
location = infos["location"];

if( version_in_range_exclusive( version:vers, test_version_lo:"2.0", test_version_up:"2.5.5" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"2.5.5", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );