D-Link DIR-850L Rev.A1 < 1.20 / Rev.B1 < 2.20 XSS / Backdoor / Code Execution 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:/o:dlink:dir-850l_firmware";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.107242");
  script_version("2024-06-28T15:38:46+0000");
  script_tag(name:"last_modification", value:"2024-06-28 15:38:46 +0000 (Fri, 28 Jun 2024)");
  script_tag(name:"creation_date", value:"2017-09-12 17:47:21 +0200 (Tue, 12 Sep 2017)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:"2023-11-08 21:17:00 +0000 (Wed, 08 Nov 2023)");

  script_cve_id("CVE-2017-14413", "CVE-2017-14414", "CVE-2017-14415", "CVE-2017-14416",
                "CVE-2017-14417", "CVE-2017-14418", "CVE-2017-14419", "CVE-2017-14420",
                "CVE-2017-14421", "CVE-2017-14422", "CVE-2017-14423", "CVE-2017-14424",
                "CVE-2017-14425", "CVE-2017-14426", "CVE-2017-14427", "CVE-2017-14428",
                "CVE-2017-14429", "CVE-2017-14430");

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

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

  script_name("D-Link DIR-850L Rev.A1 < 1.20 / Rev.B1 < 2.20 XSS / Backdoor / Code Execution Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_dlink_dir_consolidation.nasl");
  script_mandatory_keys("d-link/dir/detected", "d-link/dir/hw_version");

  script_tag(name:"summary", value:"D-Link DIR-850L devices suffer from cross-site scripting (XSS),
  access bypass, backdoor, bruteforcing, information disclosure, remote code execution (RCE), and
  denial of service (DoS) vulnerabilities.");

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

  script_tag(name:"impact", value:"Remote attacker can execute XSS attacks, obtain the admin password,
  forge firmware and to execute remote commands.");

  script_tag(name:"affected", value:"D-Link DIR-850L Rev A1 before firmware 1.20 and B1 before 2.20.");

  script_tag(name:"solution", value:"Upgrade the D-Link DIR-850L firmware to version 1.20 for Rev. A
  and/or version 2.20 for Rev. B routers.

  Check the referenced vendor link for more information on how to apply the firmware.");

  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/144056/dlink850l-xssexecxsrf.txt");
  script_xref(name:"URL", value:"http://securityaffairs.co/wordpress/62937/hacking/d-link-dir-850l-zero-day.html");
  script_xref(name:"URL", value:"http://support.dlink.com/ProductInfo.aspx?m=DIR-850L");

  exit(0);
}

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

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

# cpe:/o:dlink:dir-850l_firmware:2.06
if (!fw_vers = get_app_version(cpe: CPE, port: port))
  exit(0);

# e.g. B1
if (!hw_vers = get_kb_item("d-link/dir/hw_version"))
  exit(0);

hw_vers = toupper(hw_vers);

if (hw_vers == "A1" && version_is_less(version: fw_vers, test_version: "1.20"))
  fix  = "1.20";

if (hw_vers == "B1" && version_is_less(version: fw_vers, test_version: "2.20"))
  fix  = "2.20";

if(fix) {
  report = report_fixed_ver(installed_version: fw_vers, fixed_version:fix, extra: "Hardware revision: " + hw_vers);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);