D-Link DIR-645 Rev. A Devices Multiple Vulnerabilities (2021 - 2025)

# SPDX-FileCopyrightText: 2023 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-645_firmware";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.170316");
  script_version("2025-12-01T05:45:26+0000");
  script_tag(name:"last_modification", value:"2025-12-01 05:45:26 +0000 (Mon, 01 Dec 2025)");
  script_tag(name:"creation_date", value:"2023-02-22 19:26:41 +0000 (Wed, 22 Feb 2023)");
  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:"2022-04-08 06:33:00 +0000 (Fri, 08 Apr 2022)");

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

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

  # nb: Unlike other VTs we're using the CVEs line by line here for easier addition of new CVEs / to
  #     avoid too large diffs when adding a new CVE.
  script_cve_id("CVE-2021-43722",
                "CVE-2022-32092",
                "CVE-2022-46475",
                "CVE-2025-7192",
                "CVE-2025-10689"
                );

  script_name("D-Link DIR-645 Rev. A Devices Multiple Vulnerabilities (2021 - 2025)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 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-645 Rev. A devices are prone to multiple
  vulnerabilities.");

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

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

  - CVE-2021-43722: The hnap_main function in the cgibin handler uses sprintf to format the
  soapaction header onto the stack and has no limit on the size.

  - CVE-2022-32092: Command injection vulnerability via the QUERY_STRING parameter at
  __ajax_explorer.sgi

  - CVE-2022-46475: Stack overflow via the service= variable in the genacgi_main function

  - CVE-2025-7192: Command injection in the function ssdpcgi_main of the file /htdocs/cgibin of the
  component ssdpcgi

  - CVE-2025-10689: Command injection vulnerability via the function soapcgi_main of the file
  /soap.cgi");

  script_tag(name:"affected", value:"D-Link DIR-645 Rev A devices in all versions.");

  script_tag(name:"solution", value:"No solution was made available by the vendor. General solution
  options are to upgrade to a newer release, disable respective features, remove the product or
  replace the product by another one.

  Note:  The vendor states that technical support for DIR-645 has ended in 31.12.2018, therefore
  most probably no effort will be made to provide a fix for these vulnerabilities.");

  script_xref(name:"URL", value:"https://github.com/Insight8991/iot/blob/main/DIR-645%20Stack%20overflow.md");
  script_xref(name:"URL", value:"https://github.com/fxc233/iot-vul/tree/main/D-Link/DIR-645");
  script_xref(name:"URL", value:"https://github.com/Insight8991/iot/blob/main/DIR-645%20genacgi%20Stack%20overflow.md");
  script_xref(name:"URL", value:"https://github.com/Thir0th/Thir0th-CVE/blob/main/D-Link%20DIR%E2%80%91645%20A1%20has%20a%20remote%20arbitrary%20command%20execution%20vulnerability%20in%20ssdpcgi.md");
  script_xref(name:"URL", value:"https://legacy.us.dlink.com/pages/product.aspx?id=5ec9c4690cb84e258a81704e585167bb");
  script_xref(name:"URL", value:"https://github.com/scanleale/IOT_sec/blob/main/DIR-645-soapcgi.pdf");

  exit(0);
}

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

if ( ! version = get_app_version( cpe:CPE, nofork:TRUE ) )
  exit( 0 );

if ( ! hw_version = get_kb_item( "d-link/dir/hw_version" ) )
  exit( 0 );

if ( hw_version =~ "A" ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"None", extra:"Hardware revision: " + hw_version );
  security_message( port:0, data:report );
  exit( 0 );
} else #nb: Other revisions
  exit( 99 );