D-Link DIR-819 DoS Vulnerability

# 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-819_firmware";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.170420");
  script_version("2025-03-06T05:38:27+0000");
  script_tag(name:"last_modification", value:"2025-03-06 05:38:27 +0000 (Thu, 06 Mar 2025)");
  script_tag(name:"creation_date", value:"2023-04-18 08:36:13 +0000 (Tue, 18 Apr 2023)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-04-21 03:43:00 +0000 (Fri, 21 Apr 2023)");

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

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

  script_cve_id("CVE-2022-40946");

  script_name("D-Link DIR-819 DoS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Denial of Service");
  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-819 devices are prone to a denial of service (DoS)
  vulnerability.");

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

  script_tag(name:"insight", value:"It is possible to trigger a Denial of Service via the sys_token
  parameter in a cgi-bin/webproc?getpage=html/index.html request.");

  script_tag(name:"affected", value:"D-Link DIR-819 devices in all versions.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year
  since the disclosure of this vulnerability. Likely none will be provided anymore. General
  solution options are to upgrade to a newer release, disable respective features, remove the
  product or replace the product by another one.");

  script_xref(name:"URL", value:"https://support.dlink.ca/ProductInfo.aspx?m=DIR-819");
  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/171484/D-Link-DIR-819-A1-Denial-Of-Service.html");
  script_xref(name:"URL", value:"https://github.com/whokilleddb/dlink-dir-819-dos");
  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 );

report = report_fixed_ver( installed_version:version, fixed_version:"None", extra:"Hardware revision: " + hw_version );
security_message( port:0, data:report );
exit( 0 );