DirectAdmin DoS Vulnerability

# 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:directadmin:directadmin";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106501");
  script_version("2025-10-09T05:39:13+0000");
  script_tag(name:"last_modification", value:"2025-10-09 05:39:13 +0000 (Thu, 09 Oct 2025)");
  script_tag(name:"creation_date", value:"2017-01-09 10:12:05 +0700 (Mon, 09 Jan 2017)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");

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

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

  script_name("DirectAdmin DoS Vulnerability");

  script_category(ACT_GATHER_INFO);

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

  script_tag(name:"summary", value:"DirectAdmin is prone to a denial of service (DoS)
  vulnerability.");

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

  script_tag(name:"insight", value:"An attacker can send a username and password in the login
  screen DirectAdmin with an overly long password which results in a denial of service
  condition.");

  script_tag(name:"impact", value:"An unauthenticated attacker may cause a denial of service
  condition.");

  script_tag(name:"affected", value:"DirectAdmin version 1.50.1 and prior.");

  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://www.exploit-db.com/exploits/40996");

  exit(0);
}

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

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

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

if (version_is_less_equal(version: version, test_version: "1.50.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "None");
  security_message(port: port, data: report);
  exit(0);
}

exit(0);