DB4Web TCP relay

# SPDX-FileCopyrightText: 2002 Michel Arboi
# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.11180");
  script_version("2023-08-01T13:29:10+0000");
  script_tag(name:"last_modification", value:"2023-08-01 13:29:10 +0000 (Tue, 01 Aug 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_name("DB4Web TCP relay");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2002 Michel Arboi");
  script_family("Web application abuses");
  script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"solution", value:"Replace the debug page with a non verbose error page.");

  script_tag(name:"summary", value:"DB4Web debug page allows anybody to scan other machines.

  You may be held for responsible.");

  script_tag(name:"qod_type", value:"remote_active");
  script_tag(name:"solution_type", value:"Mitigation");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");

port = http_get_port(default:80);
# testhost = "nosuchwww.example.com";
testhost = this_host_name();

url = string("/DB4Web/", testhost, ":23/test");
r = http_get(port: port, item:url );
c = http_keepalive_send_recv(port:port, data:r);

if( ("connect() ok" >< c || "connect() failed:" >< c) &&
    "callmethodbinary_2 failed" >< c) {
  report = http_report_vuln_url(port:port, url:url);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);