Loxone Smart Home Default Admin HTTP Login

2016-09-07T00:00:00
ID OPENVAS:1361412562310107045
Type openvas
Reporter This script is Copyright (C) 2016 Greenbone Networks GmbH
Modified 2019-02-14T00:00:00

Description

The remote Loxone installation has default credentials set.

                                        
                                            ##############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_loxone_default_login.nasl 13659 2019-02-14 08:34:21Z cfischer $
#
# Loxone Default Login Credentials Vulenrability
#
# Authors:
# Tameem Eissa <tameem.eissa@greenbone.net>
#
# Copyright:
# Copyright (c) 2016 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

CPE = 'cpe:/a:loxone:loxone';

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.107045");
  script_version("$Revision: 13659 $");
  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_name("Loxone Smart Home Default Admin HTTP Login");

  script_tag(name:"impact", value:"Attackers can exploit this issue to obtain sensitive information that may lead to further attacks.");
  script_tag(name:"vuldetect", value:"Try to login with default credentials admin:admin");
  script_tag(name:"solution", value:"Change the username and password.");
  script_tag(name:"summary", value:"The remote Loxone installation has default credentials set.");
  script_tag(name:"solution_type", value:"Workaround");

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

  script_tag(name:"last_modification", value:"$Date: 2019-02-14 09:34:21 +0100 (Thu, 14 Feb 2019) $");
  script_tag(name:"creation_date", value:"2016-09-07 13:18:59 +0200 (Wed, 07 Sep 2016)");
  script_xref(name:"URL", value:"https://osvdb.info/OSVDB-98155");

  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("This script is Copyright (C) 2016 Greenbone Networks GmbH");
  script_dependencies("gb_loxone_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("loxone/web/detected");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");
include("misc_func.inc");

function newHandshakekey()
{
 rand = rand_str( length:16, charset: "0123456789");
 return base64( str: rand );
}

username = "admin";
password = "admin";

if (!http_port = get_app_port(cpe:CPE, service:'www')) exit (0);

useragent = http_get_user_agent();
host = http_host_name(port:http_port);
rand = rand_str(length:17, charset: "0123456789");
req = string("GET /jdev/sys/getkey?0.", rand, " HTTP/1.1\r\n",
             "Host: ", host, "\r\n",
             "User-Agent: ", useragent, "\r\n",
             "Accept-Encoding: identity\r\n",
             "Content-Type: application/x-www-form-urlencoded\r\n",
             "\r\n");

res = http_keepalive_send_recv(port:http_port, data:req, bodyonly:FALSE);

if (res !~ "HTTP/1\.. 200"  || '{"LL": {' >!< res) exit(0);

json_key = eregmatch (pattern: '"LL": [{] "control": "dev/sys/getkey", "value": "([A-F0-9]+)", "Code": "200"}}', string: res, icase:TRUE);
key = json_key[1];
if (!key) exit(0);

passphrase = username + ":" + password;
key = hex2str(key);
protocol = HMAC_SHA1(data: passphrase, key: key);
protocol1 = hexstr( protocol);
websockey_key = newHandshakekey();

req2 = string("GET /ws HTTP/1.1", "\r\n",
              "Host: ", host, "\r\n",
              "User-Agent: ", useragent, "\r\n",
              "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n",
              "Accept-Language: en-US,en;q=0.5\r\n",
              "Accept-Encoding: identity\r\n",
              "Sec-WebSocket-Version: 13\r\n",
              "origin: http://", host, "\r\n",
              "Sec-WebSocket-Protocol: ", protocol1, "\r\n",
              "Sec-WebSocket-Extensions: permessage-deflate\r\n",
              "Sec-WebSocket-Key: ", websockey_key, "\r\n",
              "Connection: keep-alive, Upgrade\r\n",
              "Pragma: no-cache\r\n",
              "Cache-Control: no-cache\r\n",
              "Upgrade: websocket\r\n",
              "\r\n");

res2 = http_keepalive_send_recv(port:http_port, data:req2);

if (res2 =~ "HTTP/1\.. 101 Web Socket Protocol Handshake" && "Sec-WebSocket-Accept" >< res2)
{
  report = "It was possible to login into Loxone web interface using username `admin` and password `admin`.";
  security_message ( port: http_port, data: report);
  exit(0);
}

exit(99);