Xerver HTTP Server Directory Traversal Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_xerver_http_server_dir_traversal_vuln.nasl 4970 2017-01-09 15:00:59Z teissa $
#
# Xerver HTTP Server Directory Traversal Vulnerability
#
# Authors:
# Antu Sanadi <[email protected]>
#
# Copyright:
# Copyright (c) 2009 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
###############################################################################

tag_impact = "Successful exploitation will allow attackers to execute arbitrary
HTML and script code in a user's browser session in context of an affected site.

Impact Level: Application";

tag_affected = "Xerver version 4.32 and prior on all platforms.";

tag_insight = "The flaw is due to improper sanitization of user supplied input
passed via 'currentPath' parameter (when 'action' is set to 'chooseDirectory')
to the administrative interface.";

tag_solution = "No solution or patch was made available for at least one year
since 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.";

tag_summary = "This host is running Xerver HTTP Server and is prone to the
Directory Traversal Vulnerability";

if(description)
{
  script_id(801018);
  script_version("$Revision: 4970 $");
  script_tag(name:"last_modification", value:"$Date: 2017-01-09 16:00:59 +0100 (Mon, 09 Jan 2017) $");
  script_tag(name:"creation_date", value:"2009-10-21 10:12:07 +0200 (Wed, 21 Oct 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_cve_id("CVE-2009-3561");
  script_name("Xerver HTTP Server Directory Traversal Vulnerability");
  script_xref(name : "URL" , value : "http://www.milw0rm.com/exploits/9718");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_MIXED_ATTACK);
  script_copyright("Copyright (C) 2009 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_xerver_http_server_detect.nasl");
  script_require_ports("Services/www", 80, 32123);
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name:"solution_type", value:"WillNotFix");
  exit(0);
}


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

foreach xerPort(make_list(32123, 80))
{
  if(get_port_state(xerPort))
  {
    xerVer = get_kb_item("www/" + xerPort + "/Xerver");
    if(!isnull(xerVer)){
      break;
    }
  }
}

if(isnull(xerVer)){
  exit(0);
}

xerPort = 32123;

if(!safe_checks())
{
  request = http_get(item:"/action=chooseDirectory&currentPath=C:/",
                                                      port:xerPort);
  response = http_send_recv(port:xerPort, data:request);
  if("WINDOWS" >< response && "Program Files" >< response)
  {
    security_message(xerPort);
    exit(0);
  }

  request = http_get(item:"/action=chooseDirectory&currentPath=/",
                                                    port:xerPort);
  response = http_send_recv(port:xerPort, data:request);
  if("root" >< response && "etc" >< response)
  {
    security_message(xerPort);
    exit(0);
  }
}

if(version_is_less_equal(version:xerVer, test_version:"4.32")){
  security_message(xerPort);
}