Roxen counter module

2005-11-03T00:00:00
ID OPENVAS:10207
Type openvas
Reporter This script is Copyright (C) 2000 Hendrik Scholz
Modified 2017-12-07T00:00:00

Description

The Roxen Challenger webserver is running and the counter module is installed. Requesting large counter GIFs eats up CPU-time on the server. If the server does not support threads this will prevent the server from serving other clients.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: roxen_counter.nasl 8023 2017-12-07 08:36:26Z teissa $
# Description: Roxen counter module
#
# Authors:
# Hendrik Scholz <hendrik@scholz.net>
# Minor changes by rd :
# - check for the error code in the first line only
# - compatible with no404.nasl
#
# Copyright:
# Copyright (C) 2000 Hendrik Scholz
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# 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 = "The Roxen Challenger webserver is running and the counter module is installed.
Requesting large counter GIFs eats up CPU-time on the server. If the server does not support threads this will prevent the server from serving other clients.";

tag_solution = "Disable the counter-module. There might be a patch available in the future.";

if(description)
{
 script_id(10207);
 script_version("$Revision: 8023 $");
 script_tag(name:"last_modification", value:"$Date: 2017-12-07 09:36:26 +0100 (Thu, 07 Dec 2017) $");
 script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
 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_tag(name:"qod_type", value:"remote_banner_unreliable");
 name = "Roxen counter module";
 script_name(name);
 


 
 
 script_category(ACT_GATHER_INFO);
 
 
 script_copyright("This script is Copyright (C) 2000 Hendrik Scholz");

 family = "Web application abuses";
 script_family(family);

 script_dependencies("gb_get_http_banner.nasl");
 script_mandatory_keys("Roxen/banner");
 script_require_ports("Services/www", 80);
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 exit(0);
}

#
# The script code starts here

include("http_func.inc");
include("http_keepalive.inc");
include("global_settings.inc");

port = get_http_port(default:80);

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

if(get_port_state(port) && ! get_kb_item("Services/www/" + port + "/embedded") )
{
 name = string("www/no404/", port);
 no404 = tolower(get_kb_item(name));
 data = string("/counter/1/n/n/0/3/5/0/a/123.gif");
 data = http_get(item:data, port:port);
 soc = http_open_socket(port);
 if(soc)
 {
  send(socket:soc, data:data);
  line = recv_line(socket:soc, length:1024);
  buf = http_recv(socket:soc);
  buf = tolower(buf);
  must_see = "image";
  http_close_socket(soc);
  if(no404)
  {
    if(no404 >< buf)exit(0);
  }
  if((" 200 " >< line)&&(must_see >< buf))security_message(port);
 }
}