Discuz! <= 4.0.0 rc4 Arbitrary File Upload Flaw

2006-03-26T00:00:00
ID OPENVAS:136141256231019751
Type openvas
Reporter This script is Copyright (C) 2005 David Maciejak
Modified 2019-12-04T00:00:00

Description

According to its version, the installation of Discuz! on the remote host fails to properly check for multiple extensions in uploaded files.

                                        
                                            # OpenVAS Vulnerability Test
# Description: Discuz! <= 4.0.0 rc4 Arbitrary File Upload Flaw
#
# Authors:
# David Maciejak <david dot maciejak at kyxar dot fr>
#
# Copyright:
# Copyright (C) 2005 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.
#

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.19751");
  script_version("2019-12-04T13:23:25+0000");
  script_tag(name:"last_modification", value:"2019-12-04 13:23:25 +0000 (Wed, 04 Dec 2019)");
  script_tag(name:"creation_date", value:"2006-03-26 17:55:15 +0200 (Sun, 26 Mar 2006)");
  script_cve_id("CVE-2005-2614");
  script_bugtraq_id(14564);
  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_name("Discuz! <= 4.0.0 rc4 Arbitrary File Upload Flaw");
  script_category(ACT_GATHER_INFO);
  script_copyright("This script is Copyright (C) 2005 David Maciejak");
  script_family("Gain a shell remotely");
  script_dependencies("find_service.nasl", "http_version.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_xref(name:"URL", value:"http://archives.neohapsis.com/archives/fulldisclosure/2005-08/0440.html");

  script_tag(name:"solution", value:"Upgrade to the latest version of this software.");

  script_tag(name:"summary", value:"According to its version, the installation of Discuz! on the remote host
  fails to properly check for multiple extensions in uploaded files.");

  script_tag(name:"impact", value:"An attacker may be able to exploit this issue to execute arbitrary commands
  on the remote host subject to the privileges of the web server user id, typically nobody.");

  script_tag(name:"qod_type", value:"remote_banner");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

port = get_http_port(default:80);
if( ! can_host_php(port:port) )
   exit(0);

foreach dir( make_list_unique( "/discuz", cgi_dirs( port:port ) ) ) {

  if( dir == "/" )
    dir = "";

  url = string(dir, "/index.php");
  r = http_get_cache(item:url, port:port);
  if(!r)
    continue;

  if(("powered by Discuz!</title>" >< r) && egrep(pattern:'<meta name="description" content=.+Powered by Discuz! Board ([1-3]|4\\.0\\.0RC[0-4])', string:r)) {
    report = report_vuln_url( port:port, url:url );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

exit( 99 );