Cisco Firepower Detection Engine SSL Denial of Service Vulnerability

2017-04-07T00:00:00
ID OPENVAS:1361412562310106719
Type openvas
Reporter This script is Copyright (C) 2017 Greenbone Networks GmbH
Modified 2017-04-19T00:00:00

Description

A vulnerability in the detection engine reassembly of Secure Sockets Layer (SSL) packets for Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the Snort process consumes a high level of CPU resources.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_cisco_firepower_management_center_cisco-sa-20170405-cfpw.nasl 5975 2017-04-19 07:43:02Z teissa $
#
# Cisco Firepower Detection Engine SSL Denial of Service Vulnerability
#
# Authors:
# Christian Kuersteiner <christian.kuersteiner@greenbone.net>
#
# Copyright:
# Copyright (c) 2017 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:cisco:firepower_management_center";

if (description)
{
 script_oid("1.3.6.1.4.1.25623.1.0.106719");
 script_cve_id("CVE-2017-3885");
 script_tag(name:"cvss_base", value:"7.1");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
 script_version("$Revision: 5975 $");

 script_name("Cisco Firepower Detection Engine SSL Denial of Service Vulnerability");

 script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-cfpw");

 script_tag(name: "vuldetect" , value: "Check the version.");

 script_tag(name: "solution" , value: "See the referenced vendor advisory for a solution.");

 script_tag(name: "summary" , value: "A vulnerability in the detection engine reassembly of Secure Sockets Layer
(SSL) packets for Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause a
denial of service (DoS) condition because the Snort process consumes a high level of CPU resources.");

 script_tag(name: "insight", value: "The vulnerability is due to improper handling of an SSL packet stream. An
attacker could exploit this vulnerability by sending a crafted SSL packet stream to the detection engine on the
targeted device.");

 script_tag(name: "impact", value: "An exploit could allow the attacker to cause a DoS condition because the
Snort process consumes a high level of CPU resources. The device must be manually reloaded to recover from this
condition.");

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

 script_tag(name: "last_modification", value: "$Date: 2017-04-19 09:43:02 +0200 (Wed, 19 Apr 2017) $");
 script_tag(name: "creation_date", value: "2017-04-07 09:19:25 +0200 (Fri, 07 Apr 2017)");
 script_category(ACT_GATHER_INFO);
 script_family("CISCO");
 script_copyright("This script is Copyright (C) 2017 Greenbone Networks GmbH");
 script_dependencies("gb_cisco_firepower_management_center_version.nasl");
 script_mandatory_keys("cisco_firepower_management_center/version");

 exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (!version = get_app_version(cpe:CPE))
  exit(0);

affected = make_list(
		'6.0.0',
		'6.1.0',
		'6.2.0',
		'6.2.1');

foreach af (affected) {
  if (version == af) {
    report = report_fixed_ver(installed_version: version, fixed_version: "See advisory");
    security_message(port: 0, data: report);
    exit(0);
  }
}

exit(99);