Cisco ASR 903 and ASR 920 Series Devices IPv6 Packet Processing Denial of Service Vulnerability

2017-04-07T00:00:00
ID OPENVAS:1361412562310106718
Type openvas
Reporter This script is Copyright (C) 2017 Greenbone Networks GmbH
Modified 2018-10-26T00:00:00

Description

A vulnerability in Cisco ASR 903 or ASR 920 Series Devices running with an RSP2 card could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on a targeted system.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_cisco_ios_cisco-sa-20170405-asr.nasl 12106 2018-10-26 06:33:36Z cfischer $
#
# Cisco ASR 903 and ASR 920 Series Devices IPv6 Packet Processing 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:/o:cisco:ios";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106718");
  script_cve_id("CVE-2017-6603");
  script_tag(name:"cvss_base", value:"6.1");
  script_tag(name:"cvss_base_vector", value:"AV:A/AC:L/Au:N/C:N/I:N/A:C");
  script_version("$Revision: 12106 $");

  script_name("Cisco ASR 903 and ASR 920 Series Devices IPv6 Packet Processing Denial of Service Vulnerability");

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

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

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

  script_tag(name:"summary", value:"A vulnerability in Cisco ASR 903 or ASR 920 Series Devices running with an
RSP2 card could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on a
targeted system.");

  script_tag(name:"insight", value:"The vulnerability is due to insufficient processing of IPv6 packets by the
affected system. The system could push IPv6 traffic to the processor even when the device is not configured for
IPv6, which could cause other control packets to be affected.");

  script_tag(name:"impact", value:"A successful exploit could allow the attacker to cause a DoS condition on the
system.");

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

  script_tag(name:"last_modification", value:"$Date: 2018-10-26 08:33:36 +0200 (Fri, 26 Oct 2018) $");
  script_tag(name:"creation_date", value:"2017-04-07 09:09:03 +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_ssh_cisco_ios_get_version.nasl");
  script_mandatory_keys("cisco_ios/version", "cisco_ios/model");

  exit(0);
}

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

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

if (!model = get_kb_item("cisco_ios/model"))
  exit(0);

if (model !~ "^ASR9(0|2)[0-9]$")
  exit(99);

if (version == "15.4(3)S3.15") {
  report = report_fixed_ver(installed_version: version, fixed_version: "See advisory");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);