Cisco IOS XE Software NAT Denial of Service Vulnerability

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/o:cisco:ios_xe";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106299");
  script_cve_id("CVE-2016-6378");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_version("2023-07-20T05:05:17+0000");

  script_name("Cisco IOS XE Software NAT Denial of Service Vulnerability");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-esp-nat");

  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 the implementation of Network Address Translation (NAT)
functionality in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected
device to reload.");

  script_tag(name:"insight", value:"The vulnerability is due to improper handling of malformed ICMP packets by
the affected software. An attacker could exploit this vulnerability by sending crafted ICMP packets that require
NAT processing by an affected device.");

  script_tag(name:"impact", value:"A successful exploit could allow the attacker to cause the device to reload,
resulting in a denial of service (DoS) condition.");

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

  script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-07-30 01:29:00 +0000 (Sun, 30 Jul 2017)");
  script_tag(name:"creation_date", value:"2016-09-29 14:15:18 +0700 (Thu, 29 Sep 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_dependencies("gb_cisco_ios_xe_consolidation.nasl");
  script_mandatory_keys("cisco/ios_xe/detected");
  exit(0);
}

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

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

affected = make_list(
  '16.2.1',
  '3.1.3S',
  '3.1.4S',
  '3.1.4a.S',
  '3.2.1S',
  '3.2.2S',
  '3.3.0S',
  '3.3.1S',
  '3.3.2S',
  '3.4.0S',
  '3.4.1S',
  '3.4.2S',
  '3.4.3S',
  '3.4.4S',
  '3.4.5S',
  '3.4.6S',
  '3.5.0S',
  '3.5.1S',
  '3.5.2S',
  '3.6.0S',
  '3.6.1S',
  '3.6.2S',
  '3.7.0S',
  '3.7.0b.S',
  '3.7.1S',
  '3.7.2S',
  '3.7.2t.S',
  '3.7.3S',
  '3.7.4S',
  '3.7.4a.S',
  '3.7.5S',
  '3.7.6S',
  '3.7.7S',
  '3.8.0S',
  '3.8.1S',
  '3.8.2S',
  '3.9.0S',
  '3.9.0a.S',
  '3.9.1S',
  '3.9.1a.S',
  '3.9.2S',
  '3.10.0S',
  '3.10.1S',
  '3.10.2S',
  '3.10.2t.S',
  '3.10.3S',
  '3.10.4S',
  '3.10.5S',
  '3.10.6S',
  '3.11.0S',
  '3.11.1S',
  '3.11.2S',
  '3.11.3S',
  '3.11.4S',
  '3.12.0S',
  '3.12.0a.S',
  '3.12.1S',
  '3.12.4S',
  '3.12.2S',
  '3.12.3S',
  '3.13.2a.S',
  '3.13.0S',
  '3.13.0a.S',
  '3.13.1S',
  '3.13.2S',
  '3.13.3S',
  '3.13.4S',
  '3.14.0S',
  '3.14.1S',
  '3.14.2S',
  '3.14.3S',
  '3.15.1c.S',
  '3.15.3S',
  '3.15.0S',
  '3.15.1S',
  '3.15.2S',
  '3.17.0S',
  '16.1.3',
  '16.1.4',
  '3.16.0S',
  '3.16.0c.S',
  '3.16.1S',
  '3.16.1a.S' );

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 );