Cisco IOS and Cisco IOS XE ntp Subsystem Unauthorized Access 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";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105631");
  script_cve_id("CVE-2016-1384");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_version("2023-07-21T05:05:22+0000");

  script_name("Cisco IOS and Cisco IOS XE ntp Subsystem Unauthorized Access Vulnerability");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160419-ios");

  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 ntp subsystem of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to mobilize ntp associations.

The vulnerability is due to missing authorization checks on certain ntp packets. An attacker could exploit this vulnerability by ingressing malicious packets to the ntp daemon. An exploit could allow the attacker to control the time of the affected device.

Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.");

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

  script_tag(name:"last_modification", value:"2023-07-21 05:05:22 +0000 (Fri, 21 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-12-03 03:20:00 +0000 (Sat, 03 Dec 2016)");
  script_tag(name:"creation_date", value:"2016-05-03 17:30:06 +0200 (Tue, 03 May 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_dependencies("gb_ssh_cisco_ios_get_version.nasl");
  script_mandatory_keys("cisco_ios/version");
  exit(0);
}

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

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

affected = make_list(
  '15.0(1)EZ',
  '15.1(1)S',
  '15.1(1)S1',
  '15.1(1)S2',
  '15.1(1)SY',
  '15.1(1)XO',
  '15.1(2)S',
  '15.1(2)S1',
  '15.1(2)S2',
  '15.1(2)SG',
  '15.1(2)SY',
  '15.1(3)MRA',
  '15.1(3)S',
  '15.1(3)S0a',
  '15.1(3)S1',
  '15.1(3)S2',
  '15.1(3)S3',
  '15.1(3)S4',
  '15.1(3)S5',
  '15.1(3)S5a',
  '15.1(3)S6',
  '15.2(1)E',
  '15.2(2)E',
  '15.2(3)E',
  '15.2(3)E1',
  '15.2(3)E2',
  '15.2(3)E3',
  '15.2(3)E4',
  '15.2(4)E',
  '15.2(4)E1',
  '15.2(4)E2',
  '15.2(2)EA',
  '15.2(3)EA',
  '15.2(4)EA',
  '15.2(2)EB',
  '15.2(1)EY',
  '15.2(3)GC',
  '15.2(4)GC',
  '15.2(3)GCA',
  '15.2(4)JA',
  '15.2(4)JAZ',
  '15.2(4)JB',
  '15.2(4)JN',
  '15.2(4)M',
  '15.2(2)S',
  '15.2(4)S',
  '15.2(2)SA',
  '15.2(2)SC',
  '15.2(2)SNG',
  '15.2(2)SNH',
  '15.2(2)SNH1',
  '15.2(2)SNI',
  '15.2(1)SY',
  '15.2(2)SY',
  '15.2(3)T',
  '15.2(3)XA',
  '15.2(4)XB',
  '15.3(3)JA',
  '15.3(3)JAA',
  '15.3(3)JAB',
  '15.3(3)JAX',
  '15.3(3)JB',
  '15.3(3)JBB',
  '15.3(3)JC',
  '15.3(3)JD',
  '15.3(3)JN',
  '15.3(3)JNB1',
  '15.3(3)JNC',
  '15.3(3)JNP',
  '15.3(3)M',
  '15.3(1)S',
  '15.3(2)S',
  '15.3(3)S',
  '15.3(3)S1',
  '15.3(3)S2',
  '15.3(3)S3',
  '15.3(3)S4',
  '15.3(3)S5',
  '15.3(3)S6',
  '15.3(3)S7',
  '15.3(3)S8',
  '15.3(0)SY',
  '15.3(1)SY',
  '15.3(1)T',
  '15.3(2)T',
  '15.3(3)XB12',
  '15.4(1)CG',
  '15.4(2)CG',
  '15.4(3)M',
  '15.4(3)M1',
  '15.4(3)M2',
  '15.4(3)M3',
  '15.4(3)M4',
  '15.4(3)M5',
  '15.4(3)M6',
  '15.4(1)S',
  '15.4(2)S',
  '15.4(3)S',
  '15.4(2)SN',
  '15.4(1)T',
  '15.4(2)T',
  '15.5(3)M',
  '15.5(3)M0a',
  '15.5(3)M1',
  '15.5(3)M2',
  '15.5(1)S',
  '15.5(1)S1',
  '15.5(1)S2',
  '15.5(1)S3',
  '15.5(1)S4',
  '15.5(2)S',
  '15.5(2)S1',
  '15.5(2)S2',
  '15.5(2)S3',
  '15.5(3)S',
  '15.5(3)S0a',
  '15.5(3)S1',
  '15.5(3)S1a',
  '15.5(3)S2',
  '15.5(3)SN',
  '15.5(1)T',
  '15.5(2)T',
  '15.5(2)XB',
  '15.6(1)S',
  '15.6(1)S1',
  '15.6(1)SN',
  '15.6(1)SN1',
  '15.6(1)SN2',
  '15.6(1)T',
  '15.6(2)T' );

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 );