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openvasThis script is Copyright (C) 2016 Greenbone Networks GmbHOPENVAS:1361412562310106404
HistoryJun 03, 2016 - 12:00 a.m.

NTP.org 'ntpd' Multiple Vulnerabilities - Nov16

2016-06-0300:00:00
This script is Copyright (C) 2016 Greenbone Networks GmbH
plugins.openvas.org
55

0.011 Low

EPSS

Percentile

82.6%

##############################################################################
# OpenVAS Vulnerability Test
#
# NTP.org 'ntp' Multiple Vulnerabilities (Nov-2016)
#
# Authors:
# Christian Kuersteiner <[email protected]>
#
# Copyright:
# Copyright (c) 2016 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:ntp:ntp";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106404");
  script_version("2019-09-24T10:41:39+0000");
  script_cve_id("CVE-2016-9311", "CVE-2016-9310");
  script_tag(name:"last_modification", value:"2019-09-24 10:41:39 +0000 (Tue, 24 Sep 2019)");
  script_tag(name:"creation_date", value:"2016-06-03 11:18:33 +0700 (Fri, 03 Jun 2016)");
  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_name("NTP.org 'ntpd' Multiple Vulnerabilities - Nov16");
  script_category(ACT_GATHER_INFO);
  script_copyright("This script is Copyright (C) 2016 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_ntp_detect_lin.nasl");
  script_mandatory_keys("ntpd/version/detected");

  script_xref(name:"URL", value:"https://www.kb.cert.org/vuls/id/633847");

  script_tag(name:"summary", value:"NTP.org's reference implementation of NTP server, ntpd, is prone to
  multiple vulnerabilities.");

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

  script_tag(name:"insight", value:"NTP.org's ntpd is prone to multiple vulnerabilities:

  - An exploitable configuration modification vulnerability exists in the control mode (mode 6) functionality of
  ntpd. If, against long-standing BCP recommendations, 'restrict default noquery ...' is not specified, a
  specially crafted control mode packet can set ntpd traps, providing information disclosure and DDoS
  amplification, and unset ntpd traps, disabling legitimate monitoring. (CVE-2016-9310)

  - ntpd does not enable trap service by default. If trap service has been explicitly enabled, an attacker can
  send a specially crafted packet to cause a null pointer dereference that will crash ntpd, resulting in a denial
  of service. (CVE-2016-9311)");

  script_tag(name:"impact", value:"A remote unauthenticated attacker may be able to perform a denial of
  service on NTP.org's ntpd.");

  script_tag(name:"affected", value:"Version 4.0.90 up to 4.2.8p8, 4.3.0 up to 4.3.93.");

  script_tag(name:"solution", value:"Upgrade to NTP.org's ntpd version 4.2.8p9, 4.3.94 or later.");

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

  exit(0);
}

include("version_func.inc");
include("revisions-lib.inc");
include("host_details.inc");

if(isnull(port = get_app_port(cpe:CPE)))
  exit(0);

if(!infos = get_app_full(cpe:CPE, port:port))
  exit(0);

if(!version = infos["version"])
  exit(0);

location = infos["location"];
proto = infos["proto"];

if((revcomp(a:version, b:"4.0.90") >= 0) && (revcomp(a:version, b:"4.2.8p9") < 0)) {
  report = report_fixed_ver(installed_version:version, fixed_version:"4.2.8p9", install_path:location);
  security_message(port:port, data:report, proto:proto);
  exit(0);
}

if((revcomp(a:version, b:"4.3.0") >= 0) && (revcomp(a:version, b:"4.3.94") < 0)) {
  report = report_fixed_ver(installed_version:version, fixed_version:"4.3.94", install_path:location);
  security_message(port:port, data:report, proto:proto);
  exit(0);
}

exit(99);

0.011 Low

EPSS

Percentile

82.6%

Related for OPENVAS:1361412562310106404