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Vulnerability Details : CVE-2016-1547

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.
Publish Date : 2017-01-06 Last Update Date : 2018-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:1141: ntp security update (Moderate) oval:com.redhat.rhsa:def:20161141 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-1547

# Product Type Vendor Product Version Update Edition Language
1 Application NTP NTP 4.2.8 P4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
NTP NTP 1

- References For CVE-2016-1547

https://access.redhat.com/errata/RHSA-2016:1141
REDHAT RHSA-2016:1141
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
FREEBSD FreeBSD-SA-16:16
https://security.netapp.com/advisory/ntap-20171004-0002/ CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-1552.html
REDHAT RHSA-2016:1552
https://security.gentoo.org/glsa/201607-15
GENTOO GLSA-201607-15
http://www.securitytracker.com/id/1035705
SECTRACK 1035705
http://www.talosintelligence.com/reports/TALOS-2016-0081/
http://www.debian.org/security/2016/dsa-3629
DEBIAN DSA-3629
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html CONFIRM
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html CONFIRM
http://www.securityfocus.com/bid/88276
BID 88276 NTP CVE-2016-1547 Denial of Service Vulnerability Release Date:2016-11-08

- Metasploit Modules Related To CVE-2016-1547

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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