CVE-2016-1547

CVSS V2 Medium 5 CVSS V3 Medium 5.3
Description
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.
Overview
  • CVE ID
  • CVE-2016-1547
  • Assigner
  • cret@cert.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-01-06T21:59:00
  • Last Modified Date
  • 2021-11-17T22:15:47
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:ntp:ntp:*:p4:*:*:*:*:*:* 1 OR 4.2.8
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
http://www.talosintelligence.com/reports/TALOS-2016-0081/ Mitigation Technical Description Third Party Advisory
http://www.securityfocus.com/bid/88276
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
https://security.gentoo.org/glsa/201607-15
http://www.securitytracker.com/id/1035705
http://www.debian.org/security/2016/dsa-3629
https://security.netapp.com/advisory/ntap-20171004-0002/
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
https://access.redhat.com/errata/RHSA-2016:1141
http://rhn.redhat.com/errata/RHSA-2016-1552.html
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-1547
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1547
History
Created Old Value New Value Data Type Notes
2022-05-10 06:46:06 Added to TrackCVE
2022-12-02 12:41:17 cert@cert.org cret@cert.org CVE Assigner updated
2022-12-02 12:41:17 2017-01-06T21:59Z 2017-01-06T21:59:00 CVE Published Date updated
2022-12-02 12:41:17 2021-11-17T22:15:47 CVE Modified Date updated
2022-12-02 12:41:17 Modified Vulnerability Status updated