CVE-2016-1550

medium

Description

An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.

References

http://www.talosintelligence.com/reports/TALOS-2016-0084/

http://www.securityfocus.com/bid/88261

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

http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html

http://www.securityfocus.com/archive/1/538233/100/0/threaded

http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

https://www.debian.org/security/2016/dsa-3629

https://www.kb.cert.org/vuls/id/718152

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html

http://www.ubuntu.com/usn/USN-3096-1

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd

http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded

https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19

Details

Source: MITRE

Published: 2017-01-06

Updated: 2021-11-17

Type: CWE-200

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM