vulnwire
7.2high

CVE-2016-1548

An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for tha…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.2
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.8%
percentile 90%
Public exploits
0
none known

An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched.

Exploit prediction (EPSS)

3.81% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.2CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
NVD2.06.4AV:N/AC:L/Au:N/C:N/I:P/A:P

Affected products

  • NTP Project NTP
  • NTPsec Project NTPSec

Classification

Weakness

References

  • ubuntu.com /usn/USN-3096-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • debian.org /security/2016/dsa-3629 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • talosintelligence.com /reports/TALOS-2016-0082/ · x_refsource_MISC, x_transferred
  • oracle.com /technetwork/topics/security/linuxbulletinapr2016-2952096.html · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2016:1141 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-07/msg00026.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securityfocus.com /bid/88264 · vdb-entry, x_refsource_BID, x_transferred
  • kb.cert.org /vuls/id/718152 · third-party-advisory, x_refsource_CERT-VN, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1552.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securitytracker.com /id/1035705 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • oracle.com /technetwork/topics/security/bulletinapr2016-2952098.html · x_refsource_CONFIRM, x_transferred
  • security.netapp.com /advisory/ntap-20171004-0002/ · x_refsource_CONFIRM, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd · vendor-advisory, x_refsource_CISCO, x_transferred
  • security.freebsd.org /advisories/FreeBSD-SA-16:16.ntp.asc · vendor-advisory, x_refsource_FREEBSD, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00042.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-05/msg00114.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • security.gentoo.org /glsa/201607-15 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-05/msg00052.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • packetstormsecurity.com /files/136864/Slackware-Security-Advisory-ntp-Updates.html · x_refsource_MISC, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00001.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • talosintelligence.com /vulnerability_reports/TALOS-2016-0082 · x_refsource_MISC, x_transferred
  • lists.fedoraproject.org /pipermail/package-announce/2016-May/184669.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-05/msg00037.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • debian.org /security/2016/dsa-3629 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • securityfocus.com /archive/1/538233/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00020.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securityfocus.com /archive/1/archive/1/538233/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-05/msg00034.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.fedoraproject.org /pipermail/package-announce/2016-May/183647.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • cert-portal.siemens.com /productcert/pdf/ssa-497656.pdf · x_refsource_CONFIRM, x_transferred
  • us-cert.cisa.gov /ics/advisories/icsa-21-103-11 · x_refsource_MISC, x_transferred
  • cert-portal.siemens.com /productcert/pdf/ssa-211752.pdf · x_refsource_CONFIRM, x_transferred
  • us-cert.cisa.gov /ics/advisories/icsa-21-159-11 · x_refsource_MISC, x_transferred
  • arista.com /en/support/advisories-notices/security-advisories/1332-security-advisory-19 · x_refsource_MISC, x_transferred

Sources

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