Vulnerability Details : 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 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 scoring system (EPSS) score for CVE-2016-1548
Probability of exploitation activity in the next 30 days: 0.62%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-1548
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:P |
10.0
|
4.9
|
NIST |
|
7.2
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L |
3.9
|
2.7
|
NIST |
CWE ids for CVE-2016-1548
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-1548
-
http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
Slackware Security Advisory - ntp Updates ≈ Packet Storm
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
-
http://www.securityfocus.com/bid/88264
NTP CVE-2016-1548 Security Bypass Vulnerability
-
https://security.netapp.com/advisory/ntap-20171004-0002/
April 2016 Network Time Protocol Daemon (ntpd) Vulnerabilities in Multiple NetApp Products | NetApp Product Security
-
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html
[security-announce] SUSE-SU-2016:1471-1: important: Security update for ntp - openSUSE Security Announce - openSUSE Mailing Lists
-
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
-
http://www.talosintelligence.com/reports/TALOS-2016-0082/
TALOS-2016-0082 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2016-1552.html
RHSA-2016:1552 - Security Advisory - Red Hat Customer Portal
-
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html
[security-announce] openSUSE-SU-2016:1329-1: important: Security update for ntp - openSUSE Security Announce - openSUSE Mailing Lists
-
https://security.gentoo.org/glsa/201607-15
NTP: Multiple vulnerabilities (GLSA 201607-15) — Gentoo security
-
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Oracle Solaris Bulletin - April 2016
-
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html
[security-announce] SUSE-SU-2016:1278-1: important: Security update for ntp - openSUSE Security Announce - openSUSE Mailing Lists
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html
[SECURITY] Fedora 24 Update: ntp-4.2.6p5-40.fc24
-
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
[security-announce] SUSE-SU-2016:1568-1: important: Security update for ntp - openSUSE Security Announce - openSUSE Mailing Lists
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
Siemens TIM 4R-IE Devices | CISA
-
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html
[security-announce] SUSE-SU-2016:1291-1: important: Security update for ntp - openSUSE Security Announce - openSUSE Mailing Lists
-
https://access.redhat.com/errata/RHSA-2016:1141
RHSA-2016:1141 - Security Advisory - Red Hat Customer Portal
-
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Oracle Linux Bulletin - April 2016
-
https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0082
TALOS-2016-0082 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence
-
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
[security-announce] SUSE-SU-2016:1912-1: important: Security update for
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
-
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
[security-announce] SUSE-SU-2016:2094-1: important: Security update for
-
https://www.debian.org/security/2016/dsa-3629
Debian -- Security Information -- DSA-3629-1 ntp
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
-
http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded
SecurityFocus
-
https://www.kb.cert.org/vuls/id/718152
VU#718152 - NTP.org ntpd contains multiple vulnerabilities
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html
[SECURITY] Fedora 23 Update: ntp-4.2.6p5-40.fc23
-
http://www.ubuntu.com/usn/USN-3096-1
USN-3096-1: NTP vulnerabilities | Ubuntu security notices
-
https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19
Security Advisory 0019 - Arista
-
http://www.securitytracker.com/id/1035705
ntp Multiple Bugs Let Remote Users Spoof Messages, Obtain Potentially Sensitive Information, Modify Time, and Deny Service - SecurityTracker
-
http://www.securityfocus.com/archive/1/538233/100/0/threaded
SecurityFocus
-
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
openSUSE-SU-2016:1423-1: moderate: Security update for ntp
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
Siemens SIMATIC NET CP 443-1 OPC UA | CISA
-
http://www.debian.org/security/2016/dsa-3629
Debian -- Security Information -- DSA-3629-1 ntp
Products affected by CVE-2016-1548
- cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*