CVE-2016-1548

MEDIUM

Description

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.

References

http://www.talosintelligence.com/reports/TALOS-2016-0082/

http://www.securityfocus.com/bid/88264

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

Details

Source: MITRE

Published: 2017-01-06

Updated: 2021-04-15

Type: CWE-19

Risk Information

CVSS v2.0

Base Score: 6.4

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

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.2

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

Impact Score: 2.7

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
125008EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1555)NessusHuawei Local Security Checks
high
107061Arista Networks EOS Multiple Vulnerabilities (SA0019)NessusMisc.
medium
104204OracleVM 3.3 / 3.4 : ntp (OVMSA-2017-0165)NessusOracleVM Local Security Checks
high
104100Juniper Junos Space < 17.1R1 Multiple Vulnerabilities (JSA10826)NessusJunos Local Security Checks
high
97156F5 Networks BIG-IP : NTP vulnerability (K63675293)NessusF5 Networks Local Security Checks
medium
95967F5 Networks BIG-IP : NTP vulnerability (K64505405)NessusF5 Networks Local Security Checks
medium
93896Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : ntp vulnerabilities (USN-3096-1)NessusUbuntu Local Security Checks
high
93186SUSE SLES10 Security Update : ntp (SUSE-SU-2016:1912-1)NessusSuSE Local Security Checks
high
92718RHEL 6 : ntp (RHSA-2016:1552)NessusRed Hat Local Security Checks
medium
92571Debian DSA-3629-1 : ntp - security updateNessusDebian Local Security Checks
high
92546Debian DLA-559-1 : ntp security updateNessusDebian Local Security Checks
high
92485GLSA-201607-15 : NTP: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
92113Fedora 22 : ntp (2016-777d838c1b)NessusFedora Local Security Checks
high
91663SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1568-1)NessusSuSE Local Security Checks
high
91644Scientific Linux Security Update : ntp on SL6.x, SL7.x i386/x86_64 (20160531)NessusScientific Linux Local Security Checks
medium
91467Amazon Linux AMI : ntp (ALAS-2016-708)NessusAmazon Linux Local Security Checks
high
91420RHEL 6 / 7 : ntp (RHSA-2016:1141)NessusRed Hat Local Security Checks
medium
91419OracleVM 3.3 / 3.4 : ntp (OVMSA-2016-0082)NessusOracleVM Local Security Checks
medium
91418Oracle Linux 6 / 7 : ntp (ELSA-2016-1141)NessusOracle Linux Local Security Checks
medium
91403openSUSE Security Update : ntp (openSUSE-2016-649)NessusSuSE Local Security Checks
high
91394CentOS 6 / 7 : ntp (CESA-2016:1141)NessusCentOS Local Security Checks
medium
91269openSUSE Security Update : ntp (openSUSE-2016-599)NessusSuSE Local Security Checks
high
91159SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1291-1)NessusSuSE Local Security Checks
high
91120SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1278-1)NessusSuSE Local Security Checks
high
91062Fedora 23 : ntp-4.2.6p5-40.fc23 (2016-5b2eb0bf9c)NessusFedora Local Security Checks
high
90977Fedora 24 : ntp-4.2.6p5-40.fc24 (2016-ed8c6c0426)NessusFedora Local Security Checks
high
90923Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p7 Multiple VulnerabilitiesNessusMisc.
high
90800Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2016-120-01)NessusSlackware Local Security Checks
high
90742FreeBSD : ntp -- multiple vulnerabilities (b2487d9a-0c30-11e6-acd0-d050996490d0)NessusFreeBSD Local Security Checks
high