Vulnerability Description
ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ntp | Ntp | >= 4.2.0, < 4.2.8 |
| Synology | Router Manager | >= 1.1, < 1.1.6-6931-3 |
| Synology | Skynas | < 6.1.5-15254 |
| Synology | Virtual Diskstation Manager | < 6.1.6-15266 |
| Synology | Diskstation Manager | >= 5.2, < 6.1.6-15266 |
| Synology | Vs960Hd Firmware | < 2.2.3-1505 |
| Synology | Vs960Hd | - |
| Netapp | Hci | - |
| Netapp | Solidfire | - |
| Hpe | Hpux-Ntp | < c.4.2.8.4.0 |
References
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-UpdaThird Party AdvisoryVDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3415Third Party Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/103194Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1550214Issue TrackingThird Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201805-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180626-0001/Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpeThird Party Advisory
- https://www.synology.com/support/security/Synology_SA_18_13Third Party Advisory
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-UpdaThird Party AdvisoryVDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3415Third Party Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/103194Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1550214Issue TrackingThird Party Advisory
FAQ
What is CVE-2018-7170?
CVE-2018-7170 is a vulnerability with a CVSS score of 5.3 (MEDIUM). ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock sele...
How severe is CVE-2018-7170?
CVE-2018-7170 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-7170?
Check the references section above for vendor advisories and patch information. Affected products include: Ntp Ntp, Synology Router Manager, Synology Skynas, Synology Virtual Diskstation Manager, Synology Diskstation Manager.