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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2018-7170

CVE-2018-7170

MEDIUM5.3

ntpd in ntp 4

Published Mar 6, 2018

Modified 1 years ago

Details

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.

References

http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html

http://support.ntp.org/bin/view/Main/NtpBug3415

http://www.securityfocus.com/archive/1/541824/100/0/threaded

http://www.securityfocus.com/bid/103194

https://bugzilla.redhat.com/show_bug.cgi?id=1550214

https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc

https://security.gentoo.org/glsa/201805-12

https://security.netapp.com/advisory/ntap-20180626-0001/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us

https://www.cve.org/CVERecord?id=CVE-2018-7170

https://www.synology.com/support/security/Synology_SA_18_13

CVSS Analysis

CVSS v3.1

5.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

HighI:H

Availability

NoneA:N

5.3/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Ecosystems

Timeline

PublishedMar 6, 2018

ModifiedAug 5, 2024

CVE-2018-7170 | Mondoo Vulnerability Intelligence