CVE-2018-7170

Severity

35%

Complexity

68%

Confidentiality

48%

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.

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 3.0 Base Score 5.3. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 3.5. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:S/C:N/I:P/A:N).

Overview

First reported 6 years ago

2018-03-06 20:29:00

Last updated 5 years ago

2019-10-31 19:15:00

Affected Software

NTP

NTP 4.2.8 Patch 1

4.2.8

NTP 4.2.8 Patch 1-Beta1

4.2.8

NTP 4.2.8 Patch 1-Beta2

4.2.8

NTP 4.2.8 Patch 1-Beta3

4.2.8

NTP 4.2.8 Patch 1-Beta4

4.2.8

NTP 4.2.8 Patch 1-Beta5

4.2.8

NTP 4.2.8 Patch 1-Release Candidate 1

4.2.8

NTP 4.2.8 Patch 1-Release Candidate 2

4.2.8

NTP 4.2.8 Patch 2

4.2.8

NTP 4.2.8 Patch 2-Release Candidate 1

4.2.8

NTP 4.2.8 Patch 2-Release Candidate 2

4.2.8

NTP 4.2.8 Patch 2-Release Candidate 3

4.2.8

NTP 4.2.8 Patch 3

4.2.8

NTP 4.2.8 Patch 3-Release Candidate 1

4.2.8

NTP 4.2.8 Patch 3-Release Candidate 2

4.2.8

NTP 4.2.8 Patch 3-Release Candidate 3

4.2.8

NTP 4.2.8 Patch 4

4.2.8

NTP 4.2.8 Patch 5

4.2.8

NTP 4.2.8 Patch 6

4.2.8

Synology Diskstation Manager

Synology Diskstation Manager 5.2

5.2

Synology Diskstation Manager 6.0

6.0

Synology DiskStation Manager 6.1

6.1

Synology Router Manager 1.1

1.1

Synology SkyNAS

Synology VS960HD

Slackware Linux 14.0

14.0

Slackware Linux 14.1

14.1

Slackware Linux 14.2

14.2

NetApp Element Software

References

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

Third Party Advisory, VDB Entry

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

Third Party Advisory

20180301 [Newsletter/Marketing] [slackware-security] ntp (SSA:2018-060-02)

Third Party Advisory, VDB Entry

103194

Third Party Advisory, VDB Entry

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

Issue Tracking

FreeBSD-SA-18:02

Third Party Advisory

GLSA-201805-12

Third 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-hpesbux03962en_us

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

Third Party Advisory

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