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CVE-2018-7170

MEDIUM

5.3

CVSS Score

Published: March 6, 2018 at 08:00 PM UTC

Updated: June 17, 2026 at 02:02 AM UTC

10 products affected across 4 vendorsSolidfireDiskStation ManagerNTP

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Severity

MEDIUM5.3

Exploit prediction

EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Hpux Ntp · HPE

95%

v < c.4.2.8.4.0

Affected range stops below c.4.2.8.4.0, so it looks safe — our inference, not a vendor statement

95%

All versions

Solidfire · NetApp

95%

All versions

95%

4.2.0 ≤ v < 4.2.84.3.0 ≤ v < 4.3.924.2.8 4.2.8 p1 4.2.8 p1-beta1 4.2.8 p1-beta2 4.2.8 p1-beta3 4.2.8 p1-beta4 4.2.8 p1-beta5 4.2.8 p1-rc1 4.2.8 p1-rc2 4.2.8 p2 4.2.8 p2-rc1 4.2.8 p2-rc2 4.2.8 p2-rc3 4.2.8 p3 4.2.8 p3-rc1 4.2.8 p3-rc2 4.2.8 p3-rc3 4.2.8 p4 4.2.8 p5 4.2.8 p6

Affected range stops below 4.2.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.92, so it looks safe — our inference, not a vendor statement

DiskStation Manager · Synology

95%

5.2 ≤ v < 6.1.6-15266

Affected range stops below 6.1.6-15266, so it looks safe — our inference, not a vendor statement

Router Manager · Synology

95%

1.1 ≤ v < 1.1.6-6931-3

Affected range stops below 1.1.6-6931-3, so it looks safe — our inference, not a vendor statement

Skynas · Synology

95%

v < 6.1.5-15254

Affected range stops below 6.1.5-15254, so it looks safe — our inference, not a vendor statement

Virtual Diskstation Manager · Synology

95%

v < 6.1.6-15266

Affected range stops below 6.1.6-15266, so it looks safe — our inference, not a vendor statement

VS960HD Firmware · Synology

95%

v < 2.2.3-1505

Affected range stops below 2.2.3-1505, so it looks safe — our inference, not a vendor statement

synology-vs960hd (same device)

VS960HD · Synologydevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (10)

x_refsource_MISCThird Party AdvisoryVDB Entry

Source: [email protected]

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

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

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

Mailing Listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry

Source: [email protected]

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

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

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

x_refsource_MISCIssue TrackingThird Party Advisory

Source: [email protected]

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

Vendor Advisoryx_refsource_FREEBSDThird Party Advisory

Source: [email protected]

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

Vendor Advisoryx_refsource_GENTOOThird Party Advisory

Source: [email protected]

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

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

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

CVSS

5.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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