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CVE-2018-7170

CVE information

Published

4 years ago

Last Modified

2 years ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Low
Base Score
3.5/10
Exploit Score
6.8/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
Single
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
None
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
5.3/10
Exploit Score
1.6/10
Access Vector
Network
Access Complexity
High
Privileges Required
Low
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
None
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
  Yes
4.2.0 4.2.8
cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
  Yes
4.3.0 4.3.92
cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*
  Yes
5.2 6.1.6-15266
cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*
  Yes
1.1 1.1.6-6931-3
cpe:2.3:a:synology:skynas:*:*:*:*:*:*:*:*
  Yes
- 6.1.5-15254
cpe:2.3:a:synology:virtual_diskstation_manager:*:*:*:*:*:*:*
  Yes
- 6.1.6-15266
cpe:2.3:a:netapp:hci:-:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:*
  Yes
- c.4.2.8.4.0