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CVE-2018-7170

CVE information

Published

6 years ago

Last Modified

3 years ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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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:4.2.8:p2-rc3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
  Yes
4.3.0 4.3.92
cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
  Yes
4.2.0 4.2.8
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

References