cve/2018/CVE-2018-7170.md

### [CVE-2018-7170](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7170)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### 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.

### POC

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

#### Github
No PoCs found on GitHub currently.