### [CVE-2016-1550](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1550)
![](https://img.shields.io/static/v1?label=Product&message=NTP&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=NTPSec&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=unspecified&color=brighgreen)

### Description

An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.

### POC

#### Reference
- http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
- http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- https://www.kb.cert.org/vuls/id/718152
- https://www.kb.cert.org/vuls/id/718152

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/RedHatSatellite/satellite-host-cve