CVEs-PoC/2020/CVE-2020-13872.md

### [CVE-2020-13872](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13872)
![](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

Royal TS before 5 has a 0.0.0.0 listener, which makes it easier for attackers to bypass tunnel authentication via a brute-force approach.

### POC

#### Reference
- http://packetstormsecurity.com/files/158000/RoyalTS-SSH-Tunnel-Authentication-Bypass.html
- http://seclists.org/fulldisclosure/2020/Jun/14

#### Github
- https://github.com/alphaSeclab/sec-daily-2020