### [CVE-2021-28152](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28152)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzxmn.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/0day404/vulnerability-poc
- https://github.com/20142995/nuclei-templates
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ArrestX/--POC
- https://github.com/KayCHENvip/vulnerability-poc
- https://github.com/Miraitowa70/POC-Notes
- https://github.com/SexyBeast233/SecBooks
- https://github.com/Threekiii/Awesome-POC
- https://github.com/XiaomingX/awesome-poc-for-red-team
- https://github.com/bigblackhat/oFx
- https://github.com/cyb3r-w0lf/nuclei-template-collection
- https://github.com/d4n-sec/d4n-sec.github.io
- https://github.com/openx-org/BLEN
- https://github.com/rojasjo/TelnetHoneypot.Net