cve/2021/CVE-2021-40903.md

### [CVE-2021-40903](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40903)
![](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

A vulnerability in Antminer Monitor 0.50.0 exists because of backdoor or misconfiguration inside a settings file in flask server. Settings file has a predefined secret string, which would be randomly generated, however it is static.

### POC

#### Reference
- https://packetstormsecurity.com/files/164048/Antminer-Monitor-0.5.0-Authentication-Bypass.html
- https://www.exploit-db.com/exploits/50267

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/NaInSec/CVE-PoC-in-GitHub
- https://github.com/SYRTI/POC_to_review
- https://github.com/WhooAmii/POC_to_review
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/trhacknon/Pocingit
- https://github.com/vulnz/CVE-2021-40903
- https://github.com/zecool/cve