cve/2021/CVE-2021-20091.md

### [CVE-2021-20091](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20091)
![](https://img.shields.io/static/v1?label=Product&message=Buffalo%20WSR-2533DHPL2%2C%20Buffalo%20WSR-2533DHP3&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Static%20Code%20Injection&color=brighgreen)

### Description

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.

### POC

#### Reference
- https://www.tenable.com/security/research/tra-2021-13

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates