cve/2021/CVE-2021-27249.md

### [CVE-2021-27249](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27249)
![](https://img.shields.io/static/v1?label=Product&message=DAP-2020&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=v1.01rc001%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-78%3A%20Improper%20Neutralization%20of%20Special%20Elements%20used%20in%20an%20OS%20Command%20('OS%20Command%20Injection')&color=brightgreen)

### Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11369.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Alonzozzz/alonzzzo
- https://github.com/EdgeSecurityTeam/Vulnerability
- https://github.com/SexyBeast233/SecBooks
- https://github.com/tzwlhack/Vulnerability