cve/2023/CVE-2023-4473.md

### [CVE-2023-4473](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4473)
![](https://img.shields.io/static/v1?label=Product&message=NAS326%20firmware&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=NAS542%20firmware&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20V5.21(AAZF.14)C0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20V5.21(ABAG.11)C0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-78%20Improper%20Neutralization%20of%20Special%20Elements%20used%20in%20an%20OS%20Command%20('OS%20Command%20Injection')&color=brighgreen)

### Description

A command injection vulnerability in the web server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.

### POC

#### Reference
- https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/

#### Github
- https://github.com/Tig3rHu/Awesome_IOT_Vul_lib