CVEs-PoC/2021/CVE-2021-33535.md

### [CVE-2021-33535](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33535)
![](https://img.shields.io/static/v1?label=Product&message=IE-WL(T)-BL-AP-CL-XX&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=IE-WL(T)-VL-AP-CL-XX&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=IE-WL-BL-AP-CL-EU%20(2536600000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WL-BL-AP-CL-US%20(2536660000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WL-VL-AP-BR-CL-EU%20(2536680000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WL-VL-AP-BR-CL-US%20(2536700000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WLT-BL-AP-CL-EU%20(2536650000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WLT-BL-AP-CL-US%20(2536670000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WLT-VL-AP-BR-CL-EU%20(2536690000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=IE-WLT-VL-AP-BR-CL-US%20(2536710000)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-134%20Use%20of%20Externally-Controlled%20Format%20String&color=brightgreen)

### Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable format string vulnerability exists in the iw_console conio_writestr functionality. A specially crafted time server entry can cause an overflow of the time server buffer, resulting in remote code execution. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

### POC

#### Reference
- https://cert.vde.com/en-us/advisories/vde-2021-026

#### Github
No PoCs found on GitHub currently.