cve/2023/CVE-2023-33920.md

### [CVE-2023-33920](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-33920)
![](https://img.shields.io/static/v1?label=Product&message=CP-8031%20MASTER%20MODULE&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=CP-8050%20MASTER%20MODULE&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20All%20versions%20%3C%20CPCI85%20V05%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-798%3A%20Use%20of%20Hard-coded%20Credentials&color=brighgreen)

### Description

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). The affected devices contain the hash of the root password in a hard-coded form, which could be exploited for UART console login to the device. An attacker with direct physical access could exploit this vulnerability.

### POC

#### Reference
- http://packetstormsecurity.com/files/173370/Siemens-A8000-CP-8050-CP-8031-Code-Execution-Command-Injection.html
- http://seclists.org/fulldisclosure/2023/Jul/14

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