cve/2023/CVE-2023-5347.md

### [CVE-2023-5347](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5347)
![](https://img.shields.io/static/v1?label=Product&message=JetNet%20Series&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-347%20Improper%20Verification%20of%20Cryptographic%20Signature&color=brighgreen)

### Description

An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmware version 2024/01.

### POC

#### Reference
- http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html
- http://seclists.org/fulldisclosure/2024/Jan/11
- https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/

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