cve/2018/CVE-2018-12543.md

### [CVE-2018-12543](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12543)
![](https://img.shields.io/static/v1?label=Product&message=Eclipse%20Mosquitto&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D%201.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-617%3A%20Reachable%20Assertion&color=brighgreen)

### Description

In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Dmitriy-area51/Pentest-CheckList-MQTT
- https://github.com/souravbaghz/MQTTack