cve/2023/CVE-2023-0027.md

### [CVE-2023-0027](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0027)
![](https://img.shields.io/static/v1?label=Product&message=Modbus%20TCP%20Server%20Add%20On%20Instructions&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%202.00.00%20-%202.00.03%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-200%20Exposure%20of%20Sensitive%20Information%20to%20an%20Unauthorized%20Actor&color=brighgreen)

### Description

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected device’s Modbus TCP Server AOI information.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/karimhabush/cyberowl