CVE-2023-0027 : Vulnerability Insights and Analysis
CVE-2023-0027 involves unauthorized access to sensitive information in Rockwell Modbus TCP Server AOI. Learn about impact, technical details, affected systems, and mitigation steps.
This CVE-2023-0027, assigned by Rockwell, was published on March 17, 2023. It pertains to a vulnerability in Rockwell Automation Modbus TCP Server Add On Instructions.
Understanding CVE-2023-0027
This vulnerability allows an unauthorized user to send a malformed message to the Modbus TCP Server, leading the controller to respond with a copy of the most recent response. If exploited, this could enable unauthorized access to the connected device's Modbus TCP Server AOI information.
What is CVE-2023-0027?
CVE-2023-0027 involves unauthorized access to sensitive information due to a vulnerability in Rockwell Automation Modbus TCP Server AOI.
The Impact of CVE-2023-0027
The impact of CVE-2023-0027 is categorized under CAPEC-117 (Interception), highlighting the risk of unauthorized parties gaining access to sensitive data.
Technical Details of CVE-2023-0027
The vulnerability described in CVE-2023-0027 is characterized by a CVSS v3.1 base score of 5.3, with a medium severity level. The attack vector is through a network with low attack complexity, requiring no privileges from the user.
Vulnerability Description
The issue lies in the Modbus TCP Server AOI prior to version 2.04.00, allowing unauthorized users to retrieve sensitive information by triggering a specific response from the controller.
Affected Systems and Versions
The affected product is the Rockwell Automation Modbus TCP Server Add On Instructions in versions 2.00.00 to 2.00.03.
Exploitation Mechanism
Exploitation of this vulnerability involves sending a malformed message to the server, triggering a response that leaks sensitive data, potentially compromising the security of connected devices.
Mitigation and Prevention
To mitigate the CVE-2023-0027 vulnerability, immediate action and long-term security practices are recommended.
Immediate Steps to Take
Customers are advised to update their software to versions 2.04.00 and later as a preventive measure to address this vulnerability.
Long-Term Security Practices
Implementing robust security measures, monitoring network activity, and regular software updates can help enhance overall cybersecurity posture.
Patching and Updates
Regularly applying software patches and updates provided by Rockwell Automation is crucial to safeguard against potential vulnerabilities and maintain system integrity.