CVE-2023-27396 Explained : Impact and Mitigation

This CVE record pertains to security issues found in multiple OMRON products that implement the FINS (Factory Interface Network Service) protocol. The vulnerabilities include plaintext communication and the absence of authentication requirements, potentially allowing for interception of FINS messages, retrieval of contents, execution of arbitrary commands, or retrieval of system information on affected devices.

Understanding CVE-2023-27396

The CVE-2023-27396 highlights vulnerabilities within OMRON products utilizing the FINS protocol, impacting the security of Factory Automation networks.

What is CVE-2023-27396?

CVE-2023-27396 identifies security flaws in the FINS protocol implementations across various OMRON products, creating risks of unauthorized access and information retrieval.

The Impact of CVE-2023-27396

The vulnerabilities in the affected OMRON products expose them to potential exploitation by malicious actors, leading to unauthorized access, command execution, and data retrieval.

Technical Details of CVE-2023-27396

The security issues in OMRON products utilizing the FINS protocol are significant due to their potential impact on Factory Automation networks.

Vulnerability Description

The vulnerabilities include plaintext communication and lack of authentication, enabling interception of FINS messages and execution of unauthorized commands.

Affected Systems and Versions

Affected OMRON products include SYSMAC CS-series, CJ-series, CP-series, NJ-series, NX1P-series, NX102-series CPU Units, and NX7 Database Connection CPU Units (Ver.1.16 or later).

Exploitation Mechanism

Exploiting the vulnerabilities in the FINS protocol implementation can result in unauthorized access to systems, command execution, and potential data exfiltration from affected devices.

Mitigation and Prevention

Addressing the vulnerabilities in OMRON products utilizing the FINS protocol is crucial to securing Factory Automation networks.

Immediate Steps to Take

Implement network segmentation, encryption, and access controls to mitigate the risk of unauthorized access and data interception in affected systems.

Long-Term Security Practices

Regular security assessments, firmware updates, and employee training on secure communication practices are essential for maintaining the integrity of Factory Automation networks.

Patching and Updates

OMRON should release patches to address the security flaws in the FINS protocol implementations across the impacted product lines, ensuring enhanced security for users.