CVE-2018-5400 : What You Need to Know

Auto-Maskin products, including DCU-210E, RP-210E, and Marine Pro Observer Android App, are affected by a vulnerability due to an undocumented custom protocol used for Modbus communications.

Understanding CVE-2018-5400

This CVE involves Auto-Maskin products utilizing an undocumented custom protocol for Modbus communications, leading to an origin validation error.

What is CVE-2018-5400?

The vulnerability arises from the lack of device validation in establishing Modbus communications, allowing unauthorized access and potential exploitation by attackers.

The Impact of CVE-2018-5400

The vulnerability enables attackers to send arbitrary messages to DCU or RP devices through network-based spoofing or replay attacks, compromising confidentiality and integrity.

Technical Details of CVE-2018-5400

Auto-Maskin products are susceptible to unauthorized access and potential exploitation due to the following:

Vulnerability Description

Auto-Maskin products use an undocumented custom protocol for Modbus communications without proper device validation.

Affected Systems and Versions

Products affected: DCU-210E, RP-210E, and Marine Pro Observer Android App
Versions affected: Prior to 3.7 on ARMv7

Exploitation Mechanism

Attacker with network access can exploit the vulnerability by sending arbitrary messages through spoofing or replay attacks.

Mitigation and Prevention

Implement the following measures to mitigate the CVE-2018-5400 vulnerability:

Immediate Steps to Take

Ensure devices implement Modbus TCP Security Protocol with encryption and authentication over port 802 TCP.

Long-Term Security Practices

Regularly update devices with the latest security patches and firmware releases.

Patching and Updates

Apply patches provided by Auto-Maskin to address the vulnerability.