CVE-2021-27458 : Security Advisory and Response

This CVE affects JTEKT Corporation TOYOPUC products which are vulnerable to an attack that could disrupt Ethernet communication with other devices. Learn more about the impact, technical details, and mitigation strategies below.

Understanding CVE-2021-27458

This section provides details on the vulnerability affecting JTEKT Corporation TOYOPUC products.

What is CVE-2021-27458?

If an attacker leaves Ethernet communication of JTEKT Corporation TOYOPUC products in an open state, it can disrupt communication with other devices based on the link parameters.

The Impact of CVE-2021-27458

The impact involves the inability to establish Ethernet communication with other devices due to the settings of the link parameters.

Technical Details of CVE-2021-27458

Explore the technical specifics of the CVE, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability allows an attacker to disrupt Ethernet communication within the TOYOPUC product series, causing connectivity issues with other devices.

Affected Systems and Versions

TOYOPUC-PC10, TOYOPUC-Plus, and TOYOPUC-PC3J/PC2J Series are among the affected systems and versions.

Exploitation Mechanism

By leaving Ethernet communication open, an attacker can exploit the vulnerability and disrupt the connection to other devices.

Mitigation and Prevention

Discover the steps to mitigate the CVE's impact and prevent future vulnerabilities.

Immediate Steps to Take

Ensure that Ethernet communication settings are properly configured to prevent unauthorized access and disruptions.

Long-Term Security Practices

Regularly update firmware and implement network segmentation to enhance overall system security.

Patching and Updates

Install patches released by JTEKT Corporation to address the vulnerability and improve the security posture.