CVE-2020-5598 : Security Advisory and Response

The TCP/IP function in Mitsubishi Electric GOT2000 series (CoreOS with version -Y and earlier installed in GT27, GT25, and GT23 models) is vulnerable to improper access control, potentially allowing remote attackers to disrupt network functions or execute malicious code.

Understanding CVE-2020-5598

The vulnerability in the TCP/IP function of Mitsubishi Electric GOT2000 series could be exploited by attackers to bypass access restrictions and compromise the affected devices.

What is CVE-2020-5598?

The TCP/IP function within the firmware of Mitsubishi Electric GOT2000 series, specifically in CoreOS with version -Y and earlier installed in GT27, GT25, and GT23 models, contains a security flaw related to improper access control.

The Impact of CVE-2020-5598

This vulnerability could enable a remote attacker to circumvent access controls, leading to potential disruption of network services on the affected products or the execution of malicious code through specially crafted packets.

Technical Details of CVE-2020-5598

The technical aspects of the CVE-2020-5598 vulnerability are as follows:

Vulnerability Description

The vulnerability lies in the TCP/IP function of Mitsubishi Electric GOT2000 series due to improper access control mechanisms.

Affected Systems and Versions

Product: GOT2000 series GT27, GT25, and GT23
Vendor: Mitsubishi Electric Corporation
Vulnerable Version: CoreOS with version -Y and earlier installed in GT27, GT25, and GT23 models

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted packets to the affected devices, allowing them to bypass access restrictions and potentially execute malicious actions.

Mitigation and Prevention

To address CVE-2020-5598, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches provided by Mitsubishi Electric Corporation promptly.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and software to ensure the latest security fixes are in place.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from Mitsubishi Electric Corporation and apply patches as soon as they are available.