CVE-2020-5648 : Security Advisory and Response

A vulnerability in the TCP/IP function of Mitsubishi Electric Corporation's GT14 Model of GOT 1000 series could allow unauthenticated attackers to disrupt network functions.

Understanding CVE-2020-5648

What is CVE-2020-5648?

The CVE-2020-5648 vulnerability involves an 'Argument Injection' issue due to improper neutralization of argument delimiters in a command within the firmware of specific GT14 models.

The Impact of CVE-2020-5648

The vulnerability enables attackers on the same network to halt the network functions of affected products using a specially crafted packet.

Technical Details of CVE-2020-5648

Vulnerability Description

The flaw arises from improper handling of argument delimiters in a command, leading to a network disruption risk.

Affected Systems and Versions

Product: GT14 Model of GOT 1000 series
Versions: GT1455-QTBDE CoreOS version '05.65.00.BD' and earlier, GT1450-QMBDE CoreOS version '05.65.00.BD' and earlier, GT1450-QLBDE CoreOS version '05.65.00.BD' and earlier, GT1455HS-QTBDE CoreOS version '05.65.00.BD' and earlier, GT1450HS-QMBDE CoreOS version '05.65.00.BD' and earlier

Exploitation Mechanism

The vulnerability can be exploited by unauthenticated attackers on the same network through a specifically crafted packet to disrupt network operations.

Mitigation and Prevention

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 activities.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Ensure that all affected systems are updated with the latest firmware and security patches to mitigate the CVE-2020-5648 vulnerability.