CVE-2020-5644 : Exploit Details and Defense Strategies

A buffer overflow vulnerability in the TCP/IP function of Mitsubishi Electric Corporation's GT14 Model of GOT 1000 series allows remote attackers to disrupt network functions or execute malicious code.

Understanding CVE-2020-5644

This CVE involves a critical buffer overflow issue in specific versions of Mitsubishi Electric Corporation's GT14 Model of GOT 1000 series.

What is CVE-2020-5644?

The vulnerability in the firmware of GT14 Model of GOT 1000 series enables remote unauthenticated attackers to halt network operations or run malicious programs through specially crafted packets.

The Impact of CVE-2020-5644

The exploit could lead to severe consequences, including network disruption and unauthorized execution of code, posing a significant risk to affected systems.

Technical Details of CVE-2020-5644

This section delves into the technical aspects of the CVE.

Vulnerability Description

The buffer overflow vulnerability in the TCP/IP function of the GT14 Model of GOT 1000 series firmware allows attackers to exploit the system through crafted packets.

Affected Systems and Versions

Product: GT14 Model of GOT 1000 series
Vendor: Mitsubishi Electric Corporation
Vulnerable 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 remotely by sending specially crafted packets to the affected devices, triggering the buffer overflow and potentially leading to network disruption or unauthorized code execution.

Mitigation and Prevention

Protecting systems from CVE-2020-5644 is crucial to prevent potential exploitation and damage.

Immediate Steps to Take

Apply 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 address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Stay informed about security advisories from Mitsubishi Electric Corporation.
Ensure timely installation of security patches to mitigate the vulnerability effectively.