CVE-2020-5545 : What You Need to Know

Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows remote attackers to bypass access restrictions, stop network functions, or execute malware via a specially crafted packet.

Understanding CVE-2020-5545

This CVE involves a vulnerability in the TCP function of Mitsubishi Electric MELQIC IU1 series firmware.

What is CVE-2020-5545?

The TCP function in the affected firmware version enables remote attackers to circumvent access restrictions and potentially disrupt network operations or introduce malicious code.

The Impact of CVE-2020-5545

The vulnerability poses a significant risk as attackers can exploit it to compromise the integrity and availability of the affected systems.

Technical Details of CVE-2020-5545

The following technical aspects are associated with this CVE:

Vulnerability Description

The flaw allows unauthorized individuals to manipulate network functions by sending a specifically crafted packet.

Affected Systems and Versions

Product: Mitsubishi Electric MELQIC IU1 series
Vendor: Mitsubishi Electric Corporation
Versions Affected: IU1-1M20-D firmware version 1.0.7 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by sending a malicious packet to the target system, bypassing access controls.

Mitigation and Prevention

To address CVE-2020-5545, consider the following steps:

Immediate Steps to Take

Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity that may indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update firmware and security patches to protect against known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses in the system.

Patching and Updates

Apply patches provided by Mitsubishi Electric Corporation to address the vulnerability in the affected firmware version.