CVE-2020-5546 Explained : Impact and Mitigation
Learn about CVE-2020-5546, an 'Improper Neutralization of Argument Delimiters in a Command' vulnerability in Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware. Find out the impact, affected systems, and mitigation steps.
A vulnerability in the TCP function of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier could allow an attacker to disrupt network functions or execute malware.
Understanding CVE-2020-5546
This CVE involves an 'Improper Neutralization of Argument Delimiters in a Command' vulnerability in the TCP function of specific firmware versions.
What is CVE-2020-5546?
The vulnerability allows an attacker on the same network segment to disrupt network operations or execute malicious code by sending a specially crafted packet.
The Impact of CVE-2020-5546
Exploitation of this vulnerability could lead to severe consequences, including network downtime and the execution of unauthorized code.
Technical Details of CVE-2020-5546
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from improper neutralization of argument delimiters in a command within the TCP function of the affected firmware.
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 by crafting and sending specific packets to the target device on the same network segment.
Mitigation and Prevention
Protecting systems from CVE-2020-5546 requires immediate actions and long-term security measures.
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 mitigate known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address weaknesses.
- Educate network users on best practices to prevent social engineering attacks.
Patching and Updates
Regularly check for firmware updates and security advisories from Mitsubishi Electric Corporation to apply patches that address CVE-2020-5546.