CVE-2020-12117 : Vulnerability Insights and Analysis

Moxa Service in Moxa NPort 5150A firmware version 1.5 and earlier allows attackers to obtain sensitive configuration values via a crafted packet to UDP port 4800. This CVE was made public on April 29, 2020.

Understanding CVE-2020-12117

This CVE identifies a vulnerability in Moxa NPort 5150A firmware that can be exploited to access sensitive configuration data.

What is CVE-2020-12117?

The vulnerability in Moxa NPort 5150A firmware allows unauthorized access to critical configuration values through a specific packet sent to UDP port 4800.

The Impact of CVE-2020-12117

Exploiting this vulnerability can lead to unauthorized access to sensitive information, potentially compromising the security and integrity of the affected systems.

Technical Details of CVE-2020-12117

Moxa NPort 5150A firmware version 1.5 and earlier are susceptible to this security flaw.

Vulnerability Description

The vulnerability allows attackers to retrieve sensitive configuration values by sending a specially crafted packet to UDP port 4800.

Affected Systems and Versions

Product: Moxa NPort 5150A
Versions: Firmware version 1.5 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a malicious packet to UDP port 4800, enabling them to access critical configuration data.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Disable the Moxa Service if not required to mitigate the risk of unauthorized access.
Implement firewall rules to restrict access to UDP port 4800.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Apply patches and updates provided by Moxa to fix the vulnerability and enhance system security.