CVE-2021-32974 : Exploit Details and Defense Strategies

A detailed description of CVE-2021-32974 outlining the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2021-32974

This section provides an in-depth look into the vulnerability tracked under CVE-2021-32974 in Moxa NPort IAW5000A-I/O Series Serial Device Server.

What is CVE-2021-32974?

The CVE-2021-32974 vulnerability is due to improper input validation in the built-in web server of Moxa NPort IAW5000A-I/O series firmware versions 2.2 or earlier. This flaw may allow a remote attacker to execute arbitrary commands.

The Impact of CVE-2021-32974

The vulnerability has a CVSS base score of 9.8, categorizing it as critical. It poses a high risk to confidentiality, integrity, and availability, with no privileges required for exploitation and a low attack complexity.

Technical Details of CVE-2021-32974

This section delves into the specific technical aspects of the CVE-2021-32974 vulnerability.

Vulnerability Description

The vulnerability stems from improper input validation in the web server of Moxa NPort IAW5000A-I/O series firmware versions 2.2 or earlier, opening the door for remote code execution.

Affected Systems and Versions

Moxa NPort IAW5000A-I/O series firmware versions 2.2 or earlier are susceptible to this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability through the built-in web server of the affected Moxa devices, potentially leading to command execution.

Mitigation and Prevention

This section covers the necessary steps to mitigate the risks associated with CVE-2021-32974.

Immediate Steps to Take

Users are advised to contact Moxa Technical Support for security patches addressing this vulnerability. Additionally, following security advisories from Moxa for guidance is recommended.

Long-Term Security Practices

Implementing network segmentation, access controls, and regular security updates can enhance the overall security posture and help prevent such vulnerabilities.

Patching and Updates

Regularly applying patches and updates released by Moxa is crucial to remediate CVE-2021-32974 and strengthen the security of the affected devices.