CVE-2021-38460 : What You Need to Know

A path traversal vulnerability in the Moxa MXview Network Management software Versions 3.x to 3.2.2 may allow an attacker to create or overwrite critical files used to execute code, such as programs or libraries.

Understanding CVE-2021-38460

This CVE pertains to a path traversal vulnerability in Moxa's MXview Network Management Software, potentially leading to code execution by an attacker.

What is CVE-2021-38460?

CVE-2021-38460 involves a path traversal vulnerability in Moxa's MXview Network Management Software, affecting versions 3.x to 3.2.2. Such a flaw could enable threat actors to manipulate critical files for malicious code execution.

The Impact of CVE-2021-38460

The impact of this vulnerability is deemed high, with a CVSS v3.1 base score of 7.5. It poses confidentiality risks to affected systems due to the potential for unauthorized file overwriting and code execution.

Technical Details of CVE-2021-38460

The following technical details shed light on the vulnerability and its implications.

Vulnerability Description

The path traversal flaw in Moxa's MXview Network Management Software lets attackers create or overwrite vital files, allowing them to execute malicious code, posing significant security concerns.

Affected Systems and Versions

The vulnerability affects Moxa's MXview Network Management Software versions 3.x to 3.2.2, creating potential exploitation opportunities for threat actors targeting these specific versions.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating file paths within the software, enabling them to overwrite essential files and execute arbitrary code, leading to severe security breaches.

Mitigation and Prevention

To safeguard systems from CVE-2021-38460, users and organizations are recommended to take the following precautionary measures.

Immediate Steps to Take

Users are advised to upgrade to software package v3.2.4 or higher to mitigate the vulnerability effectively. Additionally, changing Windows passwords regularly and deploying firewalls are crucial steps to bolster system security.

Long-Term Security Practices

Employing reliable firewall configurations that block Port 8883 for multiple-site functions is highly recommended. Users without such requirements should configure the firewall to assign the Accessible IP of MXview at the client site to enhance long-term security.

Patching and Updates

Regularly updating the software with the latest patches and security updates provided by Moxa is essential to maintain robust defense mechanisms against potential vulnerabilities.