CVE-2019-18238 : Security Advisory and Response

Sensitive information in configuration files is stored without encryption in the firmware of Moxa ioLogik 2500 series, specifically in Version 3.0 or earlier, as well as in the IOxpress configuration utility, specifically in Version 2.3.0 or earlier. This lack of encryption could potentially enable unauthorized access to an administrative account by a malicious attacker.

Understanding CVE-2019-18238

This CVE involves the cleartext storage of sensitive information in Moxa ioLogik 2500 series firmware and the IOxpress configuration utility, potentially leading to unauthorized access.

What is CVE-2019-18238?

CVE-2019-18238 refers to the vulnerability in Moxa ioLogik 2500 series firmware, Version 3.0 or lower, and IOxpress configuration utility, Version 2.3.0 or lower, where sensitive information is stored without encryption in configuration files.

The Impact of CVE-2019-18238

The lack of encryption in storing sensitive information could allow malicious actors to gain unauthorized access to administrative accounts, posing a significant security risk.

Technical Details of CVE-2019-18238

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability involves the cleartext storage of sensitive information in configuration files, making it accessible to attackers without encryption.

Affected Systems and Versions

Moxa ioLogik 2500 series firmware, Version 3.0 or lower
IOxpress configuration utility, Version 2.3.0 or lower

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing the configuration files containing sensitive information without encryption, potentially leading to unauthorized access to administrative accounts.

Mitigation and Prevention

Protecting systems from CVE-2019-18238 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to the latest firmware versions that address the encryption issue
Implement strong access controls and authentication mechanisms
Monitor system logs for any unauthorized access attempts

Long-Term Security Practices

Regularly review and update security configurations
Conduct security training for personnel to enhance awareness of data protection
Perform regular security audits and vulnerability assessments

Patching and Updates

Apply patches and updates provided by Moxa for the affected firmware and configuration utility
Stay informed about security advisories and best practices to prevent similar vulnerabilities in the future