CVE-2023-2062 : Vulnerability Insights and Analysis

This CVE-2023-2062 involves an Information Disclosure vulnerability in Mitsubishi Electric Corporation's EtherNet/IP configuration tools. It poses a risk of authentication bypass, allowing unauthorized access to specific EtherNet/IP modules via FTP.

Understanding CVE-2023-2062

The vulnerability identified in CVE-2023-2062 pertains to a security flaw in the EtherNet/IP configuration tools developed by Mitsubishi Electric Corporation. It enables remote unauthenticated attackers to discern the password for certain MELSEC iQ-R Series and MELSEC iQ-F Series EtherNet/IP modules, potentially leading to an authentication bypass issue and unauthorized access.

What is CVE-2023-2062?

CVE-2023-2062 highlights a Missing Password Field Masking vulnerability in Mitsubishi Electric Corporation's EtherNet/IP configuration tools, namely SW1DNN-EIPCT-BD and SW1DNN-EIPCTFX5-BD. The flaw allows attackers to uncover passwords for specific EtherNet/IP modules, paving the way for unauthorized access opportunities.

The Impact of CVE-2023-2062

The impact of CVE-2023-2062 is categorized as an "Information Disclosure" vulnerability. It signifies the potential risk of sensitive information disclosure, particularly in relation to authentication credentials, which could be exploited by malicious actors for unauthorized system access.

Technical Details of CVE-2023-2062

The vulnerability is assigned a CVSSv3.1 base score of 6.2, indicating a medium severity level. The attack complexity is rated as LOW, with an attack vector of LOCAL. The exploit does not require any special privileges, user interaction, or availability impact. The confidentiality impact is deemed HIGH, while integrity impact and privileges required are considered NONE.

Vulnerability Description

The Missing Password Field Masking vulnerability in Mitsubishi Electric Corporation's EtherNet/IP configuration tools allows remote unauthenticated attackers to unveil passwords, leading to an authentication bypass issue and unauthorized access to specific EtherNet/IP modules.

Affected Systems and Versions

The vulnerability affects the following products:

EtherNet/IP Configuration tool for RJ71EIP91 SW1DNN-EIPCT-BD
EtherNet/IP Configuration tool for FX5-ENET/IP SW1DNN-EIPCTFX5-BD

Exploitation Mechanism

The vulnerability enables remote unauthenticated attackers to discover passwords for MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP. This knowledge can be used to bypass authentication and gain unauthorized access to these modules via FTP.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2023-2062 and implement long-term security practices to safeguard against such vulnerabilities in the future.

Immediate Steps to Take

Mitsubishi Electric Corporation users should update their EtherNet/IP configuration tools to the latest patched versions that address this vulnerability.
Implement strong and unique passwords for all sensitive accounts to minimize the risk of unauthorized access.
Monitor network traffic and access logs for any suspicious activity related to EtherNet/IP modules.

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent known vulnerabilities from being exploited.
Conduct security assessments and penetration testing to identify and address potential security weaknesses proactively.
Educate users on cybersecurity best practices, including password hygiene and safe network usage.

Patching and Updates

Users are advised to refer to the official Mitsubishi Electric Corporation security advisories and apply the necessary patches to secure their systems against the Information Disclosure vulnerability in the EtherNet/IP configuration tools.