CVE-2023-6448 : Security Advisory and Response

This CVE record was published on December 5, 2023, by CISA-CG regarding a vulnerability identified as CVE-2023-6448 in Unitronics VisiLogic software before version 9.9.00. This vulnerability can be exploited by an unauthenticated attacker with network access to take control of a system.

Understanding CVE-2023-6448

Unitronics VisiLogic software, utilized in Vision and Samba PLCs and HMIs, contains a default administrative password that can be exploited by attackers to gain unauthorized administrative control.

What is CVE-2023-6448?

CVE-2023-6448 is a vulnerability found in Unitronics VisiLogic software before version 9.9.00, allowing unauthenticated attackers with network access to take over vulnerable systems due to the use of a default administrative password.

The Impact of CVE-2023-6448

The impact of this vulnerability is rated as critical with a base CVSS score of 9.8. Attackers can exploit this flaw to achieve high impacts on confidentiality, integrity, and availability of the affected systems without requiring any special privileges.

Technical Details of CVE-2023-6448

This section provides a deeper look into the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

Unitronics VisiLogic software before version 9.9.00 uses a default administrative password, enabling unauthorized individuals to take control of the system without authentication.

Affected Systems and Versions

The vulnerability affects Unitronics VisiLogic software versions prior to 9.9.00, specifically impacting Vision and Samba PLCs and HMIs.

Exploitation Mechanism

An unauthenticated attacker with network access can exploit the default administrative password in Unitronics VisiLogic software to gain administrative control over vulnerable systems.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2023-6448, organizations should take immediate action while adopting long-term security practices and applying necessary patches and updates.

Immediate Steps to Take

Immediately change the default administrative password in Unitronics VisiLogic software to a secure, unique password to mitigate the risk of unauthorized access.

Long-Term Security Practices

Implement robust security measures such as regular password updates, network segmentation, and access controls to enhance the security posture of the systems using Unitronics VisiLogic software.

Patching and Updates

Ensure that all affected systems are updated to version 9.9.00 or higher to eliminate the default administrative password vulnerability in Unitronics VisiLogic software. Regularly check for software updates and security advisories from Unitronics to stay protected against potential threats.

By following these mitigation and prevention strategies, organizations can mitigate the risks associated with CVE-2023-6448 and enhance the security of their industrial control systems.