CVE-2021-35593 : Security Advisory and Response

A vulnerability has been identified in the MySQL Cluster product of Oracle MySQL, affecting versions 7.4.33 and prior, 7.5.23 and prior, 7.6.19 and prior, and 8.0.26 and prior. The vulnerability allows a high privileged attacker to compromise MySQL Cluster, potentially leading to a takeover.

Understanding CVE-2021-35593

This section provides an overview of the CVE-2021-35593 vulnerability in Oracle MySQL's MySQL Cluster product.

What is CVE-2021-35593?

The vulnerability in MySQL Cluster allows a high privileged attacker with access to the physical communication segment to compromise the system, potentially resulting in a complete takeover of MySQL Cluster.

The Impact of CVE-2021-35593

Successful exploitation of this vulnerability can lead to a compromise of the confidentiality, integrity, and availability of MySQL Cluster, posing a significant risk to affected systems. The CVSS 3.1 Base Score is 6.3, indicating a medium severity level.

Technical Details of CVE-2021-35593

This section delves into the technical aspects of the CVE-2021-35593 vulnerability.

Vulnerability Description

The vulnerability is challenging to exploit and requires human interaction from a third party. An attacker needs access to the physical communication segment to execute a successful attack, potentially resulting in a complete takeover of MySQL Cluster.

Affected Systems and Versions

Oracle MySQL versions 7.4.33 and prior, 7.5.23 and prior, 7.6.19 and prior, and 8.0.26 and prior are all affected by this vulnerability in the MySQL Cluster product.

Exploitation Mechanism

The exploitation of this vulnerability requires a high level of privileges and access to the physical communication segment attached to the hardware where MySQL Cluster runs. Successful attacks involve human interaction from a person other than the attacker.

Mitigation and Prevention

In this section, you will find strategies to mitigate and prevent the CVE-2021-35593 vulnerability.

Immediate Steps to Take

It is crucial to apply security patches from Oracle Corporation to address the vulnerability in MySQL Cluster. Organizations should restrict access to the physical communication segment to authorized personnel only.

Long-Term Security Practices

Regularly updating MySQL Cluster to the latest versions can help mitigate potential risks associated with known vulnerabilities. Training employees on security best practices and conducting security audits can enhance the overall security posture.

Patching and Updates

Staying informed about security alerts and updates from Oracle Corporation is essential. Timely application of patches and security updates can help protect systems from potential exploits.