CVE-2021-35594 : Exploit Details and Defense Strategies

A vulnerability has been identified in the MySQL Cluster product of Oracle MySQL. An attacker with high privileges can compromise MySQL Cluster, potentially leading to a complete takeover. This article provides an overview of CVE-2021-35594 and its implications.

Understanding CVE-2021-35594

This section delves into the details of the vulnerability, its impact, affected systems, and exploitation mechanisms.

What is CVE-2021-35594?

The vulnerability in Oracle MySQL's MySQL Cluster product allows a high-privileged attacker to compromise the system, potentially resulting in a complete takeover of MySQL Cluster. It is rated with a CVSS 3.1 Base Score of 6.3.

The Impact of CVE-2021-35594

Successful exploitation of this vulnerability could lead to the compromise and takeover of MySQL Cluster. The confidentiality, integrity, and availability of the system are at risk, making it a critical issue.

Technical Details of CVE-2021-35594

This section provides more technical insights into the vulnerability, including its description, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability in MySQL Cluster allows a highly privileged attacker to compromise the system. It requires access to the physical communication segment attached to the MySQL Cluster hardware and human interaction for successful exploitation.

Affected Systems and Versions

The affected versions of MySQL Cluster include 7.4.33 and prior, 7.5.23 and prior, 7.6.19 and prior, and 8.0.26 and prior.

Exploitation Mechanism

To exploit this vulnerability, the attacker needs high privileges and access to the physical communication segment where MySQL Cluster operates. Successful attacks also require human interaction.

Mitigation and Prevention

In response to CVE-2021-35594, immediate steps should be taken to secure MySQL Cluster and prevent unauthorized access.

Immediate Steps to Take

Immediately apply security patches and updates provided by Oracle to address the vulnerability. Restrict access to the physical communication segment to authorized personnel only.

Long-Term Security Practices

Implement strong authentication mechanisms, regularly monitor MySQL Cluster for any suspicious activity, and educate users about potential security risks.

Patching and Updates

Regularly check for security updates and patches released by Oracle for MySQL Cluster to ensure the system is protected against known vulnerabilities.