CVE-2021-35584 : Exploit Details and Defense Strategies

A vulnerability has been identified in Oracle MySQL Cluster that affects versions 8.0.26 and prior. This vulnerability could allow a low privileged attacker with network access to compromise MySQL Cluster, leading to a partial denial of service.

Understanding CVE-2021-35584

This section will provide insights into the nature of the CVE-2021-35584 vulnerability.

What is CVE-2021-35584?

The vulnerability in the MySQL Cluster product of Oracle MySQL allows attackers with network access to compromise the system, potentially causing a partial denial of service. The affected versions are 8.0.26 and earlier.

The Impact of CVE-2021-35584

Successful exploitation of this vulnerability can grant unauthorized individuals the ability to disrupt the availability of MySQL Cluster. The CVSS 3.1 Base Score for this vulnerability is 4.3, indicating medium severity with low privileges required.

Technical Details of CVE-2021-35584

In this section, we delve into the technical aspects of CVE-2021-35584.

Vulnerability Description

The vulnerability lies in the Cluster: ndbcluster/plugin DDL component of MySQL Cluster. Attackers with network access through various protocols can exploit this flaw.

Affected Systems and Versions

The vulnerability affects Oracle MySQL Cluster versions 8.0.26 and all versions prior to it.

Exploitation Mechanism

Low privileged attackers with network access can leverage this vulnerability to compromise MySQL Cluster, potentially leading to a partial denial of service.

Mitigation and Prevention

To safeguard your system from the CVE-2021-35584 vulnerability, consider the following measures.

Immediate Steps to Take

Promptly apply security patches provided by Oracle to address this vulnerability. Ensure that access to MySQL Cluster is restricted to only authorized personnel.

Long-Term Security Practices

Implement a robust network security policy, regularly monitor for any unusual activities, and conduct security awareness training for all personnel accessing the MySQL Cluster.

Patching and Updates

Stay informed about security updates released by Oracle for the MySQL Cluster product. Regularly apply patches and updates to mitigate the risk of exploitation.