CVE-2021-2479 : Exploit Details and Defense Strategies

A vulnerability has been identified in the MySQL Server product of Oracle MySQL, specifically in the Server DML component. This vulnerability affects version 8.0.26 and all prior versions, allowing a high privileged attacker with network access to compromise the MySQL Server. Successful exploitation of this vulnerability can lead to a complete denial of service (DOS) attack on the MySQL Server with a CVSS 3.1 Base Score of 4.9.

Understanding CVE-2021-2479

This section will cover the details regarding the CVE-2021-2479 vulnerability.

What is CVE-2021-2479?

CVE-2021-2479 is a vulnerability identified in the MySQL Server product of Oracle MySQL, allowing high privileged attackers with network access to compromise the server.

The Impact of CVE-2021-2479

The impact of CVE-2021-2479 can result in unauthorized ability to cause a hang or frequently repeatable crash of the MySQL Server, leading to a complete denial of service.

Technical Details of CVE-2021-2479

This section will provide technical details related to CVE-2021-2479.

Vulnerability Description

The vulnerability in MySQL Server allows high privileged attackers with network access to compromise the server, resulting in a complete DOS attack.

Affected Systems and Versions

MySQL Server versions 8.0.26 and prior are affected by CVE-2021-2479.

Exploitation Mechanism

Attackers with high privileges and network access can exploit this vulnerability to compromise the MySQL Server.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-2479, immediate steps need to be taken along with long-term security practices.

Immediate Steps to Take

Immediate steps should include applying relevant patches and implementing additional security measures to protect the MySQL Server.

Long-Term Security Practices

Enforcing strict access controls, regular security monitoring, and staying updated with security patches are essential long-term security practices.

Patching and Updates

Regularly applying security patches and updates provided by Oracle Corporation for the MySQL Server is crucial to prevent exploitation of this vulnerability.