CVE-2021-2122 : Vulnerability Insights and Analysis

A vulnerability has been identified in Oracle MySQL Server, specifically in the Server: DDL component. The affected versions include 8.0.22 and earlier, allowing a high-privileged attacker with network access to compromise the server. This vulnerability could lead to a denial of service (DOS) attack.

Understanding CVE-2021-2122

This section delves into the details of the CVE-2021-2122 vulnerability.

What is CVE-2021-2122?

The CVE-2021-2122 vulnerability resides in the MySQL Server product of Oracle MySQL, affecting versions 8.0.22 and prior. It allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server.

The Impact of CVE-2021-2122

Successful exploitation of this vulnerability can enable an unauthorized attacker to cause a hang or frequently repeatable crash, resulting in a complete denial of service (DOS) of the MySQL Server. The CVSS 3.1 Base Score is 4.9, indicating high availability impacts.

Technical Details of CVE-2021-2122

In this section, we explore the technical aspects of CVE-2021-2122.

Vulnerability Description

The vulnerability in MySQL Server allows a high-privileged attacker with network access to compromise the server, potentially leading to a DOS attack.

Affected Systems and Versions

Oracle MySQL Server versions 8.0.22 and earlier are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by a high-privileged attacker with network access through multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

To address CVE-2021-2122, it is crucial to implement the following measures.

Immediate Steps to Take

Update MySQL Server to the latest version
Implement network security controls to prevent unauthorized access

Long-Term Security Practices

Regularly monitor and audit MySQL Server for unusual activities
Conduct security awareness training for staff on best practices

Patching and Updates

Stay informed about security patches and updates released by Oracle for MySQL Server to mitigate the risk of exploitation.