CVE-2021-2170 : What You Need to Know

A vulnerability has been identified in Oracle MySQL Server that affects versions 8.0.23 and prior. The flaw, with a CVSS 3.1 Base Score of 4.9, allows a high privileged attacker to compromise the MySQL Server, potentially leading to a Denial of Service (DOS) attack.

Understanding CVE-2021-2170

This section will provide insights into the nature of the vulnerability, its impact, affected systems, and exploitation details.

What is CVE-2021-2170?

The vulnerability in Oracle MySQL Server, specifically in the Server Optimizer component, allows unauthorized access to compromise the server by exploiting network access via multiple protocols.

The Impact of CVE-2021-2170

Successful exploitation of this vulnerability can result in a high privileged attacker causing a hang or repeatable crash (DOS) of the MySQL Server, potentially disrupting operations.

Technical Details of CVE-2021-2170

Let's delve into the technical aspects surrounding CVE-2021-2170.

Vulnerability Description

The vulnerability in MySQL Server enables a high privileged attacker with network access to compromise the server, leading to potential DOS attacks.

Affected Systems and Versions

Oracle MySQL Server versions 8.0.23 and prior are susceptible to this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability requires network access via multiple protocols, allowing attackers to compromise the MySQL Server.

Mitigation and Prevention

Here are the steps to mitigate the risks posed by CVE-2021-2170 and prevent potential exploitation.

Immediate Steps to Take

It is crucial to patch affected systems promptly and monitor for any unusual activities or unauthorized access attempts.

Long-Term Security Practices

Implementing strong access controls, network segmentation, and regular security updates can enhance the overall security posture.

Patching and Updates

Regularly update MySQL Server to the latest version, apply security patches, and follow best practices to secure the environment effectively.