CVE-2021-2171 Explained : Impact and Mitigation

A vulnerability has been identified in the MySQL Server product of Oracle MySQL. This CVE affects versions 5.7.33 and prior, as well as 8.0.23 and prior, allowing a high privileged attacker with network access to compromise MySQL Server. Read on to understand the impact, technical details, and mitigation steps related to CVE-2021-2171.

Understanding CVE-2021-2171

This section will delve into the specifics of the CVE-2021-2171 vulnerability.

What is CVE-2021-2171?

The vulnerability in the MySQL Server product of Oracle MySQL allows attackers to compromise the server, potentially causing a denial of service (DOS) attack.

The Impact of CVE-2021-2171

Successful exploitation of this vulnerability can lead to unauthorized activities, such as causing the MySQL Server to hang or crash.

Technical Details of CVE-2021-2171

Let's dive deeper into the technical aspects of CVE-2021-2171.

Vulnerability Description

The vulnerability in MySQL Server (component: Server: Replication) is classified as difficult to exploit. It enables high privileged attackers with network access to compromise the server, leading to a DOS condition.

Affected Systems and Versions

The affected versions include MySQL Server 5.7.33 and earlier, as well as 8.0.23 and earlier.

Exploitation Mechanism

The vulnerability can be exploited by a high privileged attacker with network access via multiple protocols.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-2171.

Immediate Steps to Take

It is crucial to apply security patches promptly and monitor for any unusual activities on the MySQL Server.

Long-Term Security Practices

Implementing network segmentation and access controls can help prevent unauthorized access to the server.

Patching and Updates

Regularly update MySQL Server to the latest version to address known vulnerabilities and enhance security measures.