CVE-2021-2352 : Vulnerability Insights and Analysis

This article provides an overview of CVE-2021-2352, a vulnerability in Oracle MySQL Server that allows a high-privileged attacker to compromise the server, potentially leading to denial of service attacks.

Understanding CVE-2021-2352

CVE-2021-2352 is a vulnerability in MySQL Server that affects versions 8.0.25 and prior. It allows attackers with network access to compromise the server, leading to potential denial of service attacks.

What is CVE-2021-2352?

The vulnerability in MySQL Server allows high-privileged attackers to exploit it via multiple protocols, potentially causing a DOS (Denial of Service) by crashing the server. The CVSS 3.1 Base Score is 4.9, indicating medium severity with high availability impact.

The Impact of CVE-2021-2352

Successful exploitation of CVE-2021-2352 can result in unauthorized access to cause the server to hang or crash frequently, leading to denial of service. Attackers can compromise the MySQL Server, posing a significant risk.

Technical Details of CVE-2021-2352

This section delves into the technical aspects of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in MySQL Server (component: Server: DDL) affects versions 8.0.25 and prior, allowing attackers to compromise the server and potentially cause a complete DOS. The CVSS 3.1 Base Score is 4.9, with high availability impacts.

Affected Systems and Versions

The vulnerable versions include MySQL Server 8.0.25 and earlier, exposing them to exploitation by high-privileged attackers with network access.

Exploitation Mechanism

Attackers with network access can exploit this vulnerability via multiple protocols, compromising the MySQL Server and potentially causing it to crash or hang, leading to denial of service.

Mitigation and Prevention

To safeguard your systems from CVE-2021-2352, take immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Implement access controls, monitor network traffic, and restrict privileges to mitigate the risk of exploitation. Consider applying security patches promptly.

Long-Term Security Practices

Conduct regular security assessments, educate users on best practices, and stay informed about vulnerabilities affecting MySQL Server to enhance long-term security.

Patching and Updates

Stay updated with security advisories, follow vendor recommendations, and apply patches and updates promptly to address vulnerabilities and enhance the security of MySQL Server.