CVE-2021-2072 : Vulnerability Insights and Analysis

A vulnerability has been identified in MySQL Server, a product of Oracle Corporation. This vulnerability, labeled CVE-2021-2072, affects versions 8.0.22 and prior. An attacker with high privileges and network access can exploit this easily exploitable vulnerability to compromise the MySQL Server, potentially causing a denial of service (DOS) by crashing the server.

Understanding CVE-2021-2072

This section provides an overview of the vulnerability and its impacts.

What is CVE-2021-2072?

The vulnerability affects MySQL Server versions 8.0.22 and earlier. It allows a high-privileged attacker with network access to compromise the server, leading to a DOS condition.

The Impact of CVE-2021-2072

Successful exploitation can result in unauthorized access capable of causing a server hang or frequent crashes, impacting the availability of the MySQL Server. The CVSS 3.1 Base Score for this vulnerability is 4.9, with a focus on availability impacts.

Technical Details of CVE-2021-2072

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in MySQL Server's Stored Procedure component enables attackers to compromise the server, potentially leading to DOS by causing server crashes.

Affected Systems and Versions

The vulnerability impacts MySQL Server versions 8.0.22 and prior, allowing attackers with network access to exploit the server.

Exploitation Mechanism

Attacks exploiting this vulnerability can occur over multiple protocols, enabling high-privileged attackers to compromise the MySQL Server.

Mitigation and Prevention

In this section, we discuss steps to mitigate and prevent exploitation of CVE-2021-2072.

Immediate Steps to Take

It is crucial to apply security patches or updates provided by Oracle Corporation to address this vulnerability promptly. Additionally, restricting network access to the MySQL Server can reduce the risk of exploitation.

Long-Term Security Practices

Maintaining updated security protocols, monitoring network traffic for suspicious activities, and implementing access controls are essential for long-term security.

Patching and Updates

Regularly check for security advisories from Oracle Corporation and apply relevant patches to ensure the MySQL Server is protected from known vulnerabilities.