CVE-2021-2088 : Security Advisory and Response

This article discusses CVE-2021-2088, a vulnerability found in Oracle MySQL Server versions 8.0.22 and prior, impacting system availability.

Understanding CVE-2021-2088

This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-2088?

The vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, leading to a Denial of Service (DOS) attack. It has a CVSS 3.1 Base Score of 4.4 (Availability impacts).

The Impact of CVE-2021-2088

Successful exploitation of this vulnerability can result in an unauthorized ability to cause a hang or frequently repeatable crash, impacting the availability of the MySQL Server.

Technical Details of CVE-2021-2088

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

Vulnerability Description

The vulnerability in Oracle MySQL Server (component: Server: DML) affects versions 8.0.22 and prior, allowing an attacker with logon access to compromise the server.

Affected Systems and Versions

Oracle MySQL Server versions 8.0.22 and prior are vulnerable to this exploit.

Exploitation Mechanism

The vulnerability is easily exploitable by a high privileged attacker with logon access to the MySQL Server infrastructure.

Mitigation and Prevention

This section outlines steps to mitigate the risk posed by CVE-2021-2088 and prevent potential exploitation.

Immediate Steps to Take

Update Oracle MySQL Server to a patched version that addresses the vulnerability.
Limit access to the MySQL Server to authorized personnel only.

Long-Term Security Practices

Implement strong access controls, regular security assessments, and employee training to enhance overall system security.

Patching and Updates

Stay informed about security releases from Oracle and apply patches promptly to secure your MySQL Server.