CVE-2024-20961 Explained : Impact and Mitigation

This is a detailed overview of CVE-2024-20961, a vulnerability found in Oracle's MySQL Server.

Understanding CVE-2024-20961

CVE-2024-20961 is an easily exploitable vulnerability that allows a low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful exploitation of this vulnerability can lead to unauthorized ability to cause a hang or frequently repeatable crash, resulting in a complete Denial of Service (DOS) of MySQL Server.

What is CVE-2024-20961?

The vulnerability lies within the MySQL Server product of Oracle MySQL, specifically in the Server Optimizer component. The affected versions include 8.0.35 and versions prior to it, as well as 8.2.0 and versions prior to it. The CVSS 3.1 Base Score for this vulnerability is 6.5, with an availability impact.

The Impact of CVE-2024-20961

The impact of exploiting CVE-2024-20961 can lead to unauthorized access and the ability to disrupt the normal functioning of MySQL Server, potentially resulting in a denial of service situation where legitimate users are unable to access the service.

Technical Details of CVE-2024-20961

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability allows a low privileged attacker to compromise MySQL Server through network access via multiple protocols, leading to unauthorized actions that can disrupt server functionality.

Affected Systems and Versions

The affected product is Oracle's MySQL Server, with versions including 8.0.35 and prior, as well as 8.2.0 and versions prior to it.

Exploitation Mechanism

By leveraging the vulnerability, an attacker with network access can exploit the flaw in the Server Optimizer component to compromise MySQL Server, potentially causing a complete Denial of Service.

Mitigation and Prevention

Mitigating the risk posed by CVE-2024-20961 is crucial to maintaining the security of MySQL Server.

Immediate Steps to Take

Organizations using affected versions should apply patches or updates provided by Oracle promptly.
Network security measures should be reinforced to prevent unauthorized access.

Long-Term Security Practices

Regular security assessments and audits can help identify vulnerabilities proactively.
Implementing least privilege access controls can limit the impact of potential attacks.

Patching and Updates

Oracle has released patches to address the vulnerability in MySQL Server. It is essential for organizations to apply these patches as soon as possible to mitigate the risk of exploitation.