CVE-2020-2924 : Exploit Details and Defense Strategies

A vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) has been identified, affecting versions 8.0.19 and prior. This vulnerability could allow a high privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial of service (DOS) attack.

Understanding CVE-2020-2924

This CVE pertains to a vulnerability in the MySQL Server product of Oracle MySQL, impacting versions 8.0.19 and earlier.

What is CVE-2020-2924?

The vulnerability allows a high privileged attacker with network access to compromise the MySQL Server, potentially resulting in a DOS attack.

The Impact of CVE-2020-2924

Successful exploitation of this vulnerability could lead to unauthorized access, causing a hang or frequently repeatable crash of the MySQL Server, resulting in a complete denial of service.

Technical Details of CVE-2020-2924

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in the MySQL Server product of Oracle MySQL allows a high privileged attacker with network access to compromise the server.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 8.0.19 and prior

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
User Interaction: None
Scope: Unchanged
CVSS 3.0 Base Score: 4.9 (Medium Severity)
CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Mitigation and Prevention

Protecting systems from CVE-2020-2924 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Oracle Corporation promptly.
Monitor network traffic for any suspicious activity.
Restrict network access to the MySQL Server to authorized personnel only.

Long-Term Security Practices

Regularly update and patch MySQL Server to the latest version.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security audits and penetration testing to identify vulnerabilities.

Patching and Updates

Ensure that all security patches and updates released by Oracle Corporation for MySQL Server are applied promptly to mitigate the risk of exploitation.