CVE-2020-14789 : Exploit Details and Defense Strategies

A vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.

Understanding CVE-2020-14789

This CVE involves a vulnerability in the MySQL Server product of Oracle MySQL, impacting versions 5.7.31 and prior, as well as 8.0.21 and prior.

What is CVE-2020-14789?

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

The Impact of CVE-2020-14789

Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a complete denial of service.
CVSS 3.1 Base Score: 4.9 (Availability impacts)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Technical Details of CVE-2020-14789

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows a high privileged attacker to compromise the MySQL Server, potentially causing a DOS attack.

Affected Systems and Versions

Affected Versions: 5.7.31 and prior, 8.0.21 and prior

Exploitation Mechanism

The vulnerability can be exploited by a high privileged attacker with network access via multiple protocols.

Mitigation and Prevention

Protecting systems from CVE-2020-14789 is crucial to maintaining security.

Immediate Steps to Take

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

Long-Term Security Practices

Regularly update and patch MySQL Server to address security vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security updates from Oracle and apply them as soon as they are available.