CVE-2020-14809 : Exploit Details and Defense Strategies

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

Understanding CVE-2020-14809

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

What is CVE-2020-14809?

The vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) allows a high privileged attacker with network access to compromise the server. Successful exploitation can lead to a DOS attack.

The Impact of CVE-2020-14809

CVSS 3.1 Base Score: 4.9 (Availability impacts)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
Availability Impact: High

Technical Details of CVE-2020-14809

This section provides more technical insights into the CVE.

Vulnerability Description

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

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Affected Versions: 8.0.21 and prior

Exploitation Mechanism

The vulnerability can be exploited by a high privileged attacker with network access via multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

Protecting systems from CVE-2020-14809 is crucial for maintaining security.

Immediate Steps to Take

Apply security patches provided by Oracle Corporation.
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

Ensure that the MySQL Server is updated to a non-vulnerable version to mitigate the risk of exploitation.