CVE-2020-2926 Explained : Impact and Mitigation

A vulnerability in the MySQL Server product of Oracle MySQL has been identified, affecting versions 8.0.19 and prior. This vulnerability could allow a high privileged attacker to compromise the MySQL Server.

Understanding CVE-2020-2926

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

What is CVE-2020-2926?

The vulnerability allows a high privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a denial of service (DOS) condition.

The Impact of CVE-2020-2926

The vulnerability has a CVSS 3.0 Base Score of 4.4, with high availability impacts. Attackers can exploit this vulnerability to compromise the MySQL Server.

Technical Details of CVE-2020-2926

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in the MySQL Server product of Oracle MySQL allows attackers with network access to compromise the server, potentially leading to a DOS condition.

Affected Systems and Versions

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

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: High

Mitigation and Prevention

Protecting systems from CVE-2020-2926 is crucial to maintaining security.

Immediate Steps to Take

Apply security 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 installations.
Implement network segmentation to limit access to critical servers.
Conduct regular security audits and penetration testing.

Patching and Updates

Stay informed about security updates from Oracle for MySQL Server.
Apply patches as soon as they are released to mitigate the vulnerability.