CVE-2019-2911 Explained : Impact and Mitigation

A vulnerability has been discovered in the Oracle MySQL product, affecting versions 5.6.45 and earlier, 5.7.27 and earlier, and 8.0.17 and earlier. This vulnerability allows a highly privileged attacker with network access to compromise the MySQL Server, potentially leading to unauthorized data access.

Understanding CVE-2019-2911

This CVE pertains to a vulnerability in the Information Schema component of Oracle MySQL, impacting various versions of the MySQL Server.

What is CVE-2019-2911?

The vulnerability in CVE-2019-2911 allows a highly privileged attacker with network access through multiple protocols to compromise the MySQL Server, potentially resulting in unauthorized access to a subset of the server's data.

The Impact of CVE-2019-2911

Successful exploitation can lead to unauthorized reading of accessible data within the MySQL Server.
The CVSS 3.0 base score for this vulnerability is 2.7, primarily affecting confidentiality.

Technical Details of CVE-2019-2911

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in the Information Schema component of Oracle MySQL allows attackers to compromise the MySQL Server through network access.

Affected Systems and Versions

MySQL Server 5.6.45 and prior
MySQL Server 5.7.27 and prior
MySQL Server 8.0.17 and prior

Exploitation Mechanism

The vulnerability can be exploited by a highly privileged attacker with network access through various protocols, potentially leading to unauthorized data access.

Mitigation and Prevention

Protecting systems from CVE-2019-2911 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Oracle promptly.
Restrict network access to the MySQL Server to trusted entities.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch MySQL Server installations.
Implement strong access controls and authentication mechanisms.
Conduct regular security audits and vulnerability assessments.

Patching and Updates

Ensure that the MySQL Server is updated to a secure version that addresses the CVE-2019-2911 vulnerability.