CVE-2019-2631 Explained : Impact and Mitigation

A vulnerability has been discovered in the Oracle MySQL Server, specifically in its component called Information Schema. This vulnerability affects versions 8.0.15 and earlier. It can be easily exploited by a highly privileged attacker who has network access via various protocols, resulting in a compromise of the MySQL Server. If successfully attacked, this vulnerability can lead to unauthorized actions causing the server to hang or crash persistently, resulting in a complete denial of service. The Common Vulnerability Scoring System (CVSS) 3.0 Base Score for this vulnerability is 4.9, specifically impacting availability. The corresponding CVSS Vector is (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Understanding CVE-2019-2631

This section provides insights into the nature and impact of the CVE-2019-2631 vulnerability.

What is CVE-2019-2631?

CVE-2019-2631 is a vulnerability found in the Oracle MySQL Server's Information Schema component, affecting versions 8.0.15 and earlier. It allows a highly privileged attacker with network access to compromise the server, potentially leading to a denial of service.

The Impact of CVE-2019-2631

The vulnerability poses a significant risk to the availability of the MySQL Server, as successful exploitation can result in unauthorized actions, server crashes, and persistent hangs, ultimately causing a denial of service.

Technical Details of CVE-2019-2631

This section delves into the technical aspects of the CVE-2019-2631 vulnerability.

Vulnerability Description

The vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Information Schema, allows a highly privileged attacker with network access to compromise the server, potentially leading to a denial of service.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 8.0.15 and prior

Exploitation Mechanism

Attackers with high privileges and network access can exploit the vulnerability via multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

In this section, you will find recommendations on how to mitigate and prevent the CVE-2019-2631 vulnerability.

Immediate Steps to Take

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

Long-Term Security Practices

Regularly update and patch the MySQL Server to address known vulnerabilities.
Implement network segmentation to limit the exposure of critical servers.
Conduct regular security audits and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from Oracle Corporation and apply patches as soon as they are released.