CVE-2018-3077 : Vulnerability Insights and Analysis

Oracle MySQL Server versions 5.7.22 and prior, as well as 8.0.11 and prior, are affected by a vulnerability that allows a highly privileged attacker to compromise the server, potentially leading to a denial of service. This CVE was published on July 18, 2018.

Understanding CVE-2018-3077

This CVE affects Oracle MySQL Server, impacting its availability due to a vulnerability in the Server: DDL subcomponent.

What is CVE-2018-3077?

The vulnerability in Oracle MySQL Server allows a highly privileged attacker with network access to compromise the server using various protocols. Successful exploitation can result in unauthorized actions leading to server hang or repeated crashes, causing a denial of service.

The Impact of CVE-2018-3077

The vulnerability has a CVSS 3.0 Base Score of 4.9, primarily affecting the availability of the MySQL Server. If exploited, it can lead to unauthorized actions causing the server to hang or crash repeatedly.

Technical Details of CVE-2018-3077

Oracle MySQL Server is affected by a vulnerability that can be exploited by a highly privileged attacker with network access.

Vulnerability Description

The vulnerability in the Server: DDL subcomponent of Oracle MySQL Server allows attackers to compromise the server, impacting its availability.

Affected Systems and Versions

MySQL Server 5.7.22 and earlier
MySQL Server 8.0.11 and earlier

Exploitation Mechanism

Highly privileged attacker with network access
Various protocols can be used for exploitation
Unauthorized actions can lead to server hang or repeated crashes

Mitigation and Prevention

To address CVE-2018-3077, follow these steps:

Immediate Steps to Take

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

Long-Term Security Practices

Regularly update MySQL Server to the latest version
Implement network segmentation to limit access to critical servers
Conduct regular security audits and penetration testing

Patching and Updates

Oracle has released patches to address this vulnerability
Regularly check for updates and apply them promptly to ensure server security