CVE-2021-2174 : Exploit Details and Defense Strategies

A detailed overview of CVE-2021-2174, a vulnerability in MySQL Server product of Oracle MySQL affecting versions 5.7.33 and prior, as well as 8.0.23 and prior.

Understanding CVE-2021-2174

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-2174.

What is CVE-2021-2174?

The vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB) allows a high privileged attacker with network access to compromise the server. Successful exploitation can lead to unauthorized actions causing server crashes.

The Impact of CVE-2021-2174

The vulnerability poses a medium-severity risk with a CVSS 3.1 Base Score of 4.4 (Availability impacts). It allows attackers to cause a denial of service (DOS) by crashing the MySQL Server.

Technical Details of CVE-2021-2174

Exploring the vulnerability specifics and affected systems to understand the exploitation mechanism.

Vulnerability Description

The difficult-to-exploit vulnerability in MySQL Server enables attackers with network access to compromise server integrity, potentially leading to DOS attacks.

Affected Systems and Versions

Oracle MySQL versions 5.7.33 and prior, along with 8.0.23 and prior, are confirmed to be vulnerable to exploitation, putting the server at risk.

Exploitation Mechanism

Attackers can utilize multiple protocols to gain unauthorized access and trigger server crashes, impacting the availability of MySQL Server.

Mitigation and Prevention

Strategies to address and prevent the exploitation of CVE-2021-2174 for enhanced security.

Immediate Steps to Take

Prompt actions involve monitoring server logs, restricting network access, and applying relevant patches from the vendor.

Long-Term Security Practices

Implementing regular vulnerability scans, access control measures, and security audits to enhance the overall server protection.

Patching and Updates

Regularly check for security updates and patches released by Oracle Corporation for MySQL Server to mitigate the risk of exploitation.