CVE-2020-14776 Explained : Impact and Mitigation
Learn about CVE-2020-14776, a vulnerability in Oracle MySQL Server allowing high privileged attackers to compromise the server, potentially leading to a denial of service (DOS) attack. Find out the impacted versions and mitigation steps.
A vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-14776
This CVE involves a vulnerability in the MySQL Server product of Oracle MySQL, specifically affecting versions 5.7.31 and prior, as well as 8.0.21 and prior.
What is CVE-2020-14776?
The vulnerability in the MySQL Server product of Oracle MySQL, related to the InnoDB component, enables a high privileged attacker with network access to compromise the server. Successful exploitation can result in unauthorized actions causing a hang or crash of the MySQL Server, leading to a denial of service.
The Impact of CVE-2020-14776
The vulnerability has a CVSS 3.1 Base Score of 4.9, with a focus on availability impacts. This means that successful attacks can significantly disrupt the availability of the MySQL Server.
Technical Details of CVE-2020-14776
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability allows a high privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial of service by causing the server to hang or crash.
Affected Systems and Versions
- Affected versions include MySQL Server 5.7.31 and earlier, as well as 8.0.21 and earlier.
Exploitation Mechanism
The vulnerability is easily exploitable by attackers with high privileges and network access via multiple protocols, enabling them to compromise the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2020-14776 is crucial to maintaining security.
Immediate Steps to Take
- Apply patches and updates provided by Oracle to address the vulnerability.
- Monitor network traffic for any suspicious activity that could indicate an ongoing attack.
Long-Term Security Practices
- Regularly update and patch all software and systems to prevent vulnerabilities.
- Implement strong access controls and privilege management to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security alerts and advisories from Oracle to promptly apply relevant patches and updates.