CVE-2020-14844 : Exploit Details and Defense Strategies
Learn about CVE-2020-14844, a vulnerability in Oracle MySQL Server versions 8.0.21 and prior. Find out the impact, affected systems, and mitigation steps to secure your server.
A vulnerability in Oracle MySQL Server (component: Server: PS) versions 8.0.21 and prior allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-14844
This CVE involves a vulnerability in MySQL Server that could be exploited by an attacker with network access to compromise the server.
What is CVE-2020-14844?
The vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially resulting in a DOS attack. The affected versions are 8.0.21 and prior.
The Impact of CVE-2020-14844
Successful exploitation of this vulnerability can lead to unauthorized access, causing the server to hang or crash, resulting in a complete denial of service.
Technical Details of CVE-2020-14844
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in MySQL Server allows a high privileged attacker with network access to compromise the server, potentially leading to a DOS attack.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions affected: 8.0.21 and prior
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Availability Impact: High
- CVSS 3.1 Base Score: 4.9 (Medium Severity)
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Mitigation and Prevention
Protecting systems from this vulnerability is crucial to maintaining security.
Immediate Steps to Take
- Apply security patches provided by Oracle promptly.
- Monitor network traffic for any suspicious activity.
- Restrict network access to the MySQL Server.
Long-Term Security Practices
- Regularly update and patch MySQL Server to address security vulnerabilities.
- Implement network segmentation to limit access to critical servers.
- Conduct regular security audits and penetration testing.
Patching and Updates
Ensure that the MySQL Server is updated to a non-vulnerable version to mitigate the risk of exploitation.