CVE-2020-14861 Explained : Impact and Mitigation
Learn about CVE-2020-14861, a vulnerability in Oracle MySQL Server that allows attackers to compromise the server. Find out the affected versions, impact, and mitigation steps.
A vulnerability in Oracle MySQL Server (component: Server: Optimizer) allows a high privileged attacker to compromise the server. The affected versions are 8.0.21 and prior, with a CVSS 3.1 Base Score of 4.9.
Understanding CVE-2020-14861
This CVE involves a vulnerability in Oracle MySQL Server that can be exploited by an attacker with network access to compromise the server.
What is CVE-2020-14861?
The vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
The Impact of CVE-2020-14861
Successful exploitation of this vulnerability can result in unauthorized access, causing the server to hang or crash, impacting the availability of MySQL Server.
Technical Details of CVE-2020-14861
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Oracle MySQL Server (component: Server: Optimizer) affects versions 8.0.21 and prior. It allows a high privileged attacker with network access to compromise the server.
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
- Availability Impact: High
- CVSS 3.1 Base Score: 4.9 (Medium Severity)
Mitigation and Prevention
Protecting systems from CVE-2020-14861 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 MySQL Server to the latest version.
- Conduct security audits to identify and address vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure that all security patches and updates released by Oracle for MySQL Server are applied promptly to mitigate the risk of exploitation.