CVE-2020-2904 : Exploit Details and Defense Strategies
Learn about CVE-2020-2904, a vulnerability in MySQL Server by Oracle Corporation affecting versions 8.0.19 and earlier. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) has been identified. This CVE affects versions 8.0.19 and prior, allowing a high privileged attacker with network access to compromise the MySQL Server.
Understanding CVE-2020-2904
This CVE pertains to a vulnerability in the MySQL Server product of Oracle MySQL, impacting versions 8.0.19 and earlier.
What is CVE-2020-2904?
The vulnerability in the MySQL Server product of Oracle MySQL allows a high privileged attacker with network access to compromise the server. Successful exploitation can lead to a complete denial of service (DOS) by causing the server to hang or crash repeatedly.
The Impact of CVE-2020-2904
The vulnerability has a CVSS 3.0 Base Score of 4.9, with a focus on availability impacts. This means that successful attacks can result in unauthorized actions that disrupt the availability of the MySQL Server.
Technical Details of CVE-2020-2904
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability allows a high privileged attacker with network access to compromise the MySQL Server, potentially leading to a complete DOS scenario.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions Affected: 8.0.19 and prior
Exploitation Mechanism
The vulnerability is easily exploitable, enabling attackers with network access via multiple protocols to compromise the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2020-2904 is crucial to maintaining security.
Immediate Steps to Take
- Apply security patches provided by Oracle promptly.
- Monitor network traffic for any suspicious activity targeting MySQL Server.
- Restrict network access to the MySQL Server to authorized personnel only.
Long-Term Security Practices
- Regularly update and patch MySQL Server to address known vulnerabilities.
- Implement network segmentation to limit the exposure of critical servers like MySQL.
- Conduct regular security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
Ensure that the MySQL Server is updated with the latest patches and security updates to mitigate the risk of exploitation.