CVE-2020-2853 : Security Advisory and Response
Learn about CVE-2020-2853, a vulnerability in Oracle MySQL Server (versions 8.0.18 and prior) that allows high privileged attackers to compromise the server, potentially leading to a denial of service (DOS) attack. Find out the impact, technical details, and mitigation steps.
A vulnerability in Oracle MySQL Server (versions 8.0.18 and prior) allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-2853
This CVE involves a security vulnerability in Oracle MySQL Server that can be exploited by an attacker with network access to compromise the server.
What is CVE-2020-2853?
The vulnerability in Oracle MySQL Server (component: Server: Security: Privileges) affects versions 8.0.18 and earlier. It allows a high privileged attacker with network access to compromise the server, potentially resulting in a DOS attack.
The Impact of CVE-2020-2853
- Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a complete denial of service (DOS).
- CVSS 3.0 Base Score: 4.9 (Availability impacts).
Technical Details of CVE-2020-2853
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows a high privileged attacker with network access to compromise Oracle MySQL Server, potentially leading to a DOS attack.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Affected Versions: 8.0.18 and prior
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- Availability Impact: High
Mitigation and Prevention
Protecting systems from CVE-2020-2853 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 to authorized users only.
Long-Term Security Practices
- Regularly update and patch MySQL Server to address known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security updates from Oracle for MySQL Server.
- Regularly check for and apply patches to ensure system security.