CVE-2020-2770 : What You Need to Know
Learn about CVE-2020-2770, a vulnerability in Oracle MySQL Server that allows attackers to compromise the server, potentially leading to a denial of service attack. Find out the impacted versions and mitigation steps.
A vulnerability in Oracle MySQL Server (component: Server: Logging) allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-2770
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-2020-2770?
The vulnerability in Oracle MySQL Server (component: Server: Logging) affects versions 8.0.18 and prior. It allows a high privileged attacker with network access via multiple protocols to compromise the server, potentially resulting in a DOS attack.
The Impact of CVE-2020-2770
Successful exploitation of this vulnerability can lead to unauthorized actions causing the server to hang or crash, resulting in a complete denial of service. The CVSS 3.0 Base Score is 4.9, with a focus on availability impacts.
Technical Details of CVE-2020-2770
This section provides more technical insights into 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: 8.0.18 and prior
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
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 known vulnerabilities.
- Implement network segmentation to limit the exposure of critical servers.
- Conduct regular security audits and penetration testing.
Patching and Updates
Ensure that the MySQL Server is updated to a version that includes the patch for CVE-2020-2770 to mitigate the risk of exploitation.