CVE-2020-2774 : Exploit Details and Defense Strategies

A vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.

Understanding CVE-2020-2774

This CVE involves a security vulnerability in MySQL Server that could be exploited by an attacker with network access to compromise the server.

What is CVE-2020-2774?

The vulnerability in MySQL Server (component: Server: Security: Privileges) affects versions 8.0.18 and prior. It allows a high privileged attacker with network access via multiple protocols to compromise the server.

The Impact of CVE-2020-2774

Successful exploitation of this vulnerability can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. The CVSS 3.0 Base Score is 4.9, with a high impact on availability.

Technical Details of CVE-2020-2774

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows a high privileged attacker with network access to compromise 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
CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Mitigation and Prevention

To address CVE-2020-2774, follow these mitigation strategies:

Immediate Steps to Take

Apply security patches provided by Oracle promptly.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update MySQL Server to the latest version.
Implement network segmentation to limit access to critical systems.

Patching and Updates

Stay informed about security alerts and updates from Oracle.
Regularly check for new patches and apply them to ensure system security.