CVE-2021-2001 Explained : Impact and Mitigation
Discover the details of CVE-2021-2001, a vulnerability in Oracle MySQL Server that allows high privileged attackers to compromise the server, potentially leading to a denial of service attack.
A vulnerability has been discovered in Oracle MySQL Server that could allow a high privileged attacker to compromise the server, resulting in a denial of service (DOS) attack. Here's everything you need to know about CVE-2021-2001.
Understanding CVE-2021-2001
This section delves into the details of the CVE-2021-2001 vulnerability in Oracle MySQL Server.
What is CVE-2021-2001?
The vulnerability in Oracle MySQL Server allows an attacker with network access to compromise the server, potentially causing a complete DOS attack. The affected versions include 5.6.50 and prior, 5.7.30 and prior, and 8.0.17 and prior.
The Impact of CVE-2021-2001
Successful exploitation of this vulnerability can lead to unauthorized activity that results in hanging or crashing of the MySQL Server, posing an availability risk with a CVSS 3.1 Base Score of 4.9 (high availability impact).
Technical Details of CVE-2021-2001
In this section, we explore the technical aspects of CVE-2021-2001.
Vulnerability Description
The vulnerability in Oracle MySQL Server lies in the server's Optimizer component, making it easily exploitable via multiple protocols, allowing a high privileged attacker to compromise the server.
Affected Systems and Versions
The vulnerability affects Oracle MySQL Server versions 5.6.50 and earlier, 5.7.30 and earlier, as well as 8.0.17 and earlier.
Exploitation Mechanism
An attacker with network access can exploit this vulnerability to compromise the MySQL Server, potentially leading to a complete DOS attack.
Mitigation and Prevention
Explore the measures to mitigate and prevent the CVE-2021-2001 vulnerability in Oracle MySQL Server.
Immediate Steps to Take
Immediately update to the patched versions provided by Oracle to address the vulnerability. Additionally, restrict network access to the MySQL Server to authorized entities only.
Long-Term Security Practices
Ensure regular security updates and patches are applied to the MySQL Server to prevent exploitation of known vulnerabilities.
Patching and Updates
Regularly check for updates and security advisories from Oracle to keep the MySQL Server secure.