CVE-2022-21451 Explained : Impact and Mitigation
Learn about CVE-2022-21451, a vulnerability in Oracle MySQL Server allowing attackers to compromise the server, leading to denial of service attacks. Find out the impacted versions and mitigation steps.
A vulnerability has been identified in Oracle MySQL Server that can allow a high privileged attacker to compromise the server, leading to denial of service attacks.
Understanding CVE-2022-21451
This CVE refers to a vulnerability in the MySQL Server product of Oracle MySQL, specifically in the InnoDB component.
What is CVE-2022-21451?
The vulnerability affects MySQL Server versions 5.7.37 and prior, as well as 8.0.28 and prior. It is classified as a difficult-to-exploit vulnerability that could allow a high privileged attacker with network access to compromise the server. Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in denial of service.
The Impact of CVE-2022-21451
The CVSS 3.1 Base Score for this vulnerability is 4.4, with a focus on availability impacts. This means that if exploited, the vulnerability can have a medium-severity impact on the availability of the MySQL Server.
Technical Details of CVE-2022-21451
Vulnerability Description
The vulnerability allows attackers with high privileges and network access to compromise the MySQL Server, potentially leading to denial of service attacks by causing the server to hang or crash.
Affected Systems and Versions
The vulnerability affects MySQL Server versions 5.7.37 and earlier, as well as versions 8.0.28 and earlier.
Exploitation Mechanism
Attackers can exploit this vulnerability via multiple network protocols, allowing them to compromise the server and disrupt its normal operations.
Mitigation and Prevention
Immediate Steps to Take
It is recommended to apply patches provided by Oracle to address this vulnerability promptly. Network access to MySQL Server should be restricted to only essential systems to reduce the risk of exploitation.
Long-Term Security Practices
Regularly monitor and update MySQL Server to the latest version to ensure that known vulnerabilities are patched. Implement strong access controls and network security measures to prevent unauthorized access.
Patching and Updates
Keep track of security advisories from Oracle and apply patches and updates as soon as they are released to protect the MySQL Server from potential security threats.