CVE-2021-35627 : Vulnerability Insights and Analysis
Learn about CVE-2021-35627, a vulnerability in Oracle MySQL Server that allows unauthorized access, potentially causing MySQL Server hangs or crashes. Find out mitigation steps and best security practices.
A vulnerability has been identified in the MySQL Server product of Oracle MySQL, specifically in the Server Optimizer component. This vulnerability affects versions 8.0.26 and prior, allowing a high privileged attacker with network access to compromise the MySQL Server. Successful exploitation could lead to unauthorized actions resulting in denial of service attacks.
Understanding CVE-2021-35627
This section will provide insights into the nature and impact of the CVE-2021-35627 vulnerability.
What is CVE-2021-35627?
The vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) affects versions 8.0.26 and earlier. It enables a high privileged attacker with network access to compromise the MySQL Server, potentially causing denial of service attacks.
The Impact of CVE-2021-35627
Successful exploitation of this vulnerability allows the attacker to execute unauthorized actions, potentially leading to a hang or repeatable crash of the MySQL Server. The base score for this vulnerability is 4.9, indicating medium severity with high availability impacts.
Technical Details of CVE-2021-35627
In this section, we delve deeper into the technical aspects of CVE-2021-35627.
Vulnerability Description
The vulnerability allows a high privileged attacker with network access to compromise the MySQL Server. This can result in denial of service attacks by causing the server to hang or crash repeatedly.
Affected Systems and Versions
The vulnerability affects Oracle MySQL Server versions 8.0.26 and earlier.
Exploitation Mechanism
Attackers can exploit this vulnerability remotely via multiple protocols, leveraging network access to compromise the MySQL Server.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-35627, certain proactive measures need to be taken.
Immediate Steps to Take
Update the MySQL Server to a non-vulnerable version immediately. Monitor network access closely to prevent unauthorized exploitation of the vulnerability.
Long-Term Security Practices
Regularly update the MySQL Server and apply security patches promptly to prevent potential exploitation of known vulnerabilities.
Patching and Updates
Stay informed about security alerts and advisories related to MySQL Server from official sources such as Oracle Corporation and apply patches as soon as they are released.