CVE-2023-21947 : Vulnerability Insights and Analysis

This CVE record was published by Oracle on April 18, 2023, highlighting a vulnerability in Oracle MySQL Server (component: Server: Components Services). The affected versions include 8.0.32 and prior, allowing a high privileged attacker with network access to compromise MySQL Server.

Understanding CVE-2023-21947

This vulnerability in the MySQL Server product poses a risk of unauthorized access to cause a hang or frequently repeatable crash, leading to a complete Denial of Service (DOS) of MySQL Server.

What is CVE-2023-21947?

CVE-2023-21947 is a difficult-to-exploit vulnerability that enables a high privileged attacker to compromise MySQL Server by exploiting multiple protocols. Successful attacks could result in the unauthorized ability to disrupt the server's operations.

The Impact of CVE-2023-21947

The impact of CVE-2023-21947 is significant as it can lead to unauthorized disruption of MySQL Server operations by causing a hang or repeatable crash, resulting in a complete Denial of Service (DOS) condition.

Technical Details of CVE-2023-21947

This section delves into the specific technical aspects of the vulnerability, outlining the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Oracle MySQL Server allows a high privileged attacker with network access to compromise the server, potentially causing a complete Denial of Service (DOS) by triggering a hang or repeatable crash.

Affected Systems and Versions

The impacted system is Oracle MySQL Server, specifically versions 8.0.32 and prior. Users running these versions are susceptible to exploitation by high privileged attackers with network access.

Exploitation Mechanism

Exploiting this vulnerability requires a high level of privilege and network access via multiple protocols. Attackers can leverage these entry points to compromise MySQL Server and disrupt its operations.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2023-21947, immediate actions, long-term security practices, and timely patching and updates are recommended.

Immediate Steps to Take

System administrators are advised to apply security patches provided by Oracle promptly. Additionally, restricting network access and privileges can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing strict access controls, conducting regular security audits, and staying informed about software vulnerabilities are essential long-term security practices to prevent unauthorized access and mitigate risks.

Patching and Updates

Regularly monitoring for security updates from Oracle and promptly applying patches for Oracle MySQL Server are crucial steps to ensure system security and protect against potential threats.