CVE-2024-21203 - A Critical Vulnerability in MySQL Server Affecting Multiple Versions (8..39 and prior, 8.4.2 and prior, 9..1 and prior)

A new vulnerability (CVE-2024-21203) has been discovered in the MySQL Server product of Oracle MySQL, specifically in the Server: FTS component. The affected versions are 8..39 and prior, 8.4.2 and prior, and 9..1 and prior. This easily exploitable vulnerability can lead to serious consequences such as a complete denial of service (DOS) for MySQL Server. In this article, we will dive into the details of the vulnerability, potential exploits, and links to original references.

Exploit Details

This vulnerability allows high privileged attackers with network access via multiple protocols to compromise MySQL Server. Successful exploitation of this vulnerability may result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. The CVE-2024-21203 has a CVSS 3.1 Base Score of 4.9, with availability impacts being the most significant. The CVSS Vector for this vulnerability is (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Code Snippet

Although there are no explicit code snippets available for this vulnerability, the general idea is that an attacker with high-level privileges can submit malicious queries that exploit the vulnerability in the Server: FTS component, ultimately leading to a denial of service attack.

For a hypothetical example, let's assume the following MySQL query could exploit the Server: FTS component vulnerability:

SELECT * FROM vulnerable_table WHERE MATCH(vulnerable_column) AGAINST('malicious_query');

Note: This code snippet is purely for demonstration purposes, and may not reflect the actual code or methods used for exploiting the vulnerability.

For more information about this vulnerability, you can visit the following references

1. Oracle Critical Patch Update Advisory - January 2024: https://www.oracle.com/security-alerts/cpujan2024.html

2. CVE-2024-21203 Detail: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21203

3. National Vulnerability Database (NVD) - CVE-2024-21203: https://nvd.nist.gov/vuln/detail/CVE-2024-21203

Conclusion

As a MySQL Server user, it's important to be aware of vulnerabilities like CVE-2024-21203 and take necessary steps to mitigate potential damages. Keep your server up-to-date by applying the latest patches, and monitor security advisories for new vulnerabilities and updates. By staying informed and proactive, you can better protect your server and data from attacks and exploitation.

Timeline

Published on: 10/15/2024 20:15:08 UTC
Last modified on: 10/16/2024 20:46:35 UTC