CVE-2024-21213: Vulnerability in MySQL Server (InnoDB Component) Allowing High Privileged Attackers to Launch Successful DOS Attacks

A recently discovered vulnerability in the MySQL Server has been given the identifier CVE-2024-21213, which exposes affected systems to the unauthorized ability of high privileged attackers to compromise the MySQL Server by causing a hang or repeatedly crash the server, leading to a complete Denial of Service (DOS) attack. This vulnerability affects the InnoDB component of Oracle MySQL and users running supported versions 8..39 and prior, 8.4.2 and prior, and 9..1 and prior are at risk.

Exploit Details

CVE-2024-21213 is an easily exploitable vulnerability that allows an attacker with high privileges and logon access to the infrastructure where the MySQL Server is being executed to execute a successful attack. Human interaction from someone other than the attacker is required for a successful exploit. The impacts of this vulnerability are restricted to the availability of MySQL Server and do not affect the confidentiality or integrity of the data stored or processed by the affected systems.

The Common Vulnerability Scoring System (CVSS) 3.1 Base Score for this vulnerability is 4.2, which indicates a medium-level risk to the availability of affected systems. The CVSS Vector for this vulnerability is (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H).

Code Snippet for Exploiting CVE-2024-21213

Although we won't share a complete working exploit code, below is a code snippet to provide a general idea of how an attacker might leverage this vulnerability:

#PSEUDOCODE
def exploit_cve_2024_21213(target, username, password):
    connect_to_mysql(target, username, password)
    send_malicious_payload()
    trigger_innodb_crash()

Please note that sharing a complete exploit code is not responsible, nor ethical, and may lead to further exploitation by malicious actors.

Mitigation and Recommendations

As of now, there is no official patch or fix for the CVE-2024-21213 vulnerability by Oracle. Users are advised to keep an eye on updates and patches released by Oracle to rectify this issue.

Meanwhile, some recommended steps to secure your systems from potential attacks are

1. Ensure that only trusted and authorized users have high privileged access to the MySQL Server infrastructure.
2. Regularly monitor server logs and activities to detect any unexpected behavior or unauthorized access.

For more information on CVE-2024-21213, please refer to the following original sources

1. National Vulnerability Database (NVD) - CVE-2024-21213
2. Oracle Critical Patch Update Advisory - April 2024 (when released)

Conclusion

CVE-2024-21213, a vulnerability in the MySQL Server InnoDB component, poses a threat to affected systems and leaves them open to potential DOS attacks by high privileged attackers. System administrators should remain vigilant, implement necessary security measures, and monitor the release of any patches or updates from Oracle to safeguard their infrastructure.

Timeline

Published on: 10/15/2024 20:15:10 UTC
Last modified on: 10/16/2024 20:43:51 UTC