In this article, we will discuss a recent vulnerability, CVE-2023-22115, found in the MySQL Server product of Oracle MySQL. This vulnerability arises from the Server: DML component and affects versions 8..33 and earlier. The exploit potentially allows a high privileged attacker to compromise the MySQL server and cause a complete denial of service (DOS). According to the Common Vulnerability Scoring System (CVSS) 3.1, the base score of this vulnerability is 4.9, primarily impacting availability. The CVSS vector can be identified as (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Vulnerability Breakdown

The CVE-2023-22115 vulnerability affects the supported MySQL Server versions 8..33 and prior. This exploit allows a high privileged attacker with network access via multiple protocols to compromise the MySQL Server. As a result, successful exploitation of this vulnerability can lead to an unauthorized ability to cause a hang or frequently repeatable crash. This could completely disrupt the availability of the MySQL Server, making it a significant DOS vulnerability risk.

- CVE Entry
- NVD Entry

Code Snippet

Though there is no specific code snippet provided for this vulnerability, it is crucial to ensure that your MySQL Server version is not outdated. Keep the server updated to the latest release to avoid potential exploitation.

Exploit Details

The initial step for exploiting this vulnerability is gaining network access through multiple protocols. Once the attacker has achieved this, they can compromise the MySQL Server using their high privileged access.

The attacker does not need to rely on user interaction or specific system configurations. However, it requires high-level privileges for direct execution. This makes the vulnerability relatively straightforward to exploit once the initial access prerequisites are met.

As the main impact of this vulnerability is availability, any organization relying on MySQL Server for critical applications and services should address this issue promptly. The best solution is to update the MySQL Server to a version that is not affected by this exploit.

Here are the recommendations to mitigate and prevent the exploitation of this vulnerability

1. Regularly update your MySQL Server: Keep the server software updated to the latest release, as mentioned in the MySQL Official Blog.

Restrict access: Limit access to the MySQL Server only to trusted users, networks, and services.

3. Monitor logs: System administrators should carefully monitor server logs and usage patterns to detect any unusual activities that may indicate an intrusion attempt. It is essential to remain aware of any high privileged access being utilized unexpectedly or suspiciously.

4. Implement security policies: Enforce strict access control and permissions policies, ensuring that only authorized users have elevated privileges.

By implementing these recommendations, you can mitigate the risks associated with the CVE-2023-22115 vulnerability. Regularly updating your MySQL Server, monitoring access, and establishing strict security policies will help ensure that your organization remains protected from potential exploitation.


Published on: 10/17/2023 22:15:00 UTC
Last modified on: 10/18/2023 18:19:00 UTC