CVE-2022-21635 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically in the InnoDB component. This vulnerability affects all supported versions up to 8.0.29. It poses a medium severity level with a CVSS score of 6.5, indicating a significant risk to organizations using affected versions.
This vulnerability allows a high privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful exploitation can lead to unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to all MySQL Server accessible data. Additionally, this vulnerability permits attackers to cause a denial of service (DOS), resulting in a hang or frequent crashes of the MySQL Server.
Given the potential for significant impacts on data integrity and availability, organizations should prioritize patching immediately. It is crucial to address this vulnerability to prevent unauthorized access and ensure the integrity of the database.
As of now, there are no known exploits publicly available for this vulnerability, but the ease of exploitation combined with the potential consequences makes it a critical issue for organizations relying on Oracle MySQL.
Vulnerability Details
The official description of CVE-2022-21635 states that the vulnerability exists due to the design flaws in the MySQL Server product of Oracle MySQL. The affected versions are 8.0.29 and prior. The CVSS score indicates a medium level of severity with integrity and availability impacts.
The CVSS 3.1 Base Score of 6.5 is derived from the following vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H), indicating that the attack vector is network-based, the attack complexity is low, and high privileges are required for exploitation.
Technical Analysis
The root cause of this vulnerability is linked to insufficient validation of user input in MySQL's InnoDB component, which allows an attacker to manipulate the database state. The attack vector is network-based, requiring the attacker to have high privileges. The complexity of the attack is low, and it does not require any user interaction.
The vulnerability has implications for both data integrity and availability, with a potential for high impact on systems utilizing MySQL. Organizations should be aware of the risks and prioritize remediation.
Risk & Impact Analysis
The risk to organizations includes unauthorized access to critical data, which could result in data breaches and loss of sensitive information. Given that this vulnerability can lead to a denial of service, organizations may experience significant downtime, impacting their operations and reputation.
The blast radius potential of this vulnerability is considerable, as it affects all MySQL Server instances running the vulnerable versions. Organizations should implement immediate patching and monitoring strategies to mitigate the risk.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include all versions of MySQL prior to 8.0.29, as well as specific versions of the NetApp OnCommand Insight and OnCommand Workflow Automation products. Organizations using these versions should prioritize patching.
Mitigation & Remediation
Organizations should implement the latest patches from Oracle to remediate this vulnerability. Upgrading to MySQL version 8.0.30 or later is recommended. If immediate patching is not possible, consider applying configuration hardening and restricting network access to the MySQL Server.
For further assistance, organizations may consider engaging in penetration testing to validate their security posture and ensure robust defenses.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual database activity, including unauthorized access attempts and anomalies in data modification patterns.
Additionally, network signatures should be established to identify unauthorized access attempts to the MySQL Server.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2022-21635 lies in its demonstration of the potential vulnerabilities in widely used database systems. Security teams should take this as a reminder of the importance of regular updates and monitoring of database services.
This vulnerability represents a trend of increasing database attacks, and organizations that implement effective security measures and prioritize database security will be better positioned to defend against future threats.
For a deeper understanding of database security, organizations can refer to best practices outlined in our penetration testing methodology and ensure that their defenses are robust against evolving threats.
In conclusion, organizations should remain vigilant in their security practices, ensuring they are prepared to respond to vulnerabilities like CVE-2022-21635 to protect their data integrity and availability.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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