CVE-2022-21333 in MySQL Cluster
Summary
by MITRE • 01/19/2022
Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). Supported versions that are affected are 7.4.34 and prior, 7.5.24 and prior, 7.6.20 and prior and 8.0.27 and prior. Difficult to exploit vulnerability allows high privileged attacker with access to the physical communication segment attached to the hardware where the MySQL Cluster executes to compromise MySQL Cluster. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Cluster accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Cluster. CVSS 3.1 Base Score 2.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:L).
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Analysis
by VulDB Data Team • 01/24/2022
The vulnerability identified as CVE-2022-21333 represents a significant security weakness within Oracle MySQL Cluster implementations that affects multiple version branches including 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier. This issue resides within the Cluster: General component of the MySQL Cluster product line and demonstrates characteristics that align with CWE-284 (Improper Access Control) and CWE-310 (Cryptographic Issues) as defined by the Common Weakness Enumeration framework. The vulnerability's classification as difficult to exploit indicates that while it requires specific conditions to be met, the potential impact on affected systems remains concerning.
The technical flaw manifests when an attacker with high privileged access to the physical communication segment connected to MySQL Cluster hardware can compromise the system. This attack vector requires the attacker to have physical access to the network segment where the cluster operates, which creates a specific operational context. The vulnerability's CVSS 3.1 base score of 2.9 reflects the moderate severity level with confidentiality and availability impacts, indicating that successful exploitation could lead to unauthorized read access to subset of cluster data and partial denial of service conditions. The attack complexity is rated as high (AC:H) due to the requirement for physical network access and the need for human interaction from individuals other than the attacker.
The operational impact of this vulnerability extends beyond simple data exposure to include potential service disruption within the MySQL Cluster environment. The partial denial of service aspect suggests that attackers could degrade system functionality without completely shutting down services, creating ongoing operational challenges for database administrators and system operators. The requirement for human interaction indicates that social engineering or insider threat elements may be necessary components for successful exploitation, making this vulnerability particularly concerning from a risk management perspective. Organizations utilizing affected MySQL Cluster versions face potential data leakage risks and service degradation that could impact business continuity and regulatory compliance requirements.
Mitigation strategies for CVE-2022-21333 should focus on implementing network segmentation controls to limit physical access to cluster hardware and network infrastructure. Organizations should consider deploying network access controls and monitoring systems to detect unauthorized physical access attempts to cluster nodes. The implementation of robust physical security measures, including access control systems and surveillance, becomes critical for preventing exploitation of this vulnerability. Additionally, system administrators should prioritize upgrading to supported versions of MySQL Cluster that have addressed this vulnerability, as the affected versions represent security risks that could be exploited by determined attackers. The vulnerability's classification under the ATT&CK framework would likely map to techniques involving privilege escalation and credential access, making comprehensive security monitoring essential for early detection and response. Regular vulnerability assessments and security audits should be conducted to ensure that network infrastructure remains protected against similar threats that could leverage physical access to compromise database systems.