CVE-2022-21329 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 takeover of MySQL Cluster. CVSS 3.1 Base Score 6.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 01/24/2022
The vulnerability identified as CVE-2022-21329 represents a significant security flaw within Oracle MySQL Cluster implementations, specifically affecting versions up to and including 7.4.34, 7.5.24, 7.6.20, and 8.0.27. This vulnerability resides within the Cluster: General component of the MySQL Cluster product, making it particularly concerning given the distributed nature of cluster environments where multiple nodes communicate across network segments. The CVSS 3.1 base score of 6.3 indicates a medium to high severity threat that impacts confidentiality, integrity, and availability simultaneously, reflecting the comprehensive nature of potential compromise.
The technical exploitation of this vulnerability requires an attacker to possess high privileged access to the physical communication segment connected to the hardware executing the MySQL Cluster, which represents a specific but achievable attack vector. The complexity of exploitation is rated as high, indicating that successful compromise requires sophisticated techniques and specific conditions. However, the vulnerability's classification as difficult to exploit does not diminish its potential impact, as it can be leveraged to achieve complete takeover of the MySQL Cluster environment. The requirement for human interaction from individuals other than the attacker suggests that social engineering or insider threat scenarios could facilitate exploitation, making this vulnerability particularly dangerous in environments where access controls may be less stringent.
The operational impact of successful exploitation can be catastrophic for organizations relying on MySQL Cluster for critical data operations. A complete takeover of the cluster would enable attackers to manipulate database contents, potentially leading to data corruption, unauthorized access to sensitive information, and service disruption across the entire cluster infrastructure. The availability impact is particularly severe as attackers could potentially cause complete system outages or denial of service conditions that would affect business operations. The confidentiality implications extend beyond simple data theft to include the potential for attackers to gain access to the underlying communication protocols and network configurations that govern cluster operations.
Organizations should prioritize immediate assessment of their MySQL Cluster deployments to identify affected versions and implement appropriate mitigations. The vulnerability's classification under CWE categories related to insufficient privileges and network communication security highlights the importance of implementing robust access controls and network segmentation strategies. Mitigation strategies should include upgrading to patched versions of MySQL Cluster, implementing network monitoring to detect unauthorized access to communication segments, and establishing strict physical access controls for hardware infrastructure. The ATT&CK framework's relevance here is evident in the exploitation techniques that would involve network infiltration and privilege escalation, making defensive measures that align with ATT&CK's network infiltration and privilege escalation categories essential for comprehensive protection against this vulnerability.