CVE-2021-39232 in Ozone
Summary
by MITRE • 11/19/2021
In Apache Ozone versions prior to 1.2.0, certain admin related SCM commands can be executed by any authenticated users, not just by admins.
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Analysis
by VulDB Data Team • 11/22/2021
Apache Ozone represents a distributed object storage system designed to provide scalable and secure data storage solutions within big data environments. The vulnerability described in CVE-2021-39232 specifically targets the Storage Container Manager component which serves as the central administrative controller for managing storage containers and their associated metadata. This flaw exists in versions prior to 1.2.0 and creates a critical privilege escalation risk by allowing any authenticated user to execute administrative commands that should be restricted to authorized administrators only.
The technical implementation of this vulnerability stems from insufficient access control mechanisms within the SCM administrative command processing subsystem. When users authenticate to the system, they are granted specific permission levels based on their credentials and roles. However, the flawed authorization logic fails to properly validate whether the requesting user possesses the necessary administrative privileges before executing sensitive operations. This misconfiguration allows authenticated users to bypass normal access controls and invoke commands such as container creation, deletion, configuration changes, and other administrative functions that directly impact the storage infrastructure's operation and security posture.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential system compromise and data integrity violations. An attacker who gains access to any authenticated account can escalate privileges to administrative levels without proper authorization, potentially leading to unauthorized data modification, deletion of critical storage containers, disruption of storage services, or manipulation of container metadata. This vulnerability directly violates the principle of least privilege and can enable attackers to gain complete control over the storage container management system, affecting the availability, confidentiality, and integrity of stored data. The implications are particularly severe in enterprise environments where Apache Ozone serves as a foundational storage component for critical applications and data processing pipelines.
Organizations should immediately upgrade to Apache Ozone version 1.2.0 or later to remediate this vulnerability, as this release includes proper access control enforcement mechanisms. Additional mitigation strategies include implementing network segmentation to limit access to SCM administrative endpoints, configuring robust authentication mechanisms with strong credential policies, and establishing comprehensive monitoring of administrative command execution logs. The vulnerability aligns with CWE-284 which describes improper access control issues, and represents a specific implementation of the broader ATT&CK technique T1078 for valid accounts and privilege escalation. System administrators should also consider implementing additional security controls such as mandatory access controls, role-based access control enforcement, and regular security audits of administrative access patterns to detect potential exploitation attempts.