CVE-2018-2920 in Sun ZFS Storage Appliance Kit (AK)
Summary
by MITRE
Vulnerability in the Sun ZFS Storage Appliance Kit (AK) component of Oracle Sun Systems Products Suite (subcomponent: API frameworks). The supported version that is affected is Prior to 8.7.19. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise Sun ZFS Storage Appliance Kit (AK). While the vulnerability is in Sun ZFS Storage Appliance Kit (AK), attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Sun ZFS Storage Appliance Kit (AK) accessible data as well as unauthorized read access to a subset of Sun ZFS Storage Appliance Kit (AK) accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Sun ZFS Storage Appliance Kit (AK). CVSS 3.0 Base Score 7.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L).
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Analysis
by VulDB Data Team • 04/18/2023
The vulnerability identified as CVE-2018-2920 resides within the Sun ZFS Storage Appliance Kit component of Oracle's Sun Systems Products Suite, specifically affecting the API frameworks subcomponent. This flaw impacts versions prior to 8.7.19 and represents a critical security weakness that can be exploited by low-privileged attackers with network access through multiple protocols. The vulnerability's classification as easily exploitable indicates that attackers with minimal privileges and network connectivity can successfully compromise the affected system, making it particularly concerning for enterprise environments that rely on ZFS storage solutions.
The technical nature of this vulnerability stems from insufficient input validation and access control mechanisms within the API frameworks of the ZFS Storage Appliance Kit. Attackers can leverage this weakness to perform unauthorized operations including data modification, deletion, and insertion within the appliance's accessible data stores. The vulnerability's impact extends beyond the immediate component to potentially affect other products within the Oracle Sun Systems Products Suite, demonstrating the interconnected nature of enterprise storage solutions. The CVSS 3.0 score of 7.4 reflects the moderate to high severity of the flaw, with equal emphasis on confidentiality, integrity, and availability impacts that aligns with common security principles outlined in the Common Weakness Enumeration framework.
The operational consequences of this vulnerability are significant for organizations utilizing Sun ZFS Storage Appliances, as successful exploitation can result in unauthorized data access and modification. The partial denial of service capability means that attackers can disrupt system operations without completely taking down the appliance, creating ongoing operational challenges for administrators. The vulnerability's network-based attack vector through multiple protocols suggests that attackers can exploit it from various connection points, increasing the attack surface and making defense-in-depth strategies essential for protection. Organizations may face data integrity issues, unauthorized data disclosure, and potential service disruption that could impact business continuity and regulatory compliance requirements.
Mitigation strategies for CVE-2018-2920 should prioritize immediate patching of affected systems to version 8.7.19 or later, as this represents the primary defense against exploitation. Network segmentation and access control measures should be implemented to limit network access to the affected appliance, particularly restricting access to the API frameworks from untrusted networks. Regular security audits and monitoring of system logs should be conducted to detect potential exploitation attempts, with security controls aligned with the ATT&CK framework's defensive strategies for API and service exploitation. Additionally, organizations should implement robust network monitoring solutions to identify anomalous access patterns that could indicate exploitation attempts, while maintaining detailed incident response procedures to address potential security breaches. The vulnerability's characteristics align with common attack patterns documented in cybersecurity frameworks, emphasizing the importance of maintaining up-to-date security patches and implementing comprehensive access control policies across enterprise storage infrastructure.