CVE-2018-2918 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 8.7.18. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Sun ZFS Storage Appliance Kit (AK). Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Sun ZFS Storage Appliance Kit (AK). CVSS 3.0 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 04/18/2023
The vulnerability identified as CVE-2018-2918 resides within the Sun ZFS Storage Appliance Kit component of Oracle's Sun Systems Products Suite, specifically affecting the API frameworks subcomponent. This weakness impacts versions prior to 8.7.18, representing a significant security gap in enterprise storage infrastructure that could potentially affect organizations relying on ZFS storage solutions for critical data management operations. The vulnerability's classification as difficult to exploit indicates that while the attack vector is not trivial, it remains a genuine threat to system security and data integrity.
This vulnerability operates through multiple network protocols and requires unauthenticated access, making it particularly dangerous as it can be exploited without prior authorization or credentials. The CVSS 3.0 scoring of 7.5 reflects the high severity impact across all three core security principles: confidentiality, integrity, and availability. The attack requires human interaction from an individual other than the attacker, suggesting that social engineering or user manipulation might be necessary to facilitate the exploitation process. The successful compromise of the appliance could lead to complete takeover, potentially allowing attackers to gain full administrative control over the storage infrastructure.
The technical flaw manifests in the API frameworks handling within the ZFS Storage Appliance Kit, where insufficient input validation or improper access controls may allow malicious actors to manipulate the system's application programming interfaces. This type of vulnerability typically falls under CWE-20 (Improper Input Validation) or similar weakness categories related to API security flaws. The attack vector through multiple protocols indicates that the vulnerability may exist across different communication channels or service interfaces within the appliance's architecture, expanding the potential attack surface.
Organizations utilizing affected versions of the Sun ZFS Storage Appliance Kit should prioritize immediate remediation through patching to version 8.7.18 or later, as this represents the most direct mitigation strategy. Network segmentation and firewall rules should be implemented to limit unnecessary access to the appliance's API endpoints, while monitoring systems should be deployed to detect anomalous behavior that might indicate exploitation attempts. The vulnerability's requirement for human interaction suggests that user awareness training and security protocols should be reinforced to prevent social engineering attacks that might facilitate exploitation.
The operational impact of this vulnerability extends beyond simple data compromise, as the complete takeover capability could allow attackers to manipulate storage configurations, access sensitive data, or disrupt critical business operations. The availability impact is particularly concerning given that storage appliances typically serve as foundational infrastructure components for enterprise data management. Organizations should conduct comprehensive security assessments of their ZFS environments and review access controls to ensure that only authorized personnel can interact with the appliance's administrative interfaces. The ATT&CK framework would categorize this vulnerability under techniques related to exploitation of remote services and privilege escalation, potentially enabling attackers to establish persistent access to storage infrastructure and move laterally within network environments.