CVE-2018-2937 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: User Interface). The supported version that is affected is Prior to 8.7.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Sun ZFS Storage Appliance Kit (AK). 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. CVSS 3.0 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).
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Analysis
by VulDB Data Team • 04/18/2023
The CVE-2018-2937 vulnerability resides within the Sun ZFS Storage Appliance Kit component of Oracle's Sun Systems Products Suite, specifically affecting the User Interface subcomponent. This vulnerability represents a critical security flaw that impacts systems running versions prior to 8.7.19, exposing organizations to significant operational risks. The vulnerability's classification as easily exploitable indicates that attackers can leverage network-based attacks without requiring authentication or specialized privileges, making it particularly dangerous in enterprise environments where storage appliances often serve as critical infrastructure components.
The technical flaw manifests through insufficient access controls within the web-based user interface of the ZFS Storage Appliance Kit, allowing unauthenticated remote attackers to execute unauthorized operations against the system. This weakness specifically enables attackers to perform update, insert, or delete operations on accessible data within the appliance's storage environment, though the integrity impact is limited to data manipulation rather than complete system compromise. The CVSS 3.0 scoring of 5.3 reflects the moderate severity of the vulnerability, with the base vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N indicating network-based attack surface, low attack complexity, no privileges required, no user interaction needed, and unscoped system impact.
From an operational perspective, this vulnerability creates substantial risk for organizations relying on ZFS Storage Appliances for their data storage infrastructure, as unauthorized data modification can lead to data corruption, loss of data integrity, and potential business disruption. The vulnerability's impact extends beyond simple data manipulation to potentially compromise the reliability of storage operations and the trustworthiness of stored information. Security professionals should note that this vulnerability aligns with CWE-284 (Improper Access Control) and represents a classic example of insufficient authorization checks in web interfaces, which is frequently observed in storage and enterprise appliance environments.
Organizations should prioritize immediate remediation through patch management processes to upgrade affected systems to version 8.7.19 or later, as this represents the most effective mitigation strategy. Network segmentation and access control measures can provide additional defense-in-depth, though they do not eliminate the core vulnerability. The ATT&CK framework categorizes this vulnerability under T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS), as attackers would likely leverage HTTP protocols to exploit the unauthenticated access point. Regular vulnerability scanning and monitoring of storage appliance configurations should be implemented to identify and remediate similar weaknesses in other components of the storage infrastructure.