CVE-2023-43087 in PowerScale OneFS
Summary
by MITRE • 11/02/2023
Dell PowerScale OneFS 8.2.x, 9.0.0.x-9.5.0.x contains an improper handling of insufficient permissions. A low privileged remote attacker could potentially exploit this vulnerability to cause information disclosure.
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Analysis
by VulDB Data Team • 02/20/2026
The vulnerability identified as CVE-2023-43087 affects Dell PowerScale OneFS storage systems running versions 8.2.x through 9.5.0.x, representing a critical weakness in the platform's access control mechanisms. This issue stems from improper handling of insufficient permissions within the system's authentication and authorization framework, creating a potential vector for information disclosure attacks. The vulnerability specifically impacts the storage array's ability to properly enforce access controls when processing requests from authenticated users who lack appropriate privileges for requested operations.
The technical flaw manifests in how the OneFS operating system manages permission checks during data access operations. When a low-privileged remote attacker successfully authenticates to the system, the platform fails to properly validate whether the user has adequate permissions to access specific data sets or system information. This misconfiguration allows attackers to potentially bypass intended access restrictions and gain unauthorized visibility into files, directories, or system metadata that should be restricted to higher-privileged users or administrative roles. The vulnerability operates at the application layer and leverages the system's insufficient validation of user permissions during file system operations.
From an operational perspective, this vulnerability poses significant risks to organizations relying on Dell PowerScale storage solutions for sensitive data management. Attackers could potentially exploit this weakness to access confidential files, system logs, or configuration data that would normally be protected from lower-privileged accounts. The impact extends beyond simple information disclosure as it could enable further exploitation attempts, including privilege escalation or lateral movement within the storage network. Organizations with extensive data repositories on affected systems face potential exposure of intellectual property, customer data, or internal operational information that could compromise business continuity and regulatory compliance.
Security practitioners should consider this vulnerability in the context of CWE-284, which addresses improper access control issues in software systems. The flaw aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential access, as attackers could potentially leverage this weakness to escalate privileges or gain access to additional system resources. Organizations should immediately implement mitigations including applying the latest firmware updates from Dell, reviewing and tightening access control policies, monitoring for unusual authentication patterns, and conducting comprehensive access reviews. Network segmentation and monitoring of storage system communications should be enhanced to detect potential exploitation attempts. The vulnerability underscores the importance of proper privilege management and access control validation in enterprise storage systems, particularly those handling sensitive organizational data.