CVE-2023-25536 in PowerScale OneFS
Summary
by MITRE • 03/02/2023
Dell PowerScale OneFS 9.4.0.x contains exposure of sensitive information to an unauthorized actor. A malicious authenticated local user could potentially exploit this vulnerability in certificate management, leading to a potential system takeover.
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Analysis
by VulDB Data Team • 03/02/2023
The vulnerability identified as CVE-2023-25536 affects Dell PowerScale OneFS version 9.4.0.x and represents a critical exposure of sensitive information to unauthorized actors. This flaw specifically impacts the certificate management functionality within the system, creating potential pathways for malicious authenticated local users to exploit the weakness. The vulnerability resides in the improper handling of cryptographic materials and certificate data, which could allow an attacker with local access to extract sensitive information that should remain protected within the system's security boundaries. Such exposure creates significant risk for organizations relying on Dell PowerScale storage solutions for their data infrastructure.
The technical implementation of this vulnerability stems from inadequate access controls and insufficient sanitization of certificate-related data within the OneFS operating system. When certificate management operations occur, sensitive information including private keys, certificate chains, and cryptographic parameters may be inadvertently exposed through improper file permissions, insecure data handling practices, or flawed privilege escalation mechanisms. The vulnerability specifically targets the certificate management subsystem where authentication tokens, encryption keys, and other sensitive cryptographic materials are processed and stored. This flaw allows authenticated local users to potentially access certificate stores, key repositories, and related cryptographic data that should only be accessible to authorized system administrators or specific security services.
The operational impact of CVE-2023-25536 extends beyond simple information disclosure, as the exposure of certificate materials could lead to full system compromise and unauthorized access to protected data. An attacker exploiting this vulnerability could potentially impersonate legitimate system components, decrypt sensitive communications, or establish persistence within the storage environment. The risk escalates when considering that the vulnerability affects the core certificate management functionality, which is fundamental to maintaining secure communications and access control within enterprise storage systems. This exposure could enable attackers to perform man-in-the-middle attacks, compromise data integrity, or gain elevated privileges within the storage infrastructure. The potential for system takeover increases significantly when attackers can leverage exposed certificates to authenticate as legitimate system components or users.
Organizations should immediately implement mitigations including applying the latest security patches provided by Dell, reviewing and hardening certificate management configurations, and implementing strict access controls for local system accounts. Security teams should conduct comprehensive audits of certificate stores and cryptographic materials to identify any potential unauthorized access or exposure. The vulnerability aligns with CWE-200, which addresses exposure of sensitive information, and may map to ATT&CK techniques involving privilege escalation and credential access. Network segmentation and monitoring for unusual certificate-related activities should be implemented as additional protective measures. System administrators should also consider implementing automated certificate lifecycle management processes to reduce the attack surface and ensure proper handling of sensitive cryptographic materials throughout their operational lifecycle.