CVE-2026-79687 in PowerStore 1000T
Summary
by MITRE • 09/01/2026
Dell PowerStore SDNAS contains a Missing Authentication for Critical Function vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Filesystem access.
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Analysis
by VulDB Data Team • 09/01/2026
The identified vulnerability in Dell PowerStore Storage Data Network Appliance Software (SDNAS) represents a critical security flaw classified as missing authentication for a critical function. This type of defect fundamentally undermines the integrity of the system's access control mechanisms by allowing operations that require elevated privileges to be executed without verifying the identity or authorization level of the requesting entity. In enterprise storage environments, such vulnerabilities are particularly severe because they can expose sensitive data structures and administrative controls to unauthorized parties who have achieved network-level connectivity to the affected appliance.
From a technical perspective, this flaw indicates that specific endpoints or API functions within the SDNAS interface do not enforce mandatory authentication checks before processing requests. An attacker with remote access capabilities, potentially through compromised credentials on an adjacent network segment or via exposed management interfaces, can interact directly with these unprotected functions. The absence of proper session validation allows the adversary to bypass standard login procedures and execute commands that are intended only for authenticated administrators. This lack of enforcement creates a direct pathway for privilege escalation and unauthorized system manipulation.
The operational impact of this vulnerability is significant, primarily centered around unrestricted filesystem access. By exploiting this missing authentication mechanism, an attacker can read, modify, or delete critical files on the storage array. This capability compromises data confidentiality by allowing the exfiltration of sensitive customer information stored within the SAN environment. Furthermore, it threatens data integrity and availability, as malicious actors could corrupt system configurations or essential operational files, potentially leading to service disruptions or complete loss of access to managed storage resources. The ability to manipulate filesystems also facilitates further lateral movement within the network infrastructure by planting backdoors or modifying security logs to cover tracks.
This vulnerability aligns with CWE-306, which describes a missing authentication for critical function, and maps closely to MITRE ATT&CK techniques related to unauthorized access and privilege escalation. Specifically, it relates to Initial Access vectors where attackers exploit misconfigurations in web applications or APIs that fail to validate user permissions before executing sensitive operations. The exploitation path typically involves crafting specific HTTP requests or API calls targeting the vulnerable endpoints without providing valid session tokens or authentication headers, relying on the system's failure to reject such unauthenticated attempts.
Mitigation strategies must prioritize immediate patching of the Dell PowerStore SDNAS software to the latest version provided by the vendor, which includes fixes for this authentication bypass issue. In addition to applying patches, organizations should implement strict network segmentation policies to restrict access to management interfaces and storage control planes from untrusted networks. Implementing multi-factor authentication for all administrative accounts adds an additional layer of defense against credential theft or reuse attacks that might precede exploitation of this flaw. Regular security audits and penetration testing focused on API endpoints can help identify similar misconfigurations before they are exploited in the wild, ensuring a robust posture against unauthorized filesystem access and other critical function abuses.