CVE-2026-79683 in PowerStore
Summary
by MITRE • 09/01/2026
Dell PowerStore contains a Protection Mechanism Failure vulnerability. An authenticated user with limited privileges could potentially exploit this vulnerability to write attacker-controlled content to arbitrary filesystem paths.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 09/01/2026
The identified vulnerability in Dell PowerStore represents a critical failure in the system's access control mechanisms, specifically categorized under CWE-269 Improper Privilege Management and CWE-732 Incorrect Permission Assignment for Critical Resource. This flaw allows an authenticated user operating with limited or standard privileges to bypass intended security restrictions. The core technical issue lies in the insufficient validation of permissions when handling file write operations within the underlying filesystem architecture. Instead of strictly enforcing role-based access controls that restrict users to their designated directories and configuration scopes, the system fails to verify whether the requesting entity possesses administrative rights for specific high-impact paths. This misconfiguration effectively creates a privilege escalation vector where low-level accounts can interact with sensitive areas of the operating system or application storage intended exclusively for root or administrator processes.
From an operational perspective, this vulnerability poses severe risks to data integrity and system stability. An attacker who successfully exploits this flaw could overwrite critical configuration files, inject malicious scripts into executable directories, or corrupt essential log files that are used for auditing and forensic analysis. By writing arbitrary content to these paths, the adversary can potentially establish persistence mechanisms, disrupt service availability by damaging core application binaries, or manipulate security logs to cover their tracks. The ability to write to arbitrary filesystem locations also facilitates further exploitation chains, such as modifying environment variables or configuration parameters that control authentication protocols, thereby enabling more sophisticated attacks like remote code execution if combined with other vulnerabilities in the stack.
This type of vulnerability aligns closely with MITRE ATT&CK technique T1078 Valid Accounts and specifically relates to lateral movement or privilege escalation tactics where attackers leverage legitimate credentials to access resources they should not have permission to modify. The lack of strict path validation during write operations is a common pattern in complex enterprise storage systems, often resulting from overly permissive default configurations or insufficient code review regarding file system interactions. It highlights the importance of implementing principle of least privilege rigorously across all components of the management interface and backend services that handle user input related to file paths.
To mitigate this risk, immediate action is required to apply vendor-provided patches that address the permission checks within the affected versions of Dell PowerStore software. Administrators should ensure that their systems are updated to the latest stable release which includes fixes for CWE-269 and related access control flaws. In addition to patching, organizations should review user role assignments to ensure that no non-administrative users have unnecessary write permissions on shared or system directories. Implementing strict input validation at the application layer to sanitize file paths before processing them can also help prevent exploitation attempts. Regular audits of filesystem permissions and monitoring for unusual write activities in critical directories are recommended as supplementary defensive measures to detect potential abuse of this vulnerability while patches are being deployed.