CVE-2022-23705 in Nimble Storage Hybrid Flash Array
Summary
by MITRE • 05/10/2022
A security vulnerability has been identified in HPE Nimble Storage Hybrid Flash Arrays, HPE Nimble Storage All Flash Arrays, and HPE Nimble Storage Secondary Flash Arrays which could potentially allow the upload, but not execution, of unauthorized update binaries to the array. HPE has made the following software updates to resolve the vulnerability in HPE Nimble Storage: 5.0.10.100 or later, 5.2.1.0 or later, 6.0.0.100 or later.
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Analysis
by VulDB Data Team • 05/12/2022
The vulnerability identified as CVE-2022-23705 represents a critical security flaw in HPE Nimble Storage array systems that affects multiple hardware configurations including hybrid flash, all flash, and secondary flash arrays. This vulnerability falls under the category of improper input validation and weak security controls within firmware update mechanisms. The issue stems from insufficient validation processes that permit unauthorized binary file uploads to storage arrays, creating a potential vector for malicious actors to introduce unauthorized software components into the system infrastructure. The vulnerability is particularly concerning because it operates within the firmware update pathway, which is a privileged system component that typically requires strict authentication and authorization controls.
The technical implementation of this vulnerability involves a failure in the array's firmware update validation procedures that allows for the upload of unauthorized binary files without proper execution controls. According to CWE-434, this represents a weakness where software accepts a file from an untrusted source without sufficient validation, potentially leading to arbitrary code execution or system compromise. The flaw exists in the array's update management system where the authentication and authorization mechanisms are insufficient to prevent unauthorized file transfers, even though the system does not permit direct execution of these files. This creates a dangerous scenario where attackers could potentially upload malicious firmware components that might be executed during subsequent system updates or maintenance operations.
The operational impact of CVE-2022-23705 extends beyond simple file upload capabilities and represents a significant threat to storage array integrity and overall system security. Attackers exploiting this vulnerability could potentially introduce backdoors, modify system behavior, or create persistent access points within the storage infrastructure. The vulnerability creates a potential attack surface that aligns with ATT&CK technique T1078.004 which focuses on valid accounts and T1547.001 which covers registry run keys. Organizations using affected HPE Nimble Storage arrays face risks of unauthorized system modifications, data integrity compromises, and potential escalation to broader network infiltration through compromised storage infrastructure. The vulnerability is particularly dangerous in enterprise environments where storage arrays serve as critical infrastructure components for data management and business operations.
Mitigation strategies for CVE-2022-23705 require immediate implementation of the recommended software updates provided by HPE to resolve the vulnerability. System administrators should deploy firmware versions 5.0.10.100 or later, 5.2.1.0 or later, or 6.0.0.100 or later across all affected storage arrays. Additional security measures should include network segmentation of storage management interfaces, implementation of strict access controls for update operations, and monitoring for unauthorized file transfer activities. Organizations should also conduct comprehensive vulnerability assessments of their storage infrastructure to identify any potential exploitation attempts. The mitigation approach aligns with security frameworks such as NIST SP 800-53 controls and ISO 27001 requirements for system integrity and change management. Regular security audits and continuous monitoring of storage array update mechanisms are essential to prevent future exploitation attempts and maintain system security posture.