CVE-2026-14375 in Storage Scale
Summary
by MITRE • 11/08/2026
IBM Storage Scale 5.2.3.0 through 5.2.3.8, and 6.0.1.0 does not validate or improperly validates TLS certificate validation when communicating with remote cluster GUI interfaces, which could allow an attacker to inject forged JSON responses using man in the middle techniques.
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Analysis
by VulDB Data Team • 11/08/2026
The vulnerability identified in IBM Storage Scale versions 5.2.3.0 through 5.2.3.8 and version 6.0.1.0 represents a critical failure in Transport Layer Security (TLS) certificate validation during communications with remote cluster Graphical User Interface interfaces. This flaw stems from an improper implementation of the TLS handshake process, where the client application fails to rigorously verify the authenticity of the server's digital certificate against trusted Certificate Authorities or expected hostnames. In a properly secured environment, any discrepancy in the certificate chain, expiration status, or hostname mismatch should trigger an immediate termination of the connection to prevent unauthorized access. However, due to this validation bypass, the software accepts connections from unverified endpoints, effectively nullifying one of the primary defenses against network-based attacks.
This technical deficiency creates a significant opportunity for Man-in-the-Middle (MitM) attackers positioned between the client and the remote cluster GUI. By intercepting the communication channel without triggering certificate errors, an attacker can decrypt or manipulate the data stream in transit. The specific impact highlighted is the ability to inject forged JSON responses into the application logic. Since IBM Storage Scale relies heavily on structured data exchanges for managing storage resources, volume configurations, and cluster states, accepting manipulated JSON payloads allows an adversary to alter system behavior without detection by standard security monitoring tools that may not inspect payload content at this layer.
The operational impact of such a vulnerability is severe, potentially leading to unauthorized configuration changes, data exfiltration, or denial of service conditions. An attacker could modify critical storage policies, redirect traffic to malicious nodes, or inject malware through the GUI interface under the guise of legitimate administrative commands. This compromises the integrity and confidentiality of the entire storage infrastructure managed by IBM Storage Scale. The ability to spoof responses means that administrators may unknowingly execute actions based on false information, leading to potential data loss or system instability across the distributed cluster environment.
From a classification perspective, this vulnerability aligns with CWE-295 Improper Certificate Validation and CWE-319 Cleartext Transmission of Sensitive Information within an IMPLICITly Secure Channel. It also maps to MITRE ATT&CK techniques such as T1078 Valid Accounts if combined with credential theft or T1046 Network Service Discovery when used for reconnaissance, but most directly relates to interception and manipulation tactics described under network sniffing and protocol injection vectors. The failure lies not in the encryption itself but in the validation logic that determines whether an encrypted connection is trustworthy.
To mitigate this risk, immediate patching to a version of IBM Storage Scale where TLS certificate validation is correctly implemented is required. Administrators should ensure that all remote cluster GUI interfaces enforce strict hostname verification and chain-of-trust validation for all incoming connections. Additionally, implementing mutual TLS authentication can provide an extra layer of security by requiring both client and server to present valid certificates before establishing a session. Network segmentation strategies should also be reviewed to limit exposure of management interfaces to untrusted networks, ensuring that only authorized subnets can initiate GUI sessions with the storage cluster nodes.