CVE-2018-1433 in SAN Volume Controller
Summary
by MITRE
IBM SAN Volume Controller, IBM Storwize, IBM Spectrum Virtualize and IBM FlashSystem products ( 6.1, 6.2, 6.3, 6.4, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.6.1, 7.7, 7.7.1, 7.8, 7.8.1, 8.1, and 8.1.1) web handler /DownloadFile does not require authentication to read arbitrary files from the system. IBM X-Force ID: 139473.
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Analysis
by VulDB Data Team • 03/14/2023
The vulnerability identified as CVE-2018-1433 affects multiple IBM storage virtualization and management products including the SAN Volume Controller, Storwize, Spectrum Virtualize, and FlashSystem series across numerous software versions. This authentication bypass flaw exists within the web handler component specifically at the /DownloadFile endpoint, creating a critical security weakness that allows unauthorized access to sensitive system files. The vulnerability represents a fundamental failure in access control mechanisms, where legitimate authentication checks are completely bypassed, enabling malicious actors to retrieve arbitrary files from the underlying system without proper authorization.
The technical implementation of this vulnerability stems from improper input validation and access control enforcement within the web application layer of these storage management systems. When a request is made to the /DownloadFile handler, the system fails to verify whether the requesting user possesses appropriate credentials or permissions before processing the file retrieval request. This flaw directly maps to CWE-285, which addresses improper authorization within software applications, and aligns with ATT&CK technique T1213.002 related to data from information repositories. The affected products operate within enterprise storage environments where they handle critical system data, configuration files, and potentially sensitive operational information, making this vulnerability particularly dangerous.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the ability to access system configuration files, user credentials, and potentially sensitive operational data that could be used for further exploitation. Attackers could leverage this vulnerability to obtain system-level information that would normally be restricted to authorized administrators, potentially enabling them to craft more sophisticated attacks or identify additional system weaknesses. The vulnerability affects a wide range of IBM storage solutions that are commonly deployed in enterprise environments, making it a significant risk across multiple organizational assets. Security teams would need to assess all impacted systems and potentially re-evaluate their overall security posture when this vulnerability is present in their storage infrastructure.
Organizations should implement immediate mitigations including applying the relevant IBM security patches and updates, implementing network segmentation to limit access to these management interfaces, and reviewing access controls to ensure only authorized personnel can reach the affected endpoints. Additional defensive measures such as monitoring for unusual file download requests, implementing web application firewalls, and conducting comprehensive vulnerability assessments of storage management systems would help reduce the risk exposure. The vulnerability demonstrates the critical importance of proper authentication enforcement in web applications, particularly those managing sensitive enterprise infrastructure, and underscores the need for continuous security testing and validation of access control mechanisms.