CVE-2019-4259 in Spectrum Scale
Summary
by MITRE
A security vulnerability has been identified in IBM Spectrum Scale 4.1.1, 4.2.0, 4.2.1, 4.2.2, 4.2.3, and 5.0.0 with CES stack enabled that could allow sensitive data to be included with service snaps. IBM X-Force ID: 160011.
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Analysis
by VulDB Data Team • 09/17/2023
The vulnerability identified in IBM Spectrum Scale versions 4.1.1 through 5.0.0 with CES stack enabled represents a significant security flaw that could potentially expose sensitive data through service snapshots. This issue affects a widely deployed storage management platform that provides distributed file system capabilities for enterprise environments. The vulnerability specifically relates to how service snapshots are generated and handled within the system, creating an avenue for unauthorized data exposure.
The technical flaw stems from inadequate data sanitization during the service snapshot creation process. When the CES (Cluster Edition Services) stack is enabled, the system fails to properly filter or remove sensitive information that may be present in the service configuration or operational data. This oversight allows potentially confidential data including authentication credentials, system configuration details, or operational parameters to be inadvertently included in the snapshot files. The vulnerability manifests during the snapshot generation phase where the system does not adequately validate or sanitize the data being captured, leading to the inclusion of sensitive material in what should be a standard operational backup.
The operational impact of this vulnerability extends beyond simple data exposure concerns. Organizations relying on IBM Spectrum Scale for critical storage operations face potential security breaches that could compromise their entire storage infrastructure. The inclusion of sensitive data in service snapshots creates a persistent risk where compromised snapshot files could provide attackers with valuable information for further exploitation. This vulnerability particularly affects environments where the CES stack is actively used, as the snapshot functionality becomes a vector for data leakage. The risk is amplified in multi-tenant or regulated environments where data protection and privacy compliance are critical requirements.
Mitigation strategies for this vulnerability should focus on immediate configuration adjustments and enhanced monitoring protocols. Organizations should disable the CES stack functionality if it is not essential for their operations, or implement additional data sanitization measures before snapshot creation. The recommended approach includes implementing strict data filtering policies that prevent sensitive information from being captured in service snapshots. Security teams should also establish regular audit procedures to review snapshot contents and ensure no unauthorized data is being stored. According to CWE classification, this vulnerability aligns with CWE-200: Information Exposure, while the ATT&CK framework would categorize this under T1566: Phishing with Malicious Attachments and potentially T1078: Valid Accounts as the compromised data could enable further unauthorized access attempts. Organizations should also consider implementing network segmentation and access controls around snapshot storage locations to minimize the potential impact of any data leakage that might occur despite mitigation efforts.