CVE-2018-1550 in Spectrum Protect
Summary
by MITRE
IBM Spectrum Protect 7.1 and 8.1 could allow a local user to corrupt or delete highly sensitive information that would cause a denial of service to other users. IBM X-Force ID: 142696.
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Analysis
by VulDB Data Team • 05/19/2023
IBM Spectrum Protect versions 7.1 and 8.1 contain a local privilege escalation vulnerability that enables authenticated users to corrupt or delete critical system data leading to denial of service conditions. This flaw resides in the software's handling of file permissions and access controls within the backup and recovery environment. The vulnerability allows local attackers with minimal privileges to manipulate core system files and directories that contain sensitive operational data including configuration settings, backup catalogs, and user authentication information. When exploited, this weakness can result in complete system disruption and data loss affecting multiple users within the protected environment.
The technical implementation of this vulnerability stems from inadequate input validation and insufficient privilege separation mechanisms within the IBM Spectrum Protect framework. Attackers can leverage this flaw to gain unauthorized access to system resources that should normally be restricted to administrative users or system processes. The exploitation typically involves crafting specific file operations or directory traversal sequences that bypass normal access controls. This weakness aligns with CWE-269 which describes improper privilege management in software systems, and represents a classic case of insufficient access control validation that enables unauthorized data manipulation.
The operational impact of this vulnerability extends beyond simple data corruption as it fundamentally compromises the integrity and availability of the backup infrastructure. When sensitive system files are modified or deleted, the entire backup and recovery process becomes compromised, potentially leading to complete loss of backup data and inability to restore critical business information. Multiple users within the organization may experience service disruption as the system fails to maintain consistent operational states. The vulnerability particularly affects organizations relying on IBM Spectrum Protect for enterprise backup operations where data availability and integrity are paramount for business continuity and disaster recovery planning.
Organizations should implement immediate mitigations including applying the vendor-provided security patches and updates for IBM Spectrum Protect versions 7.1 and 8.1. System administrators should conduct comprehensive access control reviews to ensure that local user privileges are properly restricted and that unnecessary permissions are removed from non-administrative accounts. Network segmentation and monitoring should be enhanced to detect anomalous file access patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of maintaining least privilege principles and regular security assessments as outlined in the NIST Cybersecurity Framework. Additionally, implementing automated monitoring solutions that track system file integrity and access logs can provide early detection capabilities for similar privilege escalation attacks. Organizations should also consider implementing the principle of defense in depth by combining multiple security controls including endpoint protection, network monitoring, and regular security audits to prevent exploitation of this class of vulnerabilities.