CVE-2018-2025 in Spectrum Protect Backup-Archive Client
Summary
by MITRE
IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Virtual Environments 7.1 and 8.1 creates directories/files in the CIT sub directory that are read/writable by everyone. IBM X-Force ID: 155551.
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Analysis
by VulDB Data Team • 02/27/2024
The vulnerability identified as CVE-2018-2025 affects IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Virtual Environments versions 7.1 and 8.1, representing a significant security flaw in data protection software widely deployed in enterprise environments. This issue stems from improper file system permissions where the software creates directories and files within the CIT subdirectory with world-readable and world-writable permissions, effectively granting unrestricted access to all system users. The vulnerability exposes sensitive backup data and configuration files that should typically be protected within restricted access environments.
The technical implementation of this flaw involves the backup client's automatic directory creation mechanism during normal operation, where it fails to properly set file permissions for the CIT subdirectory. This creates a persistent security weakness where any user account on the system can read or modify backup-related files, potentially compromising the integrity and confidentiality of backup operations. The vulnerability directly relates to CWE-732, which describes improper permission settings that allow access to resources that should be restricted. From an operational perspective, this flaw creates multiple attack vectors including data exfiltration, backup data manipulation, and potential privilege escalation scenarios.
The operational impact of this vulnerability extends beyond simple permission misconfiguration, as it fundamentally undermines the security posture of backup systems that are typically considered trusted components within enterprise environments. Attackers with basic user-level access can exploit this weakness to access backup credentials, restore points, or manipulate backup operations, potentially leading to complete data compromise or system availability issues. The vulnerability aligns with ATT&CK technique T1070.004, which covers "File Deletion" and related file system manipulation tactics, and also supports T1005, which involves data from local system storage. Organizations using these IBM Spectrum Protect versions face heightened risk during routine backup operations when sensitive data may be exposed through these poorly secured directories.
Mitigation strategies should prioritize immediate permission adjustments to restrict access to the CIT subdirectory, ensuring only authorized system processes and administrators can access these critical backup components. System administrators should implement regular permission audits and consider deploying automated monitoring solutions to detect unauthorized access attempts to backup directories. IBM released patches for affected versions that properly configure directory permissions, and organizations should immediately apply these updates while conducting comprehensive security assessments of their backup infrastructure. Additional defensive measures include implementing network segmentation to limit access to backup systems and establishing strict access control policies for backup client installations. The vulnerability demonstrates the critical importance of proper privilege management in backup and recovery systems, where improper file permissions can create persistent security exposures that undermine the very purpose of data protection mechanisms.