CVE-2015-0120 in Tivoli Storage Manager Fastback
Summary
by MITRE
Buffer overflow in the FastBackMount process in IBM Tivoli Storage Manager FastBack 6.1 before 6.1.11.1 has unspecified impact and remote attack vectors.
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Analysis
by VulDB Data Team • 05/19/2022
The vulnerability identified as CVE-2015-0120 represents a critical buffer overflow condition within the FastBackMount process of IBM Tivoli Storage Manager FastBack version 6.1 prior to 6.1.11.1. This flaw resides in the handling of input data within the storage management software that is widely deployed across enterprise environments for data protection and backup operations. The buffer overflow vulnerability occurs when the FastBackMount process processes certain input parameters without adequate bounds checking, creating potential avenues for malicious exploitation that could compromise the integrity and availability of critical storage infrastructure.
The technical nature of this vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The FastBackMount process, which serves as a critical component for mounting and accessing backup data, becomes susceptible to exploitation when processing malformed input data through network connections or local interfaces. This particular implementation flaw demonstrates poor memory management practices that enable attackers to manipulate stack or heap memory regions, potentially leading to arbitrary code execution within the context of the running FastBackMount process.
The operational impact of this vulnerability extends beyond simple data corruption or system instability, as it creates potential for remote code execution and privilege escalation within storage management environments. Attackers leveraging this vulnerability could gain unauthorized access to backup data repositories, potentially leading to data theft, system compromise, or disruption of critical backup operations that organizations rely upon for disaster recovery. The unspecified impact designation indicates that the full scope of potential consequences could vary significantly based on the execution environment, system configurations, and network topology of affected deployments. Organizations utilizing IBM Tivoli Storage Manager FastBack in production environments face substantial risk exposure, particularly in scenarios where the FastBackMount process operates with elevated privileges or has network accessibility.
From a threat modeling perspective, this vulnerability maps to several ATT&CK techniques including T1059 for command and scripting interpreter execution, T1068 for exploit for privilege escalation, and T1210 for exploitation of remote services. The remote attack vectors suggest that adversaries could potentially exploit this flaw from external network positions without requiring physical access to affected systems. Organizations should consider implementing network segmentation controls, firewall rules restricting access to FastBack services, and monitoring for anomalous network traffic patterns that might indicate exploitation attempts. The vulnerability underscores the importance of maintaining current security patches for enterprise storage management solutions and implementing robust vulnerability management processes that can quickly identify and remediate similar flaws across complex IT infrastructures.
Mitigation strategies should prioritize immediate deployment of IBM's official security patches and updates for the Tivoli Storage Manager FastBack software, particularly focusing on version 6.1.11.1 and subsequent releases. Network-based mitigations including firewall rules limiting access to FastBack services, intrusion detection system monitoring for suspicious traffic patterns, and regular vulnerability scanning should complement the patching efforts. System hardening measures such as disabling unnecessary network services, implementing least privilege access controls for FastBack processes, and conducting regular security assessments of storage management infrastructure will further reduce the attack surface. Organizations should also establish incident response procedures specifically tailored to storage system vulnerabilities and maintain detailed inventory records of all FastBack installations to ensure comprehensive remediation coverage across their enterprise environments.