CVE-2007-0168 in Brightstor Enterprise Backup
Summary
by MITRE
The Tape Engine service in Computer Associates (CA) BrightStor ARCserve Backup 9.01 through 11.5, Enterprise Backup 10.5, and CA Server/Business Protection Suite r2 allows remote attackers to execute arbitrary code via certain data in opnum 0xBF in an RPC request, which is directly executed.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2007-0168 represents a critical remote code execution flaw within the Tape Engine service component of Computer Associates BrightStor ARCserve Backup and related products. This vulnerability affects multiple versions including BrightStor ARCserve Backup 9.01 through 11.5, Enterprise Backup 10.5, and CA Server/Business Protection Suite r2, making it a widespread concern for organizations relying on these backup solutions. The flaw exists in how the service processes Remote Procedure Call (RPC) requests, specifically when handling opnum 0xBF operations, creating an avenue for remote attackers to gain unauthorized system access and execute malicious code directly on affected systems.
The technical nature of this vulnerability stems from improper input validation within the Tape Engine service's RPC handling mechanism. When the service receives an RPC request with opnum 0xBF, it processes the data without adequate sanitization or bounds checking, allowing attackers to craft specially formatted payloads that get directly executed by the system. This type of vulnerability falls under CWE-121, which describes buffer overflow conditions where data is copied into a buffer without proper bounds checking, and more specifically aligns with CWE-78, which covers improper neutralization of special elements used in OS commands. The vulnerability operates at the system level where the service processes untrusted data, creating a direct path for privilege escalation and system compromise.
From an operational perspective, this vulnerability presents a severe risk to enterprise backup infrastructure and data protection systems. Attackers can exploit this weakness remotely without requiring authentication, potentially gaining full system control over backup servers that are often critical components of enterprise IT infrastructure. The impact extends beyond simple code execution as compromised backup servers could provide attackers with access to backup data, potentially enabling data exfiltration, system disruption, or further lateral movement within the network. Organizations with distributed backup environments may face cascading security failures if multiple backup servers across different locations are affected by this vulnerability. The nature of backup systems also means that attackers could potentially manipulate backup data or create persistent backdoors through compromised backup infrastructure.
The attack surface for this vulnerability is significant given that backup servers are typically accessible over networks and may have elevated privileges necessary for backup operations. According to ATT&CK framework, this vulnerability maps to T1059.007 for execution through command and scripting interpreter and T1068 for bypassing security restrictions. Organizations should implement immediate mitigations including network segmentation to isolate backup servers, disabling unnecessary RPC services, and applying vendor patches as soon as available. Additionally, monitoring for unusual RPC traffic patterns and implementing network intrusion detection systems can help identify exploitation attempts. The vulnerability highlights the importance of securing backup infrastructure as these systems often contain sensitive data and operate with elevated privileges, making them attractive targets for attackers seeking persistent access to enterprise networks. Organizations should also consider implementing zero-trust network principles where even internal systems are verified before granting access to backup services.