CVE-2007-5325 in BrightStor ARCserve Backup
Summary
by MITRE
Multiple buffer overflows in (1) the Message Engine and (2) AScore.dll in CA BrightStor ARCServe BackUp v9.01 through R11.5, and Enterprise Backup r10.5, allow remote attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 07/27/2019
The vulnerability identified as CVE-2007-5325 represents a critical security flaw affecting CA BrightStor ARCServe Backup software across multiple versions from v9.01 through R11.5 and Enterprise Backup r10.5. This issue manifests as multiple buffer overflows within two distinct components of the backup solution: the Message Engine and the AScore.dll library. The vulnerability architecture demonstrates a classic software flaw pattern where insufficient input validation and improper memory management create exploitable conditions that could be leveraged by remote attackers to gain unauthorized system access.
The technical implementation of this vulnerability stems from buffer overflow conditions that occur when processing specially crafted input data within the Message Engine and AScore.dll modules. These buffer overflows represent a fundamental flaw in memory handling where data exceeding the allocated buffer space can overwrite adjacent memory locations. The CWE-121 classification applies directly to this vulnerability as it involves stack-based buffer overflow conditions that can be exploited to overwrite return addresses and execute arbitrary code. The attack vectors remain unspecified in the original description, but typically such vulnerabilities in backup software can be triggered through network-based interactions with the backup service or through malformed backup job configurations.
The operational impact of this vulnerability extends beyond simple code execution capabilities to encompass potential system compromise and data integrity breaches. Remote attackers who successfully exploit these buffer overflows could gain complete control over affected systems running CA BrightStor ARCServe Backup, potentially leading to unauthorized data access, system infiltration, and lateral movement within network environments. The implications are particularly severe for backup infrastructure since these systems often contain sensitive organizational data and operate with elevated privileges. According to ATT&CK framework, this vulnerability maps to multiple techniques including T1059 for command and scripting interpreter and T1068 for exploit for privilege escalation, making it a significant threat to enterprise security postures.
Organizations utilizing affected versions of CA BrightStor ARCServe Backup should prioritize immediate remediation through official vendor patches and updates. The vulnerability landscape for backup systems is particularly concerning as these tools often serve as primary targets for attackers seeking persistent access to enterprise networks. Security teams must implement network segmentation controls and monitoring to detect potential exploitation attempts while ensuring that all backup infrastructure components are maintained with current security patches. The remediation process should include comprehensive vulnerability assessments of the backup environment and verification that all instances of the affected software have been properly updated to prevent exploitation attempts that could lead to complete system compromise and data breaches.