CVE-2008-1410 in Snap Deploy
Summary
by MITRE
Directory traversal vulnerability in the PXE Server (pxesrv.exe) in Acronis Snap Deploy 2.0.0.1076 and earlier allows remote attackers to read arbitrary files via directory traversal sequences to the TFTP service.
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Analysis
by VulDB Data Team • 10/19/2024
The vulnerability identified as CVE-2008-1410 represents a critical directory traversal flaw within the PXE Server component of Acronis Snap Deploy 2.0.0.1076 and earlier versions. This security weakness resides in the pxesrv.exe executable which serves as the core TFTP service handler for the deployment solution. The flaw enables malicious actors to exploit improperly validated file paths through network-based attacks, potentially gaining unauthorized access to sensitive system files and data.
This directory traversal vulnerability operates at the application layer and specifically targets the TFTP service implementation within the PXE server functionality. The technical flaw occurs when the pxesrv.exe process fails to properly sanitize user-supplied input containing directory traversal sequences such as ../ or ..\ characters. When these sequences are passed to the TFTP service, the system incorrectly processes them, allowing attackers to navigate beyond the intended directory boundaries and access files that should remain restricted. The vulnerability directly maps to CWE-22, which classifies directory traversal attacks as a fundamental weakness in input validation and path handling mechanisms.
The operational impact of this vulnerability extends beyond simple file access, as it provides attackers with potential pathways to extract sensitive information from the targeted system. Remote attackers can leverage this flaw to read configuration files, system logs, and potentially even credential stores that may be accessible through the TFTP service. The attack vector requires no authentication, making it particularly dangerous as it can be exploited from any network location. This represents a significant risk to enterprise environments where Acronis Snap Deploy is utilized for system imaging and deployment operations, as it could enable attackers to gather intelligence about system configurations and potentially escalate privileges through access to system files.
Security professionals should consider this vulnerability in relation to the ATT&CK framework's T1083 (File and Directory Discovery) and T1566 (Phishing for Information) techniques, as it enables unauthorized file enumeration and data extraction. The TFTP service typically operates on UDP port 69, making it an attractive target for reconnaissance activities. Organizations utilizing this software must implement immediate mitigations including patching to versions 2.0.0.1077 or later, network segmentation to limit TFTP service exposure, and monitoring for suspicious directory traversal attempts. The vulnerability also highlights the importance of input validation controls and proper path handling within network services, particularly those handling file operations in enterprise deployment environments where automated system management is critical.