CVE-2006-6329 in TorrentFlux
Summary
by MITRE
index.php for TorrentFlux 2.2 allows remote attackers to delete files by specifying the target filename in the delfile parameter.
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Analysis
by VulDB Data Team • 08/08/2024
The vulnerability identified as CVE-2006-6329 represents a critical directory traversal and file deletion flaw within the TorrentFlux 2.2 web application. This issue specifically affects the index.php script which processes user input through the delfile parameter, creating an avenue for remote attackers to execute unauthorized file deletion operations on the affected system. The vulnerability stems from inadequate input validation and sanitization mechanisms within the application's file handling routines, allowing malicious actors to manipulate the file deletion process by directly specifying target filenames through HTTP parameters.
This weakness fundamentally violates the principle of least privilege and proper access control implementation, as the application fails to verify whether the requesting user has legitimate authorization to delete the specified files. The vulnerability operates under CWE-22, which categorizes it as a directory traversal attack, where attackers can manipulate input to access and modify files outside of intended directories. The flaw essentially allows for arbitrary file deletion, potentially compromising the integrity of the entire torrent management system and underlying file storage infrastructure. Attackers can leverage this vulnerability to remove critical torrent files, configuration data, or even system files that could disrupt service availability and compromise system security.
The operational impact of this vulnerability extends beyond simple file deletion, as it can be exploited to cause significant disruption to torrent sharing operations and potentially enable further attack vectors. Remote exploitation means that attackers do not require physical access or local system credentials to execute malicious file deletion operations. This vulnerability aligns with ATT&CK technique T1485, which describes data destruction tactics, and represents a serious concern for systems hosting torrent management services where unauthorized file removal could compromise entire torrent libraries. The attack surface is particularly concerning for systems where TorrentFlux serves as a central file management platform, as the deletion of key torrent files could result in data loss and service disruption for legitimate users.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization measures within the application's file handling processes. The most effective approach involves validating all user-supplied input through strict parameter validation, implementing proper access controls, and ensuring that file operations are restricted to authorized users only. Additionally, the application should employ proper path validation to prevent directory traversal attacks and implement comprehensive logging of file operations to detect unauthorized access attempts. System administrators should also consider implementing network-level restrictions, such as firewall rules that limit access to the affected web application, and ensure that the TorrentFlux installation is regularly updated with security patches. The vulnerability highlights the critical importance of proper input validation and access control implementation, as outlined in OWASP Top Ten security principles, and demonstrates how seemingly simple parameter handling can create significant security risks when not properly secured against malicious input manipulation.