CVE-2005-0344 in 602 Lan Suite
Summary
by MITRE
Directory traversal vulnerability in 602LAN SUITE 2004.0.04.1221 allows remote authenticated users to upload and execute arbitrary files via a .. (dot dot) in the filename parameter.
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Analysis
by VulDB Data Team • 06/23/2018
The vulnerability described in CVE-2005-0344 represents a critical directory traversal flaw within the 602LAN SUITE 2004.0.04.1221 software system. This issue affects the file upload functionality and stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied filename parameters. The vulnerability specifically manifests when the application processes filenames containing .. (dot dot) sequences, which are commonly used in directory traversal attacks to navigate outside of intended directories. The flaw exists at the application layer where user inputs are not sufficiently filtered or validated before being processed, creating an exploitable path traversal condition.
The technical implementation of this vulnerability allows authenticated remote attackers to manipulate the filename parameter in file upload requests to include directory traversal sequences. When the application processes these malformed filenames, it fails to properly validate or sanitize the input, enabling attackers to specify arbitrary file paths during upload operations. This weakness directly enables attackers to write files to locations outside of the intended upload directory, potentially allowing them to place malicious code in critical system directories or overwrite existing legitimate files. The vulnerability is classified under CWE-22 as "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')" and aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with the capability to execute arbitrary code on the affected system. Successful exploitation could result in complete system compromise, allowing attackers to gain persistent access, escalate privileges, or deploy additional malicious payloads. The vulnerability affects the confidentiality, integrity, and availability of the system, as attackers can modify or delete critical files, inject malicious code, or establish backdoors. Organizations using 602LAN SUITE 2004.0.04.1221 are particularly at risk since the vulnerability requires only authenticated access, meaning that any user with valid credentials could potentially exploit this weakness. The attack vector is particularly concerning because it leverages legitimate authentication mechanisms, making detection more difficult and potentially allowing attackers to remain undetected while establishing persistent access.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization mechanisms. Organizations should immediately apply vendor patches or updates when available, as this vulnerability was likely addressed through proper validation of filename parameters. System administrators should implement strict filename validation that rejects or strips directory traversal sequences from user inputs, particularly checking for .. (dot dot) sequences in filename parameters. The principle of least privilege should be enforced by restricting file upload directories to minimal necessary permissions and ensuring that uploaded files are stored in isolated locations without execution privileges. Network segmentation and monitoring should be implemented to detect unusual file upload patterns or attempts to access restricted directories, while regular security audits should verify that proper input validation mechanisms are in place. Additionally, implementing web application firewalls and security scanning tools can help detect and prevent exploitation attempts targeting this specific vulnerability pattern.