CVE-2024-25567 in DIAEnergie
Summary
by MITRE • 03/22/2024
Path traversal attack is possible and write outside of the intended directory and may access sensitive information. If a file name is specified that already exists on the file system, then the original file will be overwritten.
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Analysis
by VulDB Data Team • 11/06/2025
This vulnerability represents a critical path traversal flaw that allows attackers to escape designated directory boundaries and manipulate filesystem operations beyond intended constraints. The vulnerability manifests when applications fail to properly validate or sanitize user-supplied filenames that contain directory traversal sequences such as ../ or ..\, enabling unauthorized access to sensitive system resources. The flaw operates at the core of file system access controls, where proper input validation mechanisms are insufficient or absent. When a malicious actor supplies a filename containing traversal sequences, the application processes these inputs without adequate sanitization, potentially allowing write operations to occur outside of designated directories. This vulnerability directly aligns with CWE-22, which specifically addresses path traversal and directory traversal issues in software systems.
The technical exploitation of this vulnerability occurs when an application accepts user input for file operations without implementing proper path validation or canonicalization. Attackers can construct malicious filenames that, when processed by the vulnerable application, result in unintended file system operations. The overwrite functionality presents a particularly dangerous aspect, as it enables not only unauthorized access to sensitive information but also the potential for data corruption or complete file replacement with malicious content. This capability allows attackers to modify critical system files, configuration data, or user information, depending on the application's access permissions and the target directory structure. The vulnerability essentially bypasses access control mechanisms that should restrict file system operations to specific directories, creating a scenario where attackers can navigate the filesystem hierarchy unrestricted.
The operational impact of this vulnerability extends far beyond simple information disclosure, as it provides attackers with the capability to execute persistent modifications to target systems. When combined with write permissions, the vulnerability enables attackers to overwrite existing files with malicious content, potentially leading to system compromise through the replacement of critical executables, configuration files, or system libraries. The ability to access sensitive information through path traversal creates additional attack vectors for further exploitation, including the potential to read system configuration files, user credentials, or other confidential data. Organizations running vulnerable applications face significant risks including data loss, system integrity compromise, and potential lateral movement within network environments. The vulnerability's impact is particularly severe in environments where applications process user-supplied filenames for file upload, download, or processing operations, as these scenarios provide multiple attack surfaces for exploitation.
Effective mitigation strategies must focus on implementing robust input validation and sanitization mechanisms that prevent directory traversal sequences from being processed. Organizations should implement proper path canonicalization techniques that resolve all relative paths to their absolute equivalents before processing, ensuring that filenames cannot escape designated directories. The principle of least privilege should be enforced by restricting application file system access to only necessary directories and implementing proper access controls for file operations. Additionally, applications should employ secure coding practices including the use of allowlists for valid filenames, proper error handling to prevent information disclosure, and regular security testing including dynamic analysis and penetration testing to identify potential path traversal vulnerabilities. Implementation of these controls aligns with ATT&CK technique T1059 which addresses command and scripting interpreters, and T1566 which addresses credential access through various attack vectors including file system manipulation. Regular security updates and patch management procedures should be implemented to address this vulnerability promptly, as the exploitation of such flaws can lead to complete system compromise when not properly addressed.