CVE-2007-5489 in Artmedic CMS
Summary
by MITRE
Directory traversal vulnerability in index.php in Artmedic CMS 3.4 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the page parameter.
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Analysis
by VulDB Data Team • 10/07/2024
The vulnerability described in CVE-2007-5489 represents a critical directory traversal flaw within the Artmedic Content Management System version 3.4 and earlier. This issue resides in the index.php file where the application fails to properly validate user input before processing file inclusion requests. The vulnerability specifically manifests when the page parameter contains directory traversal sequences using the .. (dot dot) notation, allowing attackers to manipulate the file inclusion mechanism and access arbitrary local files on the server. Such flaws typically arise from inadequate input sanitization and improper validation of file paths, creating opportunities for attackers to bypass normal access controls and potentially execute malicious code.
The technical exploitation of this vulnerability follows a well-established pattern that aligns with CWE-22, which categorizes directory traversal attacks as a fundamental security weakness. Attackers can leverage this vulnerability by constructing malicious URLs that include the .. sequence in the page parameter, effectively navigating up the directory structure to access sensitive files such as configuration files, database credentials, or system files. The impact extends beyond simple information disclosure to potential remote code execution depending on the server configuration and the files accessed. This vulnerability operates at the application layer and can be classified under the ATT&CK technique T1566.001 for initial access through malicious file execution, making it particularly dangerous for web applications that process user input without proper validation.
The operational impact of CVE-2007-5489 is significant for organizations running affected versions of Artmedic CMS, as it provides attackers with a straightforward path to compromise server integrity and access sensitive data. The vulnerability's remote nature means that attackers do not require physical access to the system or prior authentication, making it highly exploitable from any network location. Successful exploitation could lead to complete system compromise, data theft, or serving as a foothold for further attacks within the network. Organizations using affected versions face potential regulatory compliance violations, reputational damage, and financial losses due to unauthorized access to their systems. The vulnerability demonstrates how seemingly simple input validation flaws can create substantial security risks, particularly in web applications that handle file operations and user-provided parameters.
Mitigation strategies for this vulnerability primarily focus on input validation and proper parameter sanitization. Organizations should immediately upgrade to a patched version of Artmedic CMS where the vulnerability has been addressed through proper input validation mechanisms. Implementing proper parameter validation that rejects or sanitizes directory traversal sequences such as .. or %2e%2e in the page parameter prevents exploitation attempts. Additional protective measures include restricting file inclusion capabilities, implementing proper access controls, and using web application firewalls to detect and block malicious requests containing directory traversal sequences. Security monitoring should include detection of unusual file access patterns and attempts to access system files. The vulnerability serves as a reminder of the importance of following secure coding practices, particularly regarding input validation and file handling, as outlined in OWASP Top Ten and other security frameworks that emphasize preventing path traversal attacks through proper application design and implementation practices.