CVE-2009-2397 in Audio Article Directory
Summary
by MITRE
Directory traversal vulnerability in download.php in Audio Article Directory allows remote attackers to read arbitrary files via directory traversal sequences in the file parameter.
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Analysis
by VulDB Data Team • 12/02/2024
The vulnerability identified as CVE-2009-2397 represents a critical directory traversal flaw within the Audio Article Directory web application's download.php script. This weakness enables malicious actors to access arbitrary files on the server by manipulating the file parameter through directory traversal sequences such as ../ or ..\.. This type of vulnerability falls under the common weakness enumeration CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw exists due to insufficient input validation and sanitization of user-supplied data that is directly incorporated into file system operations without proper authorization checks.
The technical implementation of this vulnerability occurs when the download.php script accepts user input through the file parameter and processes it without adequate filtering or validation. Attackers can exploit this by crafting malicious requests that include directory traversal sequences, allowing them to navigate outside the intended directory structure and access sensitive files such as configuration files, database credentials, system files, or other confidential data stored on the server. The vulnerability is particularly dangerous because it can be exploited remotely without requiring authentication, making it a prime target for automated scanning tools and malicious actors seeking to compromise web applications.
The operational impact of CVE-2009-2397 extends beyond simple file disclosure, as successful exploitation can lead to complete system compromise and data breaches. Attackers may gain access to database connection strings, application configuration files, user credentials, and potentially execute arbitrary code if the application is running with elevated privileges. This vulnerability aligns with several tactics described in the attack framework, including privilege escalation and credential access phases where adversaries seek to expand their control over compromised systems. The vulnerability also represents a significant risk to data confidentiality and integrity, as it allows unauthorized access to potentially sensitive information that could be used for further attacks or financial gain.
Mitigation strategies for this vulnerability include implementing proper input validation and sanitization techniques, such as using allowlists of permitted file paths, implementing proper access controls, and employing secure coding practices that prevent user-supplied input from being directly processed in file system operations. Organizations should deploy web application firewalls to detect and block directory traversal attempts, conduct regular security code reviews, and ensure that all web applications are updated with the latest security patches. The vulnerability also highlights the importance of following secure coding guidelines and implementing defense-in-depth strategies that include network segmentation, regular vulnerability assessments, and comprehensive security monitoring to detect and respond to exploitation attempts. Additionally, implementing proper file access controls and ensuring that applications run with minimal required privileges can significantly reduce the potential impact of successful directory traversal attacks.