CVE-2008-3405 in nzFotolog
Summary
by MITRE
Directory traversal vulnerability in index.php in Ricardo Amaral nzFotolog 0.4.1 allows remote attackers to include and execute arbitrary local files via directory traversal sequences in the action_file parameter.
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Analysis
by VulDB Data Team • 11/02/2024
The vulnerability identified as CVE-2008-3405 represents a critical directory traversal flaw within the nzFotolog 0.4.1 web application developed by Ricardo Amaral. This vulnerability exists in the index.php script and specifically affects the handling of user-supplied input through the action_file parameter. The flaw enables remote attackers to manipulate file paths and access arbitrary local files on the server through carefully crafted directory traversal sequences such as ../ or ..\.. The vulnerability stems from insufficient input validation and sanitization of user-provided parameters before they are used in file inclusion operations.
The technical implementation of this vulnerability aligns with CWE-22, which classifies directory traversal attacks as a common weakness in software applications. Attackers can exploit this flaw by submitting malicious input containing directory traversal sequences to the action_file parameter, potentially allowing them to read sensitive files such as configuration files, database credentials, or system files that should remain inaccessible to unauthorized users. The vulnerability's impact extends beyond simple information disclosure as it can lead to arbitrary code execution when combined with other attack vectors, particularly when the application's file inclusion mechanism permits execution of included files.
From an operational standpoint, this vulnerability poses significant risks to web application security and can result in complete system compromise if exploited successfully. The attack surface is broad as it affects any system running the vulnerable nzFotolog version, and the exploit requires minimal technical skill to execute. The vulnerability's remote nature means that attackers do not need physical access to the system or network privileges to exploit it, making it particularly dangerous in publicly accessible web environments. Organizations using this software are vulnerable to data breaches, unauthorized access, and potential complete system takeover.
The mitigation strategies for this vulnerability should include immediate patching of the affected software to the latest version that addresses the directory traversal flaw. Input validation and sanitization mechanisms must be strengthened to properly filter and validate all user-supplied input before processing. Implementing proper access controls and restricting file inclusion operations to predefined safe directories can significantly reduce the attack surface. Network segmentation and monitoring solutions should be deployed to detect and prevent exploitation attempts. Additionally, organizations should implement the principle of least privilege for web application files and ensure that file inclusion operations are strictly controlled and validated. The vulnerability's classification under ATT&CK technique T1059.007 for command and scripting interpreter indicates that successful exploitation could enable attackers to execute arbitrary commands on the affected system, emphasizing the critical importance of immediate remediation.