CVE-2007-1392 in netForo
Summary
by MITRE
Directory traversal vulnerability in down.php in netForo! 0.1g allows remote attackers to read arbitrary files via a .. (dot dot) in the file_to_download parameter.
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Analysis
by VulDB Data Team • 08/26/2024
The vulnerability identified as CVE-2007-1392 represents a classic directory traversal flaw within the netForo! 0.1g web application, specifically affecting the down.php component. This type of vulnerability falls under the broader category of insecure direct object references and is categorized as CWE-22 according to the Common Weakness Enumeration standards. The flaw manifests when the application fails to properly validate or sanitize user input provided through the file_to_download parameter, allowing malicious actors to manipulate file paths and access unauthorized resources.
The technical implementation of this vulnerability exploits the lack of proper input validation mechanisms within the down.php script. When an attacker supplies a .. (dot dot) sequence within the file_to_download parameter, the application processes this input without adequate sanitization, enabling path traversal attacks. This allows adversaries to navigate beyond the intended directory boundaries and access files that should remain restricted, potentially including system configuration files, database credentials, or other sensitive data. The vulnerability demonstrates a fundamental failure in input validation and access control mechanisms, creating an attack surface that directly violates the principle of least privilege.
The operational impact of this directory traversal vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to access critical system resources that may contain sensitive information or enable further exploitation. Remote attackers can leverage this vulnerability to read arbitrary files from the web server's file system, potentially gaining access to authentication credentials, application source code, or system configuration files. The remote nature of this attack vector means that exploitation can occur without physical access to the target system, making it particularly dangerous for web applications that handle sensitive data. This vulnerability directly aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing with Malicious Attachment) when combined with other attack vectors.
Mitigation strategies for CVE-2007-1392 should focus on implementing robust input validation and sanitization mechanisms within the application. The most effective approach involves implementing a whitelist-based validation system that only allows specific, predefined file paths or extensions to be processed by the down.php script. Additionally, developers should employ proper path normalization techniques that strip out or encode potentially dangerous sequences such as .. and / or \ characters. The implementation of proper access controls and directory restrictions ensures that even if input validation is bypassed, unauthorized file access remains impossible. Organizations should also consider implementing web application firewalls and security monitoring systems to detect and prevent exploitation attempts. Regular security audits and code reviews focusing on input validation practices help identify and remediate similar vulnerabilities before they can be exploited by malicious actors.