CVE-2008-5579 in mini-pub
Summary
by MITRE
Absolute path traversal vulnerability in mini-pub.php/front-end/cat.php in mini-pub 0.3 allows remote attackers to read arbitrary files via a full pathname in the sFileName parameter.
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Analysis
by VulDB Data Team • 11/07/2024
The CVE-2008-5579 vulnerability represents a critical absolute path traversal flaw in the mini-pub 0.3 content management system, specifically within the front-end category display script. This vulnerability exists in the mini-pub.php/front-end/cat.php component where user-supplied input is not properly sanitized before being used to construct file paths. The flaw allows remote attackers to access arbitrary files on the server by manipulating the sFileName parameter with absolute pathnames, potentially exposing sensitive system information, configuration files, and other critical data that should remain protected from unauthorized access.
The technical implementation of this vulnerability stems from improper input validation and sanitization practices within the application's file handling mechanism. When the application processes the sFileName parameter, it directly incorporates user-provided data into file system operations without adequate security checks or path normalization. This creates an opportunity for attackers to craft malicious requests that traverse the file system hierarchy and access files outside the intended directory structure. The vulnerability is classified as a path traversal attack under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly referred to as directory traversal or path traversal attacks.
The operational impact of this vulnerability is severe and multifaceted, as it enables attackers to potentially access not only application files but also system configuration data, database connection details, user credentials, and other sensitive information stored on the server. An attacker could exploit this vulnerability to read php.ini files, database configuration files, or even system-level files such as /etc/passwd on unix-like systems. The remote nature of the attack means that exploitation does not require local system access or physical presence, making it particularly dangerous for web applications exposed to the internet. This vulnerability aligns with ATT&CK technique T1566.001, which describes the use of malicious file content to gain access to systems through web application vulnerabilities.
The remediation strategy for CVE-2008-5579 requires implementing robust input validation and sanitization measures throughout the application's file handling processes. The most effective mitigation involves implementing proper parameter validation that rejects or normalizes absolute path references and ensures that all file operations occur within predefined safe directories. Developers should implement whitelisting approaches for file access, where only explicitly allowed files or file patterns are permitted, rather than relying on blacklisting or simple input filtering. Additionally, the application should employ proper path normalization techniques to resolve relative paths and prevent directory traversal attempts. Organizations should also consider implementing web application firewalls and security monitoring to detect and prevent exploitation attempts. The vulnerability demonstrates the critical importance of following secure coding practices as outlined in OWASP Top Ten and other security standards, particularly those addressing input validation and access control mechanisms.