CVE-2008-0609 in VHD Web Pack
Summary
by MITRE
Directory traversal vulnerability in index.php in DivideConcept VHD Web Pack 2.0 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 • 10/16/2024
The vulnerability identified as CVE-2008-0609 represents a critical directory traversal flaw within the DivideConcept VHD Web Pack 2.0 web application. This issue manifests in the index.php script where improper input validation allows remote attackers to manipulate file inclusion parameters. The vulnerability specifically occurs when the page parameter contains directory traversal sequences using the .. (dot dot) notation, enabling attackers to navigate outside the intended directory structure and access arbitrary local files on the server. Such a flaw fundamentally undermines the application's security boundaries and represents a classic example of insecure file handling practices.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input within the web application's file inclusion mechanism. When the application processes the page parameter without proper validation or filtering, it becomes susceptible to path manipulation attacks. Attackers can exploit this by crafting malicious URLs that contain sequences like ../../etc/passwd or similar traversal patterns to access sensitive system files. This type of vulnerability directly maps to CWE-22, which categorizes directory traversal or path traversal flaws as a fundamental security weakness in software applications. The flaw allows for arbitrary file inclusion, which can lead to complete system compromise when combined with other attack vectors.
The operational impact of CVE-2008-0609 extends far beyond simple information disclosure. Remote attackers can leverage this vulnerability to execute arbitrary code on the target system, potentially leading to full system compromise and unauthorized access to sensitive data. The vulnerability enables attackers to read system configuration files, access database credentials, retrieve user information, and ultimately gain control over the entire web server. This represents a severe risk to organizations as it allows for persistent access and data exfiltration without requiring authentication. The attack surface is particularly concerning because the vulnerability affects a web-based application that may be publicly accessible, making it a prime target for automated exploitation tools and malicious actors.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The primary fix involves implementing strict input validation and sanitization for all user-supplied parameters that influence file inclusion operations. Applications should employ whitelisting mechanisms that restrict file access to predetermined, safe directories and file types. Additionally, the use of secure coding practices including proper parameter validation, input filtering, and least privilege access controls should be implemented. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts. From an ATT&CK framework perspective, this vulnerability relates to techniques such as T1059.007 (Command and Scripting Interpreter: PowerShell) and T1566 (Phishing) as attackers may use this vulnerability to establish persistent access and escalate privileges. Regular security assessments and code reviews should be conducted to prevent similar issues in future development cycles, ensuring that file handling operations follow secure coding standards and that all input is properly validated before processing.