CVE-2006-7135 in PHP Poll Creator
Summary
by MITRE
PHP remote file inclusion vulnerability in lib/functions.inc.php in PHP Poll Creator (phpPC) 1.04 allows remote attackers to execute arbitrary PHP code via a URL in the relativer_pfad parameter, a different vector and version than CVE-2005-1755. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 10/13/2017
The vulnerability described in CVE-2006-7135 represents a critical remote file inclusion flaw in PHP Poll Creator version 1.04, specifically within the lib/functions.inc.php file. This vulnerability exposes the application to arbitrary code execution attacks through manipulation of the relativer_pfad parameter, which is processed without proper input validation or sanitization. The flaw operates by allowing remote attackers to inject malicious URLs that are subsequently included and executed by the PHP interpreter, creating a direct pathway for attackers to execute arbitrary code on the target server.
This vulnerability falls under the category of CWE-88, which describes improper neutralization of special elements used in an expression, specifically in the context of remote file inclusion attacks. The attack vector is distinct from CVE-2005-1755, indicating that while both vulnerabilities involve file inclusion mechanisms, they affect different code paths or versions within the software ecosystem. The technical implementation involves the application accepting user-supplied input through the relativer_pfad parameter and directly incorporating it into file inclusion operations without adequate security controls or validation measures.
The operational impact of this vulnerability is severe, as it provides attackers with complete control over the affected system. Successful exploitation allows adversaries to execute malicious PHP code with the privileges of the web server process, potentially leading to data theft, system compromise, or further lateral movement within the network. The vulnerability's remote nature means that attackers can exploit it from anywhere on the internet without requiring local access or authentication, making it particularly dangerous for publicly accessible web applications. This type of vulnerability is classified under the ATT&CK framework as T1059.007 for Command and Scripting Interpreter, specifically PHP, and T1190 for Exploit Public-Facing Application.
Mitigation strategies for this vulnerability should include immediate patching of the PHP Poll Creator application to version 1.05 or later, which contains the necessary fixes for the remote file inclusion flaw. Administrators should also implement input validation and sanitization measures, ensuring that all user-supplied parameters are properly validated before being used in file inclusion operations. Additional protective measures include disabling remote file inclusion features in PHP configuration, implementing proper access controls, and monitoring for suspicious file inclusion patterns. Network-level protections such as web application firewalls and intrusion detection systems can help detect and prevent exploitation attempts. The vulnerability highlights the critical importance of secure coding practices and input validation, particularly when dealing with dynamic file operations in web applications. Organizations should also conduct regular security assessments to identify similar vulnerabilities in their software inventory and implement comprehensive security monitoring to detect exploitation attempts.