CVE-2006-4065 in SAPID Gallery
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in Dmitry Sheiko SAPID Gallery 1.0 and earlier allow remote attackers to execute arbitrary PHP code via a URL in the (1) root_path parameter to (a) usr/extensions/get_calendar.inc.php or the (2) GLOBALS[root_path] parameter to (b) usr/extensions/get_tree.inc.php.
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Analysis
by VulDB Data Team • 07/12/2024
The CVE-2006-4065 vulnerability represents a critical remote file inclusion flaw affecting Dmitry Sheiko SAPID Gallery version 1.0 and earlier. This vulnerability manifests through two distinct attack vectors that exploit improper input validation in the gallery's extension handling mechanisms. The flaw resides in the way the application processes user-supplied input parameters, specifically root_path and GLOBALS[root_path], which are used to construct file paths for including extension files. These parameters are directly incorporated into file inclusion operations without adequate sanitization or validation, creating a pathway for malicious actors to inject arbitrary URLs and execute unauthorized code on the target server.
The technical exploitation of this vulnerability follows a classic remote file inclusion pattern where attackers manipulate the root_path parameter to point to malicious PHP scripts hosted on remote servers. When the application processes the get_calendar.inc.php file, it accepts the root_path parameter and uses it to include files without proper validation, allowing an attacker to inject a URL pointing to a remote PHP payload. Similarly, the get_tree.inc.php file is vulnerable through the GLOBALS[root_path] parameter, which operates under the same insecure handling principles. Both attack vectors leverage the PHP include functionality to execute arbitrary code, making this a severe server-side vulnerability that bypasses normal access controls and authentication mechanisms.
The operational impact of CVE-2006-4065 extends far beyond simple code execution, as it provides attackers with complete control over the affected web server. Successful exploitation enables attackers to upload and execute malicious files, access sensitive data, modify the application's functionality, and potentially establish persistent backdoors for future access. The vulnerability affects the core gallery functionality and could lead to complete system compromise, especially when combined with other attack vectors or when the application runs with elevated privileges. Organizations using SAPID Gallery versions 1.0 or earlier face significant risk of unauthorized access, data breaches, and potential lateral movement within their network infrastructure. This vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an input command, and maps to ATT&CK technique T1190 for exploiting vulnerabilities in web applications.
Mitigation strategies for CVE-2006-4065 require immediate action to address the root cause through proper input validation and sanitization. Organizations must implement strict parameter validation that prevents external URLs from being accepted in file inclusion contexts, and should replace the vulnerable include operations with secure alternatives that use whitelisted file paths. The recommended approach includes disabling remote file inclusion capabilities in PHP configuration, implementing proper input sanitization routines, and applying the latest security patches from the vendor if available. Additionally, network-level protections such as web application firewalls and intrusion detection systems can help detect and block exploitation attempts. The vulnerability demonstrates the critical importance of secure coding practices and input validation, particularly in applications that handle user-provided data for file operations, as outlined in secure coding guidelines for preventing injection vulnerabilities.