CVE-2007-0703 in WebBuilder
Summary
by MITRE
PHP remote file inclusion vulnerability in library/StageLoader.php in WebBuilder 2.0 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the GLOBALS[core][module_path] parameter.
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Analysis
by VulDB Data Team • 08/21/2024
The vulnerability identified as CVE-2007-0703 represents a critical remote file inclusion flaw within the WebBuilder content management system version 2.0 and earlier. This vulnerability resides in the library/StageLoader.php file and demonstrates a classic insecure direct object reference pattern that enables attackers to manipulate application behavior through crafted input parameters. The flaw specifically targets the GLOBALS[core][module_path] parameter, which serves as an entry point for remote code execution when improperly validated or sanitized.
The technical implementation of this vulnerability stems from the application's failure to properly validate user-supplied input before incorporating it into dynamic file inclusion operations. When the StageLoader.php script processes the module_path parameter, it directly uses the provided value without adequate sanitization or validation checks, creating an opportunity for malicious actors to inject arbitrary URLs. This pattern aligns with CWE-434, which specifically addresses insecure file upload and inclusion vulnerabilities where applications accept untrusted data and use it to construct file paths or URLs without proper validation.
From an operational perspective, this vulnerability presents a severe risk to affected systems as it allows remote attackers to execute arbitrary PHP code on the target server. Attackers can leverage this flaw to upload and execute malicious scripts, potentially gaining full control over the compromised server, accessing sensitive data, or using the system as a pivot point for further attacks within the network. The vulnerability's impact is amplified by its remote nature, meaning that attackers do not require physical access or prior authentication to exploit the flaw, making it particularly dangerous in web-facing environments.
The exploitation of this vulnerability follows standard remote file inclusion attack patterns that are well-documented in the cybersecurity community and align with techniques described in various ATT&CK frameworks under the T1190 category for Exploit Public-Facing Application. Organizations running affected WebBuilder versions face significant risk of unauthorized code execution, data breaches, and potential system compromise. The vulnerability's persistence across multiple versions of WebBuilder indicates a fundamental design flaw in the application's input handling mechanisms that was not adequately addressed in the development lifecycle.
Effective mitigation strategies for this vulnerability include immediate patching of the WebBuilder application to the latest secure version that addresses the file inclusion flaw, implementing proper input validation and sanitization measures, and configuring web application firewalls to monitor and block suspicious parameter values. Additionally, organizations should implement principle of least privilege access controls, regularly audit application code for similar vulnerabilities, and consider implementing secure coding practices that prevent dynamic code execution based on user input. The remediation process should also include comprehensive security testing to identify and address similar vulnerabilities in other components of the application stack, ensuring that input validation mechanisms are consistently applied across all dynamic file inclusion operations.