CVE-2006-6219 in dev4u
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in index.php in dev4u CMS allow remote attackers to inject arbitrary web script or HTML via the (1) user_name, (2) passwort, and (3) go_target parameters.
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Analysis
by VulDB Data Team • 09/30/2017
The vulnerability identified as CVE-2006-6219 represents a critical cross-site scripting flaw within the dev4u content management system, specifically affecting the index.php script. This vulnerability exposes the system to remote code execution risks through malicious injection attacks targeting three distinct input parameters. The affected parameters include user_name, passwort, and go_target, which collectively create multiple attack vectors for unauthorized actors seeking to compromise the CMS environment. Such vulnerabilities fall under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to inject malicious client-side scripts into web pages viewed by other users. The presence of XSS vulnerabilities in authentication and navigation parameters significantly amplifies the risk profile since these components are frequently accessed and manipulated during normal user interactions.
The technical exploitation of this vulnerability occurs when remote attackers submit malicious payloads through the identified parameters in the index.php script. When the CMS processes these inputs without proper sanitization or output encoding, the injected scripts become executable within the victim's browser context. The user_name parameter typically handles authentication input, making it a prime target for credential theft attempts, while the passwort parameter directly relates to password handling mechanisms. The go_target parameter, which appears to control navigation behavior, can be manipulated to redirect users to malicious sites or execute arbitrary JavaScript commands. This multi-vector approach increases the attack surface and makes the vulnerability particularly dangerous as it can be exploited through various user interaction scenarios. The underlying flaw stems from insufficient input validation and output encoding practices, which are fundamental security controls that should prevent malicious data from being processed or displayed without proper sanitization.
The operational impact of CVE-2006-6219 extends beyond simple script injection, potentially enabling attackers to perform session hijacking, steal sensitive user information, redirect traffic to malicious domains, or even execute full compromise attacks against the CMS infrastructure. Given that the vulnerability affects core authentication and navigation components, successful exploitation could allow attackers to gain unauthorized access to user accounts, manipulate content, or establish persistent backdoors within the system. The vulnerability's presence in a content management system creates additional risks since CMS platforms often contain sensitive administrative interfaces and user data repositories. Attackers could leverage this vulnerability to harvest session cookies, capture login credentials, or perform more sophisticated attacks such as credential stuffing or privilege escalation. The attack vectors are particularly concerning because they target parameters that are commonly used during normal user operations, making detection more difficult and exploitation more likely to succeed in real-world scenarios.
Mitigation strategies for CVE-2006-6219 should focus on implementing comprehensive input validation and output encoding measures across all user-facing parameters. The primary remediation involves sanitizing all input data from the three identified parameters before processing or displaying them within the application interface. This includes implementing proper HTML escaping, using parameterized queries where applicable, and ensuring that all user-supplied data undergoes rigorous validation before being accepted into the system. Organizations should also implement Content Security Policy headers to limit script execution capabilities and prevent unauthorized code injection. The vulnerability demonstrates the importance of following secure coding practices and adhering to established security frameworks such as the OWASP Top Ten, which consistently ranks XSS vulnerabilities among the most critical web application threats. Additionally, regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other components of the CMS. System administrators should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious activity related to these attack vectors. The vulnerability serves as a reminder of the critical need for continuous security monitoring and the implementation of defense-in-depth strategies to protect web applications from persistent threats.