CVE-2009-2328 in KerviNet Forum
Summary
by MITRE
admin/edit_user.php in KerviNet Forum 1.1 and earlier does not require administrative authentication, which allows remote attackers to delete arbitrary accounts and conduct SQL injection attacks via the del_user_id parameter.
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Analysis
by VulDB Data Team • 12/02/2024
The vulnerability identified as CVE-2009-2328 represents a critical security flaw in KerviNet Forum version 1.1 and earlier systems where administrative authentication requirements are completely bypassed in the admin/edit_user.php script. This weakness stems from insufficient access control mechanisms that fail to verify user privileges before executing administrative functions, creating a pathway for unauthorized remote exploitation. The vulnerability specifically affects the del_user_id parameter which processes user deletion requests without proper authentication checks, enabling malicious actors to manipulate account deletion operations.
This flaw constitutes a severe authorization bypass issue that directly violates fundamental security principles of access control and privilege management. The absence of administrative authentication validation creates an unauthenticated administrative interface that can be exploited by remote attackers to perform unauthorized actions including account deletion and potential data manipulation. The vulnerability's impact extends beyond simple account removal as it provides a foundation for more sophisticated attacks through SQL injection vectors that can be leveraged once the initial unauthorized access is established.
The operational consequences of this vulnerability are particularly damaging for forum administrators and system operators who rely on the platform for community management and user data integrity. Attackers can exploit this weakness to remove legitimate user accounts, potentially disrupting community operations and user engagement. The SQL injection capabilities that accompany this vulnerability further amplify the threat landscape by allowing attackers to extract sensitive information, modify database contents, or potentially gain deeper system access through database manipulation. This vulnerability directly maps to CWE-285, which addresses improper authorization issues, and aligns with ATT&CK technique T1078 for valid accounts and T1213 for data from information repositories.
The security implications of CVE-2009-2328 extend to the broader context of web application security where authentication mechanisms must be robust and comprehensive. The vulnerability demonstrates how a single missing authentication check can compromise entire administrative functions within a web application. Organizations running affected KerviNet Forum versions face significant risks including data loss, user account compromise, and potential system compromise through the exploitation of the underlying SQL injection vulnerability. The remote nature of this attack vector means that adversaries can exploit the flaw from anywhere on the internet without requiring physical access to the system or local network presence.
Mitigation strategies should prioritize immediate implementation of proper authentication controls for all administrative functions within the forum software. System administrators must ensure that all administrative scripts require valid authentication tokens and privilege verification before executing sensitive operations. The implementation of input validation and parameterized queries should address the SQL injection component of this vulnerability. Additionally, regular security audits and penetration testing should be conducted to identify similar authentication bypass vulnerabilities in other components of the web application stack. Organizations should also consider implementing network segmentation and monitoring solutions to detect unauthorized access attempts to administrative interfaces. The vulnerability highlights the importance of adhering to secure coding practices and the principle of least privilege in web application development, ensuring that administrative functions remain protected from unauthorized access through comprehensive authentication mechanisms.