CVE-2007-6727 in KerviNet Forum
Summary
by MITRE
SQL injection vulnerability in topic.php in KerviNet Forum 1.1 allows remote attackers to execute arbitrary SQL commands via the forum parameter.
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Analysis
by VulDB Data Team • 12/11/2017
The vulnerability identified as CVE-2007-6727 represents a critical SQL injection flaw within the KerviNet Forum 1.1 software ecosystem. This security weakness resides in the topic.php script where user input validation mechanisms fail to properly sanitize the forum parameter, creating an exploitable pathway for malicious actors to manipulate database queries. The vulnerability specifically affects the forum component of the KerviNet platform, which is designed for community discussions and content management, making it a prime target for attackers seeking unauthorized access to underlying database systems. The flaw exists due to insufficient input filtering and improper query construction practices that allow attackers to inject malicious SQL code directly into the application's database layer.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing SQL commands within the forum parameter value. When the topic.php script processes this input without proper sanitization, the injected SQL code gets executed within the database context, potentially allowing attackers to retrieve, modify, or delete sensitive data from the forum's database. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection weaknesses in software applications. The attack vector is remote and requires no privileged access, making it particularly dangerous as it can be exploited from anywhere on the internet. The vulnerability demonstrates poor input validation practices and inadequate parameterized query implementation, which are fundamental security controls that should prevent such attacks.
The operational impact of this vulnerability extends beyond simple data theft, as it can lead to complete system compromise and unauthorized access to sensitive user information. Attackers could potentially extract user credentials, personal data, forum content, and administrative access details stored within the database. The implications are severe for any organization relying on KerviNet Forum 1.1, as the compromise of a single forum instance could expose multiple users and potentially provide attackers with a foothold for further network penetration. This vulnerability also enables attackers to modify forum content, create false posts, or even escalate privileges within the system. The attack can be executed through simple web browser interactions, making it accessible to threat actors with minimal technical expertise. According to the MITRE ATT&CK framework, this vulnerability maps to technique T1071.004 for application layer protocol usage and T1190 for exploit public-facing application, demonstrating the multi-faceted nature of the threat.
Mitigation strategies for CVE-2007-6727 require immediate implementation of proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should apply the vendor-supplied patches or upgrade to newer versions of KerviNet Forum that address this vulnerability. The implementation of web application firewalls and input sanitization measures can provide additional protection layers. Security professionals should conduct thorough penetration testing to identify similar vulnerabilities in other components of the application stack, as this type of weakness often indicates broader security gaps. Regular security assessments and code reviews should be implemented to prevent similar issues in future development cycles. The vulnerability serves as a reminder of the critical importance of secure coding practices and the need for comprehensive security testing throughout the software development lifecycle. Additionally, implementing proper access controls and database privilege management can limit the potential damage from successful exploitation attempts.