CVE-2006-6387 in LINK Content Management Server
Summary
by MITRE
Multiple SQL injection vulnerabilities in LINK Content Management Server (CMS) allow remote attackers to execute arbitrary SQL commands via the (1) IDMeniGlavni parameter to navigacija.php, and the (2) IDStranicaPodaci parameter to prikazInformacije.php. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 10/06/2017
The vulnerability identified as CVE-2006-6387 represents a critical security flaw in the LINK Content Management Server CMS that exposes multiple pathways for remote SQL injection attacks. This vulnerability affects two distinct parameters within the application's web interface, specifically IDMeniGlavni in navigacija.php and IDStranicaPodaci in prikazInformacije.php, creating significant attack surface for malicious actors seeking unauthorized access to backend database systems. The vulnerability classification aligns with CWE-89 which specifically addresses SQL injection flaws, making this a direct instance of improper input validation that allows attackers to manipulate database queries through crafted input parameters.
The technical exploitation of this vulnerability occurs when attackers submit malicious input through the vulnerable parameters, allowing them to inject arbitrary SQL commands into the application's database layer. This injection capability enables attackers to bypass authentication mechanisms, extract sensitive data from the database, modify or delete information, and potentially escalate privileges within the system. The vulnerability exists because the application fails to properly sanitize or escape user input before incorporating it into SQL query constructions, creating an environment where attacker-controlled data can directly influence query execution. This flaw demonstrates poor application security practices and inadequate parameter validation that violates fundamental security principles for web application development.
From an operational standpoint, the impact of CVE-2006-6387 extends beyond simple data theft to encompass complete system compromise potential. Attackers could leverage this vulnerability to gain unauthorized access to sensitive information stored within the CMS database, including user credentials, content management data, and potentially system configuration details. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous for web-facing applications. This vulnerability directly maps to several ATT&CK techniques including T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS) when attackers use the compromised system to launch further attacks. The vulnerability also enables techniques such as T1005 (Data from Local System) and T1021.004 (Remote Services: SSH) when attackers establish persistence within the compromised environment.
The remediation approach for this vulnerability requires immediate implementation of proper input validation and parameterized query construction throughout the affected application components. System administrators should implement input sanitization measures that filter or escape special characters that could be used in SQL injection attacks, while also ensuring that all database queries utilize parameterized statements or stored procedures that separate user input from SQL command structure. The application should be updated to enforce proper access controls and implement proper error handling that prevents information leakage through database errors. Security patches or code modifications should address both vulnerable parameters and ensure comprehensive input validation across all user-controllable inputs within the CMS. Organizations should also implement network segmentation and monitoring solutions to detect and prevent exploitation attempts, while establishing regular security assessments to identify similar vulnerabilities that may exist within the broader application ecosystem. The vulnerability demonstrates the critical importance of adhering to secure coding practices and implementing defense-in-depth strategies to protect against SQL injection attacks that remain one of the most prevalent and dangerous web application security threats.