CVE-2007-6491 in Webdoc Cms
Summary
by MITRE
Multiple SQL injection vulnerabilities in Kvaliitti WebDoc 3.0 CMS allow remote attackers to execute arbitrary SQL commands via (1) the cat_id parameter to categories.asp; and probably (2) the document_id parameter to categories.asp, and the (3) cat_id and (4) document_id parameters to subcategory.asp.
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Analysis
by VulDB Data Team • 11/08/2017
The vulnerability identified as CVE-2007-6491 represents a critical SQL injection flaw within the Kvaliitti WebDoc 3.0 content management system that exposes multiple attack vectors for remote threat actors. This vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection vulnerabilities where untrusted data is incorporated into SQL commands without proper sanitization or validation. The affected WebDoc 3.0 CMS suffers from inadequate input validation mechanisms that fail to properly filter or escape user-supplied data before incorporating it into database queries, creating an exploitable condition that allows attackers to manipulate the underlying database operations.
The technical exploitation of this vulnerability occurs through specific parameters within the web application's request handling mechanisms. Attackers can manipulate the cat_id parameter in the categories.asp script to inject malicious SQL commands that bypass authentication and authorization controls. The vulnerability also extends to the document_id parameter within the same script, indicating a systemic flaw in how the application processes user input across multiple parameter names. Additionally, the subcategory.asp script contains two separate vulnerable parameters - cat_id and document_id - which together create multiple pathways for attackers to execute arbitrary SQL commands against the backend database system. These attack vectors demonstrate a fundamental lack of proper parameter sanitization and input validation throughout the application's codebase.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with direct database access capabilities that can lead to complete system compromise. Remote attackers can leverage these SQL injection flaws to extract sensitive information from the database, including user credentials, personal data, and system configuration details. The vulnerability enables privilege escalation attacks where attackers can bypass authentication mechanisms and gain administrative access to the CMS, potentially leading to full system control. Furthermore, attackers can modify or delete database records, inject malicious content, and potentially establish persistent backdoors within the compromised system. The widespread nature of the vulnerability across multiple scripts within the same application increases the attack surface and reduces the effectiveness of partial mitigations.
Mitigation strategies for this vulnerability require immediate implementation of comprehensive input validation and parameter sanitization measures. Organizations should implement proper parameterized queries or prepared statements to ensure that user input cannot alter the structure of SQL commands. Input validation should occur at multiple levels including client-side, server-side, and database-level controls to provide defense-in-depth protection. The implementation of web application firewalls and intrusion detection systems can help identify and block malicious SQL injection attempts. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications and systems. Additionally, the affected WebDoc 3.0 CMS should be updated to the latest available version or replaced with a more secure alternative. According to the ATT&CK framework, this vulnerability maps to the T1190 technique for exploitation of remote services, with potential progression to T1078 for valid accounts and T1005 for data from local system. System administrators should also implement network segmentation and access control measures to limit the potential impact of successful exploitation attempts.