CVE-2008-3580 in K-Links
Summary
by MITRE
Multiple SQL injection vulnerabilities in Qsoft K-Links allow remote attackers to execute arbitrary SQL commands via (1) the id parameter to visit.php, or the PATH_INFO to the default URI under (2) report/, (3) addreview/, or (4) refer/.
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Analysis
by VulDB Data Team • 11/03/2024
The vulnerability identified as CVE-2008-3580 represents a critical SQL injection flaw within the Qsoft K-Links web application that exposes multiple attack vectors allowing remote adversaries to execute arbitrary SQL commands. This vulnerability resides in the application's handling of user-supplied input parameters, specifically targeting the id parameter in visit.php and PATH_INFO parameters within report/, addreview/, and refer/ directories. The flaw enables attackers to manipulate database queries through crafted input, potentially leading to unauthorized data access, modification, or deletion.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the web application's parameter processing logic. When the application receives user input through the specified parameters, it directly incorporates these values into SQL query construction without proper escaping or parameterization techniques. This design flaw falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection vulnerabilities where untrusted data is concatenated into SQL commands without adequate sanitization measures. The vulnerability demonstrates poor input handling practices that violate fundamental secure coding principles.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with potential full database access capabilities. An attacker exploiting this vulnerability could extract sensitive information including user credentials, personal data, and business-critical information stored within the application's database. The remote execution capability means that attackers do not require physical access to the system, making the vulnerability particularly dangerous for web-hosted applications. Additionally, the vulnerability could enable attackers to modify or delete database records, potentially causing data integrity issues and system disruption. This type of vulnerability aligns with ATT&CK technique T1190, which describes the exploitation of remote services for initial access and privilege escalation.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and parameterized query construction throughout the application codebase. The primary defense involves ensuring all user-supplied input is properly sanitized and validated before being incorporated into database queries. Applications should utilize prepared statements or parameterized queries to separate SQL command structure from data values, effectively preventing malicious SQL code injection. Input validation should be implemented at multiple layers including application-level filters and database-level constraints. Additionally, implementing proper access controls and monitoring mechanisms can help detect and prevent exploitation attempts. Regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other application components. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to the principle of least privilege in database access controls.