CVE-2006-6337 in Aspee Ziyaretci Defteri
Summary
by MITRE
Multiple SQL injection vulnerabilities in giris.asp in Aspee and Dogantepe Ziyaretci Defteri allow remote attackers to execute arbitrary SQL commands via the (1) kullanici or (2) parola parameter.
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Analysis
by VulDB Data Team • 06/28/2024
The vulnerability identified as CVE-2006-6337 represents a critical SQL injection flaw discovered in the giris.asp component of the Aspee and Dogantepe Ziyaretci Defteri web application. This vulnerability resides within the authentication mechanism of the visitor registry system, specifically targeting the user login functionality. The flaw manifests when the application fails to properly sanitize user input passed through the kullanici (username) and parola (password) parameters, creating an avenue for malicious actors to manipulate the underlying database queries.
The technical implementation of this vulnerability stems from the application's insecure handling of user credentials during the login process. When an attacker submits malicious input through either the kullanici or parola parameters, the web application directly incorporates this unvalidated data into SQL query construction without proper input sanitization or parameterization. This allows an attacker to inject malicious SQL code that can alter the intended query execution flow, potentially enabling unauthorized database access, data extraction, or even complete system compromise. The vulnerability is classified under CWE-89 SQL Injection, which is a well-established category of web application vulnerabilities that has been consistently documented in the CWE database since its inception.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands on the backend database server. Successful exploitation could result in complete database compromise, allowing attackers to view, modify, or delete sensitive visitor registry information. The attack surface is particularly concerning given that this vulnerability affects the authentication mechanism, meaning that unauthorized individuals could potentially gain administrative access to the visitor registry system. This could lead to persistent access, data manipulation, or even the complete takeover of the web application's functionality.
Mitigation strategies for this vulnerability should prioritize immediate input validation and parameterization of all database queries. The most effective approach involves implementing proper prepared statements or parameterized queries that separate SQL command structure from user data, thereby preventing malicious input from altering the intended query execution. Additionally, comprehensive input sanitization should be implemented to filter or escape special characters that could be used in SQL injection attacks. Network-level defenses such as web application firewalls and intrusion detection systems can provide additional layers of protection, though they should not be considered a substitute for proper code-level fixes. Organizations should also implement the principle of least privilege for database accounts, ensuring that the web application only has the minimum necessary permissions to perform its legitimate functions, thereby limiting the potential impact of successful exploitation. This vulnerability demonstrates the critical importance of secure coding practices and input validation in web applications, aligning with ATT&CK technique T1190 for SQL injection attacks and emphasizing the need for robust application security measures throughout the software development lifecycle.