CVE-2006-1561 in VBook
Summary
by MITRE
SQL injection vulnerability in index.php in vscripts (aka Kuba Kunkiewicz) [V]Book (aka VBook) 2.0 allows remote attackers to execute arbitrary SQL commands via the x parameter.
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Analysis
by VulDB Data Team • 08/26/2017
The vulnerability identified as CVE-2006-1561 represents a critical SQL injection flaw within the VBook 2.0 content management system developed by Kuba Kunkiewicz. This vulnerability specifically targets the index.php script within the vscripts component, creating an exploitable condition that allows remote attackers to manipulate database queries through the x parameter. The flaw resides in the application's improper handling of user input, where unvalidated parameters are directly incorporated into SQL command construction without adequate sanitization or parameterization measures. This vulnerability falls under the CWE-89 category of SQL Injection, which is classified as a severe weakness in software applications that can lead to complete database compromise and unauthorized data access.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the x parameter in the index.php script. The application fails to implement proper input validation or sanitization mechanisms, allowing the attacker to inject malicious SQL code that gets executed by the database server. This injection can occur through various techniques including union-based attacks, time-based blind injection, or error-based exploitation methods that leverage the lack of proper parameterization in the SQL query construction process. The vulnerability enables attackers to execute arbitrary SQL commands, potentially gaining access to sensitive database information, modifying or deleting data, and in severe cases, obtaining complete administrative control over the database system.
The operational impact of this vulnerability extends beyond simple data theft, as it can result in complete system compromise and unauthorized access to confidential information. Attackers can exploit this vulnerability to extract user credentials, personal information, and other sensitive data stored within the database. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system, making it particularly dangerous for web applications that are publicly accessible. This vulnerability also enables attackers to potentially escalate privileges within the database, modify application logic, and create backdoors for persistent access. The implications are severe as database servers often contain critical organizational data that could be used for identity theft, financial fraud, or corporate espionage, making this a high-priority security concern for any organization utilizing the affected software.
Mitigation strategies for CVE-2006-1561 should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should immediately upgrade to patched versions of VBook 2.0 or migrate to supported alternatives that address this vulnerability. The implementation of prepared statements or parameterized queries should be enforced throughout the application codebase to ensure that user input is properly escaped and treated as data rather than executable code. Additionally, the application should implement proper input sanitization techniques including whitelisting of acceptable characters, length restrictions, and comprehensive validation of all user-supplied parameters. Network-level protections such as web application firewalls and database access controls should be deployed to monitor and restrict potentially malicious database queries. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications and systems. This vulnerability aligns with ATT&CK technique T1190 which focuses on exploiting vulnerabilities in applications, and represents a classic example of how inadequate input validation can lead to severe database compromise. Organizations should also consider implementing database activity monitoring solutions to detect and respond to suspicious SQL query patterns that may indicate exploitation attempts.