CVE-2022-36732 in Library Management System
Summary
by MITRE • 08/31/2022
Library Management System v1.0 was discovered to contain a SQL injection vulnerability via the id parameter at /librarian/dele.php.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 10/10/2022
The vulnerability identified as CVE-2022-36732 represents a critical SQL injection flaw within the Library Management System version 1.0, specifically affecting the librarian module's deletion functionality. This security weakness resides in the handling of user input through the id parameter within the dele.php script, which processes library management operations for librarians. The vulnerability stems from insufficient input validation and improper parameter sanitization, allowing malicious actors to inject arbitrary SQL commands into the database query execution flow. The affected system lacks proper input filtering mechanisms that would normally prevent malicious SQL syntax from being executed within the database context, creating an exploitable entry point for unauthorized data manipulation.
The technical exploitation of this vulnerability occurs when an attacker submits a specially crafted id parameter value that contains SQL injection payload to the /librarian/dele.php endpoint. This flaw directly maps to CWE-89 which defines SQL injection as the insertion of malicious SQL code into input fields, enabling attackers to bypass authentication, extract sensitive data, modify database records, or even execute administrative commands on the underlying database system. The vulnerability demonstrates a classic lack of input validation and output encoding practices that are fundamental to preventing injection attacks. When the application processes the malicious id parameter without proper sanitization, the SQL query construction becomes vulnerable to manipulation, potentially allowing attackers to perform unauthorized database operations.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with significant control over the library management system's database operations. An attacker could potentially delete critical library records, modify user accounts, access confidential patron information, or even escalate privileges within the system. The vulnerability affects the integrity and confidentiality of the entire library management infrastructure, as the database serves as the central repository for all library operations including book inventory, user records, borrowing history, and administrative data. This presents a substantial risk to privacy and operational continuity, particularly in environments where sensitive patron information is stored alongside library catalog data. The exploitation could result in complete database compromise, data loss, or unauthorized access to the system's administrative functions.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security hardening measures. The primary fix involves implementing proper input validation and parameterized queries to prevent SQL injection attacks, which aligns with defensive techniques outlined in the ATT&CK framework under the T1190 technique for exploitation of vulnerabilities. Organizations should immediately patch the application by sanitizing all user inputs, implementing prepared statements or parameterized queries, and removing direct SQL query construction from user-supplied data. Additional security measures include implementing proper access controls, regular security audits, input validation at multiple layers, and monitoring for suspicious database access patterns. The system should also employ web application firewalls and intrusion detection systems to identify and block potential exploitation attempts. Regular security training for developers on secure coding practices and adherence to OWASP Top Ten security guidelines will help prevent similar vulnerabilities in future development cycles.