CVE-2022-36730 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 bookId parameter at /librarian/delete.php.
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Analysis
by VulDB Data Team • 10/10/2022
The vulnerability identified as CVE-2022-36730 represents a critical security flaw in the Library Management System version 1.0, specifically targeting the librarian module's delete functionality. This SQL injection vulnerability exists within the book deletion process where the system fails to properly validate or sanitize user input before incorporating it into database queries. The affected parameter bookId at the endpoint /librarian/delete.php creates an attack surface that allows malicious actors to inject arbitrary SQL commands into the backend database operations.
This vulnerability falls under the CWE-89 category of SQL Injection, which is classified as a high-risk security flaw in the Common Weakness Enumeration framework. The attack vector specifically targets the lack of input validation and proper parameterization in the database query execution flow. When an attacker submits a malicious bookId parameter containing SQL payload, the system processes this input directly without adequate sanitization, enabling unauthorized database access and manipulation. The vulnerability demonstrates poor application security practices where user-supplied data is not properly escaped or parameterized before database interaction.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete database compromise and potential system takeover. An attacker could exploit this flaw to extract sensitive information including user credentials, patron records, book inventory details, and system configuration data. The vulnerability also permits unauthorized modification or deletion of library records, potentially disrupting library operations and compromising data integrity. Additionally, this weakness could serve as a foothold for further attacks within the network infrastructure, particularly if the database server has elevated privileges or if the application shares database connections with other systems.
Mitigation strategies for CVE-2022-36730 should prioritize immediate implementation of proper input validation and parameterized queries to prevent SQL injection attacks. The system should employ prepared statements or parameterized queries for all database interactions, ensuring that user input is treated as data rather than executable code. Input sanitization measures including character filtering, length validation, and type checking should be implemented at the application level. Network-level protections such as web application firewalls and intrusion detection systems can provide additional monitoring and blocking capabilities. Regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities throughout the application codebase. The remediation process should also include proper error handling to prevent information leakage and implement proper access controls to limit database privileges for the application. This vulnerability aligns with ATT&CK technique T1190 for exploitation of remote services and T1071.004 for application layer protocol usage, emphasizing the need for comprehensive security controls across multiple attack vectors.