CVE-2022-36721 in Library Management System
Summary
by MITRE • 08/26/2022
Library Management System v1.0 was discovered to contain a SQL injection vulnerability via the Textbook parameter at /admin/modify.php.
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Analysis
by VulDB Data Team • 10/01/2022
The vulnerability identified as CVE-2022-36721 affects the Library Management System version 1.0, specifically targeting the administrative interface through a SQL injection flaw in the Textbook parameter of the modify.php page. This represents a critical security weakness that allows unauthorized users to manipulate database queries through malicious input, potentially leading to complete database compromise and unauthorized access to sensitive library information. The vulnerability exists within the administrative functionality of the system, making it particularly concerning as it provides attackers with privileged access to modify library records and potentially extract confidential data.
The technical flaw manifests as a classic SQL injection vulnerability where the Textbook parameter in the /admin/modify.php endpoint fails to properly sanitize or validate user input before incorporating it into database queries. This lack of input validation creates an opening for attackers to inject malicious SQL code that can manipulate the underlying database structure. The vulnerability is categorized under CWE-89 which specifically addresses SQL injection flaws, and it aligns with ATT&CK technique T1071.004 for application layer protocol manipulation. When exploited, the vulnerability allows attackers to execute arbitrary SQL commands, potentially enabling data extraction, modification, or deletion of library records including patron information, book inventories, and administrative data.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to escalate privileges within the administrative interface. An attacker could potentially gain access to sensitive patron records, manipulate book availability status, modify administrative credentials, or even execute database commands that could compromise the entire system. The presence of this vulnerability in the administrative section of the library management system means that successful exploitation could result in complete system compromise, allowing attackers to alter library operations, hide malicious activities, or establish persistent access points. This vulnerability particularly affects organizations relying on legacy systems where proper input validation and sanitization may not have been implemented.
Mitigation strategies for CVE-2022-36721 should prioritize immediate implementation of parameterized queries or prepared statements to prevent SQL injection attacks. The system administrators must ensure that all user inputs, particularly those used in database queries, are properly sanitized and validated before processing. Input validation should be implemented at multiple levels including client-side and server-side controls, with strict filtering of special characters that could be used in SQL injection attempts. Additionally, the system should implement proper access controls and authentication mechanisms to limit administrative access to authorized personnel only. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other parts of the application. The most effective long-term solution involves upgrading to a supported version of the library management system that addresses this vulnerability through proper input validation and secure coding practices. Organizations should also implement database activity monitoring to detect unusual query patterns that might indicate exploitation attempts.