CVE-2022-36735 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 /admin/delete.php.
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Analysis
by VulDB Data Team • 10/10/2022
The vulnerability identified as CVE-2022-36735 represents a critical SQL injection flaw within the Library Management System version 1.0, specifically targeting the administrative deletion functionality. This issue manifests through the bookId parameter in the /admin/delete.php endpoint, creating a significant security risk that could allow unauthorized users to manipulate the underlying database structure. The flaw stems from inadequate input validation and sanitization practices within the application's backend processing logic, where user-supplied parameters are directly incorporated into SQL query construction without proper escaping or parameterization mechanisms. Such vulnerabilities fall under CWE-89 which categorizes SQL injection as a serious weakness that can lead to complete database compromise and unauthorized data access.
The operational impact of this vulnerability extends beyond simple data manipulation, as it provides potential attackers with the capability to execute arbitrary SQL commands against the database server. An attacker could leverage this weakness to extract sensitive information including user credentials, patron records, book inventory details, and potentially gain elevated privileges within the system. The attack vector is particularly concerning because it targets the administrative interface, which typically possesses higher privileges and access rights compared to standard user functions. This vulnerability aligns with ATT&CK technique T1071.004 which describes application layer protocol manipulation, specifically targeting database communication channels through injection attacks that can bypass traditional security controls.
The technical exploitation of this SQL injection vulnerability requires minimal prerequisites and can be accomplished through standard web application penetration testing methodologies. Attackers would need to craft malicious payloads that manipulate the bookId parameter to inject SQL commands, potentially leveraging techniques such as union-based queries or error-based extraction methods to gather database schema information and extract data. The vulnerability demonstrates poor input validation practices that violate fundamental security principles, as the application fails to implement proper parameterized queries or input sanitization measures that would prevent malicious code injection. Security controls such as web application firewalls or database activity monitoring systems may not effectively detect this attack pattern if they do not specifically target SQL injection signatures within administrative endpoints. Organizations should implement comprehensive mitigation strategies including immediate patching of the affected application, implementation of proper input validation controls, and deployment of database access controls that limit the privileges of database accounts used by the application to prevent unauthorized data manipulation.
The broader implications of this vulnerability highlight the critical importance of secure coding practices in web application development, particularly within administrative interfaces where elevated privileges and sensitive data access exist. This flaw represents a common security oversight that underscores the need for regular security assessments, code reviews, and adherence to secure development lifecycle practices. Organizations utilizing similar library management systems or other database-driven applications should conduct thorough vulnerability assessments to identify and remediate comparable injection vulnerabilities throughout their application portfolios. The remediation process should involve implementing proper parameterized queries, enforcing strict input validation, and establishing comprehensive database access controls that align with security best practices and industry standards for protecting sensitive information assets.