CVE-2022-30404 in College Management System
Summary
by MITRE • 05/13/2022
College Management System v1.0 is vulnerable to SQL Injection via /College_Management_System/admin/display-teacher.php?teacher_id=.
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Analysis
by VulDB Data Team • 05/16/2022
The College Management System version 1.0 presents a critical security vulnerability through SQL injection flaws in its administrative interface. This vulnerability specifically affects the display-teacher.php endpoint where the teacher_id parameter is processed without adequate input validation or sanitization. The flaw allows malicious actors to inject arbitrary SQL commands through the teacher_id GET parameter, potentially enabling unauthorized access to the underlying database system. Such vulnerabilities represent a significant risk to institutional data integrity and confidentiality, particularly in educational environments where sensitive student and staff information is stored.
The technical implementation of this vulnerability stems from improper handling of user-supplied input within the application's database query construction process. When the application receives the teacher_id parameter, it directly incorporates this value into SQL queries without employing prepared statements or proper parameterized queries. This design flaw aligns with CWE-89 which specifically addresses SQL injection vulnerabilities where untrusted data is concatenated or interpolated into SQL commands. The vulnerability exists at the application layer where input validation should occur before any database interaction takes place, making it particularly dangerous as it can be exploited by attackers with minimal technical expertise.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete system compromise and potential data manipulation. An attacker could extract sensitive information including student records, teacher details, administrative credentials, and institutional data through various SQL injection techniques. The vulnerability also enables privilege escalation attacks where malicious actors might gain administrative access to the system. Additionally, the attacker could perform destructive operations such as data deletion, modification, or unauthorized account creation. This represents a serious threat to institutional continuity and regulatory compliance, particularly in environments governed by education data protection regulations and privacy frameworks.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and parameterized query execution throughout the application codebase. The primary defense mechanism involves replacing direct string concatenation with prepared statements or parameterized queries that separate SQL command structure from data values. All user inputs must undergo strict sanitization and validation before processing, implementing both server-side and client-side checks. Network-level protections such as web application firewalls should be deployed to detect and block suspicious SQL injection patterns. Regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities throughout the application. The implementation of least privilege principles and regular security updates will further reduce the attack surface and potential impact of such vulnerabilities. This vulnerability demonstrates the critical importance of following secure coding practices and adhering to established security frameworks such as those outlined in the OWASP Top Ten and NIST cybersecurity guidelines.