CVE-2022-4737 in Blood Bank Management System
Summary
by MITRE • 12/26/2022
A vulnerability was found in SourceCodester Blood Bank Management System 1.0. It has been rated as critical. This issue affects some unknown processing of the file login.php. The manipulation of the argument username/password leads to sql injection. The attack may be initiated remotely. The identifier VDB-216773 was assigned to this vulnerability.
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Analysis
by VulDB Data Team • 01/24/2023
The CVE-2022-4737 vulnerability represents a critical sql injection flaw in the SourceCodester Blood Bank Management System version 1.0, demonstrating a fundamental weakness in input validation and database interaction handling. This vulnerability exists within the login.php file which serves as the primary authentication interface for the blood bank management system, making it a high-value target for malicious actors seeking unauthorized access to sensitive medical data. The flaw stems from inadequate sanitization of user inputs, specifically username and password parameters, which are directly incorporated into sql queries without proper escaping or parameterization mechanisms.
The technical exploitation of this vulnerability follows a classic sql injection attack pattern where attacker-controlled input can manipulate the sql execution flow. When users submit login credentials through the login.php interface, the application fails to properly validate or escape the username and password parameters before incorporating them into database queries. This creates an environment where malicious input can alter the intended sql command structure, potentially allowing attackers to extract, modify, or delete database records. The vulnerability's remote exploitability means that attackers can leverage this flaw from external networks without requiring physical access to the system, significantly expanding the attack surface and potential impact.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it compromises the integrity and confidentiality of the entire blood bank management system. Medical records containing sensitive patient information, blood type distributions, donor details, and inventory management data become vulnerable to disclosure or manipulation. This risk is particularly severe given the nature of blood bank operations, where data integrity is paramount for patient safety and regulatory compliance. The vulnerability also potentially enables attackers to escalate privileges within the system, gain administrative access, or even execute arbitrary code on the underlying database server. According to CWE standards, this vulnerability maps to CWE-89 sql injection, which is classified as a critical weakness in application security.
Mitigation strategies for CVE-2022-4737 must address both immediate remediation and long-term architectural improvements. The primary fix involves implementing proper input validation and parameterized queries throughout the application's database interaction layers, specifically within the login.php file and related authentication components. Organizations should deploy web application firewalls to monitor and filter suspicious sql injection attempts, while also implementing proper output encoding to prevent reflected sql injection attacks. The system should adopt prepared statements or stored procedures for all database interactions, ensuring that user inputs are treated as data rather than executable code. Additionally, regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components. From an ATT&CK framework perspective, this vulnerability falls under the T1190 compromise of external remote services category, emphasizing the need for robust network security controls and continuous monitoring of authentication attempts. The remediation process should also include implementing proper access controls, database activity monitoring, and regular security updates to prevent similar issues from arising in future versions of the software.