Executive Summary

This vulnerability is a SQL injection issue found in the SourceCodester Hospitals Patient Records Management System 1.0, specifically in the file /classes/Users.php with the function parameter f=save. It occurs due to improper input validation of the 'id' parameter, which allows an attacker to manipulate the SQL queries executed by the system.

Because of this flaw, an attacker can inject malicious SQL code remotely without needing authentication, potentially gaining unauthorized access to the database.

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Impact Analysis

Exploitation of this vulnerability can lead to several serious impacts including unauthorized access to sensitive patient data, data leakage, data tampering, and potentially full control over the affected system.

Additionally, attackers could disrupt system availability, causing denial of service or other interruptions to hospital operations.

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Detection Guidance

This SQL injection vulnerability in /classes/Users.php?f=save can be detected by testing the 'id' parameter for injection flaws.

One common method is to use automated tools such as sqlmap to test for SQL injection by targeting the vulnerable URL parameter.

• Example sqlmap command: sqlmap -u "http://targetsite/classes/Users.php?f=save&id=1" --batch
• Manually, you can try injecting SQL syntax into the 'id' parameter, such as appending a single quote (') or SQL keywords, and observe if errors or unexpected behavior occur.

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Mitigation Strategies

Immediate mitigation steps include:

• Implement prepared statements (parameterized queries) to prevent SQL injection.
• Validate and sanitize all user inputs, especially the 'id' parameter.
• Minimize database user permissions to limit the impact of a potential exploit.
• Conduct regular security audits and code reviews to identify and fix vulnerabilities.

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Compliance Impact

This SQL injection vulnerability allows unauthorized access, data leakage, and tampering with patient records in the Hospital's Patient Records Management System. Such unauthorized access and data breaches can lead to non-compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and health information against unauthorized disclosure and alteration.

Failure to protect patient data adequately may result in violations of confidentiality, integrity, and availability requirements mandated by these standards, potentially leading to legal penalties and loss of trust.

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