CVE-2025-6407: Hospital Management System SQLi Vulnerability

CVE-2025-6407 Overview

A critical SQL injection vulnerability has been identified in Campcodes Online Hospital Management System version 1.0. The vulnerability exists in the /user-login.php file where improper handling of the Username parameter allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive patient data, medical records, and system credentials.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive healthcare data, and potentially gain unauthorized administrative access to the hospital management system.

Affected Products

• Campcodes Online Hospital Management System 1.0

Discovery Timeline

• 2025-06-21 - CVE-2025-6407 published to NVD
• 2025-06-24 - Last updated in NVD database

Technical Details for CVE-2025-6407

Vulnerability Analysis

This SQL injection vulnerability stems from insufficient input validation in the user authentication mechanism. The /user-login.php endpoint accepts user-supplied input through the Username parameter and incorporates it directly into SQL queries without proper sanitization or parameterized query implementation. This allows attackers to manipulate the SQL query structure, potentially bypassing authentication checks or extracting data from the underlying database.

Healthcare management systems are particularly sensitive targets for this type of vulnerability due to the protected health information (PHI) they contain. Successful exploitation could lead to HIPAA violations, exposure of patient medical records, and compromise of the entire hospital management infrastructure.

Root Cause

The root cause is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly known as injection vulnerabilities. The application fails to properly sanitize or escape user input before incorporating it into SQL statements. The Username parameter is directly concatenated into database queries rather than using prepared statements with parameterized queries, allowing special SQL characters and commands to be interpreted as part of the query structure rather than data.

Attack Vector

The attack can be initiated remotely over the network without requiring any prior authentication or user interaction. An attacker can craft malicious input containing SQL metacharacters and commands, submitting them through the login form's Username field. The exploit has been publicly disclosed, increasing the risk of widespread exploitation.

The attack methodology typically involves:

1. Identifying the vulnerable login endpoint at /user-login.php
2. Crafting SQL injection payloads targeting the Username parameter
3. Submitting malicious requests to bypass authentication or extract database contents
4. Leveraging gained access to escalate privileges or exfiltrate sensitive data

For detailed technical information about this vulnerability, refer to the GitHub Issue CVE-12 and VulDB entry #313401.

Detection Methods for CVE-2025-6407

Indicators of Compromise

• Unusual or malformed entries in web server access logs for /user-login.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements
• Failed login attempts with usernames containing SQL keywords (SELECT, UNION, OR, AND, DROP)
• Abnormal database query patterns or errors in application logs
• Unexpected database exports or data access from unauthenticated sessions

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the Username parameter
• Implement intrusion detection signatures for HTTP requests to /user-login.php containing SQL injection payloads
• Monitor database logs for unusual query execution patterns, particularly authentication-related queries with unexpected syntax
• Enable detailed application logging to capture all authentication attempts and query parameters

Monitoring Recommendations

• Configure real-time alerting for access attempts to /user-login.php with suspicious payloads
• Establish baseline authentication patterns and alert on anomalies in login behavior
• Monitor outbound network traffic from the database server for potential data exfiltration
• Implement database activity monitoring to detect unauthorized data access or modification

How to Mitigate CVE-2025-6407

Immediate Actions Required

• Restrict network access to the affected Online Hospital Management System to trusted IP addresses only
• Implement a Web Application Firewall with SQL injection protection rules in front of the application
• Review web server and database logs for evidence of exploitation attempts
• Consider taking the system offline if it contains sensitive patient data until patches are available

Patch Information

No official vendor patch has been released at the time of this publication. Organizations should monitor the Campcodes website for security updates. In the absence of an official patch, implement the workarounds and compensating controls listed below.

Workarounds

• Deploy a WAF rule to sanitize or block requests containing SQL metacharacters in the Username field
• Implement network segmentation to isolate the hospital management system from public access
• If source code access is available, modify /user-login.php to use prepared statements with parameterized queries
• Enable database account privilege restrictions to limit the impact of successful SQL injection attacks
• Consider implementing additional authentication factors to reduce the impact of authentication bypass

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:Username "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in Username parameter',\
    logdata:'%{MATCHED_VAR}',\
    severity:CRITICAL"