EUVD-2025-24454

Comprehensive Technical Analysis of EUVD-2025-24454

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in WeGIA, an open-source web manager, is a SQL Injection vulnerability in the /html/saude/aplicar_medicamento.php endpoint, specifically affecting the id_fichamedica parameter. This vulnerability allows attackers to execute arbitrary SQL commands, which can compromise the confidentiality, integrity, and availability of the database.

Severity Evaluation:

• Base Score: 9.4 (CVSS:4.0)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

The high base score indicates a critical vulnerability. The attack vector (AV:N) is network-based, requiring low complexity (AC:L) and no user interaction (UI:N). The attacker needs low privileges (PR:L) to exploit this vulnerability, and the impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: The attacker can exploit the vulnerability remotely over the network.
• Low Complexity: The attack requires minimal effort and can be executed with standard SQL injection techniques.

Exploitation Methods:

• SQL Injection: The attacker can inject malicious SQL code into the id_fichamedica parameter to manipulate the database.
• Data Exfiltration: The attacker can extract sensitive information from the database.
• Data Manipulation: The attacker can alter or delete data, compromising the integrity of the database.
• Denial of Service: The attacker can execute commands that disrupt the availability of the database.

3. Affected Systems and Software Versions

Affected Software:

• WeGIA: Versions prior to 3.4.8

Affected Systems:

• Any system running WeGIA versions prior to 3.4.8, particularly those used by Portuguese-language charitable institutions.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade to Version 3.4.8: Ensure all instances of WeGIA are updated to version 3.4.8 or later, where the vulnerability has been patched.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially for the id_fichamedica parameter.
• Prepared Statements: Use prepared statements and parameterized queries to prevent SQL injection attacks.
• Web Application Firewall (WAF): Deploy a WAF to detect and block SQL injection attempts.

Long-Term Mitigation:

• Regular Security Audits: Conduct regular security audits and code reviews to identify and fix vulnerabilities.
• Security Training: Provide security training for developers to understand and mitigate common vulnerabilities like SQL injection.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, which is focused on Portuguese-language charitable institutions, highlights the importance of securing open-source software used in critical sectors. The potential for data breaches, data manipulation, and service disruptions can have significant impacts on the operations and reputation of these institutions.

Regulatory Compliance:

• GDPR Compliance: Organizations must ensure they comply with GDPR regulations, especially regarding data protection and breach reporting.
• Incident Response: Establish an incident response plan to quickly address and mitigate any security incidents.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: /html/saude/aplicar_medicamento.php
• Parameter: id_fichamedica
• Vulnerability Type: SQL Injection

Exploitation Example:

id_fichamedica=1'; DROP TABLE users; --

This example demonstrates how an attacker could inject SQL code to drop a table, highlighting the potential for severe data loss.

Patch Information:

• Fixed Version: 3.4.8
• Patch Commit: GitHub Commit

References:

• GitHub Security Advisory
• GitHub Issue

Conclusion: This vulnerability underscores the need for vigilant security practices in open-source software, particularly in sectors dealing with sensitive data. Immediate patching and long-term security measures are essential to protect against SQL injection attacks and ensure the integrity and availability of critical systems.