EUVD-2025-5095

Comprehensive Technical Analysis of EUVD-2025-5095

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the EUVD entry EUVD-2025-5095 pertains to a SQL Injection flaw in the historico_paciente.php endpoint of the WeGIA application. SQL Injection vulnerabilities are critical because they allow attackers to execute arbitrary SQL queries, potentially leading to unauthorized access, data manipulation, and data exfiltration.

Severity Evaluation:

• Base Score: 10.0 (Critical)
• Base Score Version: 4.0
• Base Score Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

The CVSS score of 10.0 indicates the highest level of severity. The vector string highlights that the vulnerability can be exploited remotely (AV:N), requires low complexity (AC:L), does not need user interaction (UI:N), and has high impacts on confidentiality, integrity, and availability (VC:H, VI:H, VA:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: An attacker can exploit this vulnerability over the network without needing physical access to the system.
• Web Application Interface: The vulnerability is present in the web application's endpoint, making it accessible via standard HTTP/HTTPS requests.

Exploitation Methods:

• SQL Injection: An attacker can craft malicious SQL queries and inject them into the historico_paciente.php endpoint. This can be done through manipulating input parameters to execute unintended SQL commands.
• Automated Tools: Attackers may use automated tools to scan for and exploit SQL Injection vulnerabilities, making the attack more efficient and widespread.

3. Affected Systems and Software Versions

Affected Systems:

• WeGIA Application: All versions prior to 3.2.14 are affected.
• Deployment Environments: Any institution or organization using WeGIA for web management, particularly those focusing on Portuguese language users.

Software Versions:

• Vulnerable Versions: All versions of WeGIA before 3.2.14.
• Patched Version: Version 3.2.14 addresses the vulnerability.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: All users should upgrade to WeGIA version 3.2.14 or later immediately.
• Patch Management: Implement a robust patch management process to ensure timely updates and patches are applied.

Long-Term Strategies:

• Input Validation: Ensure all user inputs are properly validated and sanitized to prevent SQL Injection attacks.
• Parameterized Queries: Use parameterized queries or prepared statements to interact with the database securely.
• Web Application Firewalls (WAF): Deploy WAFs to monitor and block malicious SQL Injection attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential security issues.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, an open-source web manager widely used by Portuguese-speaking institutions, highlights the importance of securing open-source software. Given the critical nature of the vulnerability, it underscores the need for:

• Enhanced Collaboration: Between open-source communities and cybersecurity experts to identify and mitigate vulnerabilities.
• Regulatory Compliance: Ensuring that institutions comply with cybersecurity regulations and best practices.
• Public Awareness: Increasing awareness among users and developers about the risks associated with SQL Injection and the importance of timely updates.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: historico_paciente.php
• Vulnerability Type: SQL Injection
• Exploitation: Injection of malicious SQL queries through input parameters.

Mitigation Steps:

1. Upgrade to Version 3.2.14: Ensure all instances of WeGIA are updated to the latest patched version.
2. Implement Input Validation: Use server-side input validation to sanitize all user inputs.
3. Use Parameterized Queries: Replace dynamic SQL queries with parameterized queries to prevent injection attacks.
4. Deploy WAF: Configure a Web Application Firewall to detect and block SQL Injection attempts.
5. Regular Security Audits: Schedule regular security audits and penetration testing to identify and fix vulnerabilities.

References:

• GitHub Advisory: GHSA-f654-c5r5-jx77
• ENISA ID Product: [{"id":"6d290bc3-e23d-34a6-bb6f-ccd980f09749","product":{"name":"WeGIA"},"product_version":"< 3.2.14"}]
• ENISA ID Vendor: [{"id":"9e4bbc90-fe03-38ad-ba0c-7b7f86376342","vendor":{"name":"LabRedesCefetRJ"}}]

By following these recommendations, organizations can significantly reduce the risk of exploitation and ensure the security of their web applications.