EUVD-2025-34093

Comprehensive Technical Analysis of EUVD-2025-34093

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the EUVD entry EUVD-2025-34093 pertains to a SQL Injection flaw in the WeGIA Web Manager for Institutions, specifically affecting versions prior to 3.5.1. The vulnerability is located in the /html/funcionario/dependente_documento.php endpoint, particularly in the id_dependente parameter.

Severity Evaluation:

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

The high base score indicates a critical vulnerability. The key metrics contributing to this score include:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): High (H)
• User Interaction (UI): None (N)
• Confidentiality (VC), Integrity (VI), and Availability (VA) Impact: High (H)
• Scope Change (SC): High (H)

This vulnerability poses a significant risk due to its potential to compromise the confidentiality, integrity, and availability of the database.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: An attacker can exploit this vulnerability over the network without requiring physical access to the system.
• Low Complexity: The attack does not require sophisticated techniques or tools, making it easier to exploit.

Exploitation Methods:

• SQL Injection: An attacker can inject malicious SQL code into the id_dependente parameter, allowing them to execute arbitrary SQL commands. This can lead to unauthorized access to the database, data manipulation, and potential data exfiltration.
• Automated Tools: Attackers may use automated tools to scan for and exploit SQL Injection vulnerabilities, increasing the likelihood of a successful attack.

3. Affected Systems and Software Versions

Affected Software:

• WeGIA Web Manager for Institutions
• Versions: All versions prior to 3.5.1

Affected Systems:

• Any institution or organization using WeGIA Web Manager for Institutions versions prior to 3.5.1.
• Systems with network access to the vulnerable endpoint /html/funcionario/dependente_documento.php.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade: Immediately upgrade to WeGIA version 3.5.1 or later, which includes the fix for this vulnerability.
• Patch Management: Ensure that all software dependencies and libraries are up to date.

Long-Term Mitigation:

• Input Validation: Implement robust input validation and sanitization for all user inputs, especially for parameters used in SQL queries.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL Injection attacks.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block malicious traffic targeting the vulnerable endpoint.
• Regular Security Audits: Conduct regular security audits and penetration testing to identify and mitigate similar vulnerabilities.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, an open-source web manager focused on Portuguese language users, highlights the importance of securing open-source software widely used in educational and institutional settings. The potential compromise of confidentiality, integrity, and availability of institutional data can have severe implications, including:

• Data Breaches: Unauthorized access to sensitive institutional data.
• Operational Disruption: Potential disruption of institutional services and operations.
• Reputation Damage: Loss of trust and credibility among users and stakeholders.

This incident underscores the need for continuous monitoring and timely patching of open-source software, as well as the importance of collaboration between developers, security researchers, and institutions to enhance cybersecurity resilience.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: /html/funcionario/dependente_documento.php
• Parameter: id_dependente
• Vulnerability Type: SQL Injection

Exploitation Example: An attacker could craft a malicious HTTP request to the vulnerable endpoint, injecting SQL code into the id_dependente parameter:

GET /html/funcionario/dependente_documento.php?id_dependente=1'; DROP TABLE users; --

Mitigation Code Example: To mitigate the vulnerability, use parameterized queries in the PHP code:

$stmt = $pdo->prepare("SELECT * FROM dependente_documento WHERE id_dependente = :id_dependente");
$stmt->bindParam(':id_dependente', $id_dependente, PDO::PARAM_INT);
$stmt->execute();

References:

• GitHub Security Advisory 1
• GitHub Security Advisory 2
• GitHub Issue
• GitHub Commit

By addressing this vulnerability promptly and implementing robust security measures, institutions can significantly reduce the risk of data breaches and operational disruptions.