EUVD-2025-24453

Comprehensive Technical Analysis of EUVD-2025-24453

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in WeGIA, an open-source web manager, is a SQL Injection (SQLi) flaw in the /html/funcionario/dependente_remover.php endpoint, specifically affecting the id_dependente 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 due to the following factors:

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

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Direct SQL Injection: An attacker can inject malicious SQL code into the id_dependente parameter to manipulate the database.
• Automated Scanning: Attackers may use automated tools to scan for vulnerable endpoints and exploit them.
• Phishing and Social Engineering: Attackers could trick users into performing actions that exploit the vulnerability.

Exploitation Methods:

• Data Exfiltration: Attackers can extract sensitive information from the database.
• Data Manipulation: Attackers can alter or delete data, affecting the integrity of the database.
• Denial of Service (DoS): Attackers can execute commands that disrupt the availability of the database.

3. Affected Systems and Software Versions

Affected Systems:

• WeGIA versions prior to 3.4.8

Software Versions:

• All versions of WeGIA before 3.4.8 are vulnerable.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Upgrade to WeGIA version 3.4.8 or later, which includes the patch for this vulnerability.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially for parameters like id_dependente.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewall (WAF): Deploy a WAF to detect and block SQL injection attempts.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
• Security Training: Provide training for developers on secure coding practices and common vulnerabilities.
• Patch Management: Establish a robust patch management process to ensure timely updates and patches.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, which is focused on the Portuguese language and charitable institutions, highlights the importance of securing open-source software used by non-profit organizations. The potential exploitation of this vulnerability could lead to data breaches, financial loss, and reputational damage for charitable institutions, which are often reliant on public trust and donations.

Regulatory Compliance:

• GDPR: Organizations must ensure compliance with GDPR to protect personal data and avoid hefty fines.
• NIS Directive: Critical infrastructure and essential services must adhere to the NIS Directive to maintain cybersecurity resilience.

6. Technical Details for Security Professionals

Vulnerability Details:

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

Exploitation Example:

id_dependente=1'; DROP TABLE users; --

This example demonstrates how an attacker could inject a SQL command to drop a table, causing significant data loss.

Mitigation Code Example:

// Using prepared statements in PHP
$stmt = $pdo->prepare("DELETE FROM dependente WHERE id_dependente = :id_dependente");
$stmt->bindParam(':id_dependente', $id_dependente, PDO::PARAM_INT);
$stmt->execute();

References:

• GitHub Security Advisory
• GitHub Commit

Conclusion: The SQL Injection vulnerability in WeGIA underscores the need for vigilant security practices in open-source projects, especially those serving critical sectors like charitable institutions. Immediate patching and long-term security strategies are essential to mitigate risks and protect sensitive data.