EUVD-2025-5103

Comprehensive Technical Analysis of EUVD-2025-5103

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-5103 pertains to a SQL Injection flaw in the deletar_documento.php endpoint of the WeGIA application. This vulnerability allows an authorized attacker to execute arbitrary SQL queries, potentially leading to unauthorized access to sensitive information. The severity of this vulnerability is rated with a Base Score of 9.4 under CVSS 4.0, indicating a critical risk.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low complexity to exploit.
• AT:N (No Authentication): No authentication is required to exploit the vulnerability.
• PR:L (Low Privileges): The attacker requires low privileges to exploit the vulnerability.
• UI:N (No User Interaction): No user interaction is required for the attack to succeed.
• VC:H (High Confidentiality Impact): The vulnerability has a high impact on confidentiality.
• VI:H (High Integrity Impact): The vulnerability has a high impact on integrity.
• VA:H (High Availability Impact): The vulnerability has a high impact on availability.
• SC:H (High Scope Change): The vulnerability affects components beyond its security scope.
• SI:H (High Integrity Impact): The vulnerability has a high impact on integrity.
• SA:H (High Availability Impact): The vulnerability has a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is through the deletar_documento.php endpoint, where an attacker can inject malicious SQL code. Potential exploitation methods include:

• SQL Injection: Crafting SQL queries that can manipulate the database, extract sensitive information, or alter database contents.
• Data Exfiltration: Extracting sensitive data such as user credentials, personal information, or other confidential data.
• Database Manipulation: Altering database entries to disrupt service or gain unauthorized access.

3. Affected Systems and Software Versions

The vulnerability affects all versions of WeGIA prior to 3.2.14. Users of these versions are at risk and should upgrade to version 3.2.14 or later to mitigate the vulnerability.

4. Recommended Mitigation Strategies

• Immediate Upgrade: Upgrade to WeGIA version 3.2.14 or later, which addresses the SQL Injection vulnerability.
• Input Validation: Implement robust input validation and sanitization mechanisms to prevent SQL Injection attacks.
• Parameterized Queries: Use parameterized queries or prepared statements to ensure that SQL code is not directly executed from user input.
• Web Application Firewall (WAF): Deploy a WAF to detect and block SQL Injection attempts.
• Regular Security 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 focused on Portuguese language users, highlights the importance of securing open-source software used by educational and governmental institutions. The potential for data breaches and unauthorized access underscores the need for vigilant cybersecurity practices within the European Union. Organizations using WeGIA should prioritize patching and implementing robust security measures to protect sensitive information and maintain compliance with data protection regulations such as GDPR.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: deletar_documento.php
• Vulnerability Type: SQL Injection
• Exploitability: High, due to low complexity and no user interaction required.
• Impact: High, affecting confidentiality, integrity, and availability.

Mitigation Steps:

1. Upgrade: Ensure all instances of WeGIA are upgraded to version 3.2.14 or later.
2. Code Review: Conduct a thorough code review to identify and remediate any additional SQL Injection vulnerabilities.
3. Security Training: Provide training to developers on secure coding practices, focusing on SQL Injection prevention.
4. Monitoring: Implement continuous monitoring and logging to detect and respond to any suspicious activities.

References:

• GitHub Advisory: GHSA-3qhx-gfqj-vm2j
• ENISA ID Product: [{"id":"0feca031-f8f4-3544-9199-3afae8dde605","product":{"name":"WeGIA"},"product_version":"< 3.2.14"}]
• ENISA ID Vendor: [{"id":"ea5afb08-9474-3791-b9ad-bcfe23cd5dcd","vendor":{"name":"LabRedesCefetRJ"}}]

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of data breaches and ensure the integrity and availability of their systems.