EUVD-2025-21780

Comprehensive Technical Analysis of EUVD-2025-21780

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the EUVD entry EUVD-2025-21780 pertains to a SQL Injection flaw in the WeGIA web manager, specifically in versions prior to 3.4.6. The vulnerability is located in the /html/funcionario/profile_dependente.php endpoint, 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
• Base Score Version: 4.0
• Base Score Vector: 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 of 9.4 indicates a critical vulnerability. The CVSS vector breakdown shows that the attack vector is network-based (AV:N), the attack complexity is low (AC:L), no user interaction is required (UI:N), and the attacker needs low privileges (PR:L). The impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H), and the scope change is also high (SC:H, SI:H, SA:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: The vulnerability can be exploited over the network, making it accessible to remote attackers.
• Low Complexity: The attack requires minimal skill and resources to execute.
• Low Privileges: The attacker needs only low-level privileges to exploit the vulnerability.

Exploitation Methods:

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

3. Affected Systems and Software Versions

Affected Systems:

• WeGIA web manager versions prior to 3.4.6.

Software Versions:

• All versions of WeGIA before 3.4.6 are vulnerable.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade to Version 3.4.6: Users should immediately upgrade to WeGIA version 3.4.6 or later, which includes the fix for this vulnerability.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially for the id_dependente parameter.
• 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 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.
• Patch Management: Implement a robust patch management process to ensure timely updates and patches.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, an open-source web manager focused on the Portuguese language and charitable institutions, highlights the importance of securing open-source software. Given the critical nature of the vulnerability, it poses a significant risk to organizations using WeGIA, particularly those in the charitable sector. The potential for data breaches, data manipulation, and service disruption can have severe consequences, including financial loss, reputational damage, and legal implications.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: /html/funcionario/profile_dependente.php
• Parameter: id_dependente
• Vulnerable Versions: WeGIA < 3.4.6
• Fixed Version: 3.4.6

Exploitation Example: An attacker could craft a malicious SQL query by injecting SQL code into the id_dependente parameter, such as:

id_dependente=1'; DROP TABLE users; --

This would result in the execution of the DROP TABLE users command, deleting the users table from the database.

Detection and Monitoring:

• Log Analysis: Monitor database logs for unusual SQL queries or errors.
• Intrusion Detection Systems (IDS): Implement IDS to detect and alert on suspicious activities.
• Anomaly Detection: Use anomaly detection tools to identify unusual patterns in database queries.

References:

• GitHub Security Advisory

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risk of SQL injection attacks and protect their critical data and systems.