EUVD-2025-20460

Comprehensive Technical Analysis of EUVD-2025-20460

1. Vulnerability Assessment and Severity Evaluation

The EUVD entry EUVD-2025-20460 describes a SQL injection vulnerability in versions prior to 4.7.0 of Quiter Gateway by Quiter. This vulnerability is rated with a CVSS Base Score of 9.3, indicating a critical severity level. The CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N highlights the following characteristics:

• Attack Vector (AV:N): The vulnerability can be exploited over the network.
• Attack Complexity (AC:L): The attack requires low complexity.
• Authentication (AT:N): No authentication is required to exploit the vulnerability.
• Privileges Required (PR:N): No privileges are required.
• User Interaction (UI:N): No user interaction is required.
• Confidentiality Impact (VC:H): High impact on confidentiality.
• Integrity Impact (VI:H): High impact on integrity.
• Availability Impact (VA:H): High impact on availability.

Given these factors, the vulnerability poses a significant risk to the confidentiality, integrity, and availability of the affected systems.

2. Potential Attack Vectors and Exploitation Methods

The SQL injection vulnerability can be exploited through the pagina.filter.categoria mensaje parameter in the /QuiterGatewayWeb/api/v1/sucesospagina endpoint. Potential attack vectors include:

• Direct SQL Injection: An attacker can inject malicious SQL queries directly into the vulnerable parameter to manipulate the database.
• Blind SQL Injection: An attacker can use blind SQL injection techniques to extract information without direct feedback from the application.
• Union-Based SQL Injection: An attacker can use UNION SQL queries to combine the results of two SELECT statements into a single result.

Exploitation methods may involve:

• Automated Tools: Using automated SQL injection tools to identify and exploit the vulnerability.
• Manual Exploitation: Crafting custom SQL queries to retrieve, create, update, and delete database records.

3. Affected Systems and Software Versions

The vulnerability affects Quiter Gateway versions prior to 4.7.0. Specifically, the affected product is identified as "Quiter Gateway (Java WAR on Apache Tomcat)" with versions ranging from 0 to less than 4.7.0.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Upgrade to the Latest Version: Upgrade Quiter Gateway to version 4.7.0 or later, which includes the necessary security patches.
• Input Validation and Sanitization: Implement robust input validation and sanitization mechanisms to prevent malicious SQL queries from being executed.
• Parameterized Queries: Use parameterized queries or prepared statements to ensure that SQL queries are executed safely.
• Web Application Firewalls (WAF): Deploy WAFs to monitor and block malicious SQL injection attempts.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to organizations using Quiter Gateway, particularly within the European Union. The potential for data breaches, unauthorized data manipulation, and service disruptions can have severe consequences, including financial loss, reputational damage, and legal repercussions under GDPR.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerable Endpoint: /QuiterGatewayWeb/api/v1/sucesospagina
• Vulnerable Parameter: pagina.filter.categoria mensaje
• Exploitation Techniques: Direct SQL injection, blind SQL injection, union-based SQL injection.
• Mitigation Techniques: Input validation, parameterized queries, WAF deployment.
• References: For further information, refer to the INCIBE advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-quiterweb-autoweb-quiter.

Conclusion

The SQL injection vulnerability in Quiter Gateway versions prior to 4.7.0 is a critical issue that requires immediate attention. Organizations should prioritize upgrading to the latest version and implementing robust security measures to mitigate the risk. The potential impact on the European cybersecurity landscape underscores the importance of proactive security management and regular vulnerability assessments.