EUVD-2025-1930

Comprehensive Technical Analysis of EUVD-2025-1930

1. Vulnerability Assessment and Severity Evaluation

The EUVD entry EUVD-2025-1930 describes a SQL injection vulnerability in TeamCal Neo, version 3.8.2. The vulnerability allows an attacker to execute arbitrary SQL commands by injecting malicious SQL statements via the ‘abs’ parameter in the ‘/teamcal/src/index.php’ file.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CVSS score of 9.8 indicates a critical vulnerability. The vector string breaks down as follows:

• AV:N (Attack Vector: Network) - The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low) - The attack requires low complexity.
• PR:N (Privileges Required: None) - No privileges are required to exploit the vulnerability.
• UI:N (User Interaction: None) - No user interaction is required.
• S:U (Scope: Unchanged) - The scope of the vulnerability does not change.
• C:H (Confidentiality: High) - The vulnerability has a high impact on confidentiality.
• I:H (Integrity: High) - The vulnerability has a high impact on integrity.
• A:H (Availability: High) - The vulnerability has a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: An attacker can exploit this vulnerability remotely over the network.
• Web Application Attack: The vulnerability is present in a web application, making it accessible via HTTP/HTTPS requests.

Exploitation Methods:

• SQL Injection: The attacker can inject malicious SQL statements into the ‘abs’ parameter in the ‘/teamcal/src/index.php’ file. This can be done by crafting a specially designed URL or form input that includes SQL commands.
• Automated Tools: Attackers may use automated tools to scan for and exploit SQL injection vulnerabilities.

3. Affected Systems and Software Versions

Affected Software:

• Product: TeamCal Neo
• Version: 3.8.2

Vendor:

• Name: Lewe

ENISA IDs:

• Product ID: 01cba302-6cd1-3a13-87ff-850fabe08bcb
• Vendor ID: fec6fb16-12ca-3d68-9106-14c9d2ce9c5c

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest security patches provided by the vendor.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially for the ‘abs’ parameter.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewall (WAF): Deploy a WAF to filter out malicious SQL injection attempts.

Long-Term Mitigation:

• Code Review: Conduct a thorough code review to identify and fix similar vulnerabilities.
• Security Training: Provide security training for developers to prevent future SQL injection vulnerabilities.
• Regular Updates: Ensure that all software components are regularly updated and patched.

5. Impact on European Cybersecurity Landscape

The presence of such a critical vulnerability in a widely used application like TeamCal Neo can have significant implications for the European cybersecurity landscape:

• Data Breaches: Organizations using TeamCal Neo may face data breaches, leading to the exposure of sensitive information.
• Compliance Issues: Non-compliance with data protection regulations such as GDPR can result in legal and financial penalties.
• Reputation Damage: Organizations may suffer reputational damage due to security incidents.
• Operational Disruption: The vulnerability can lead to operational disruptions, affecting the availability of services.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-0929
• EPSS Score: 1 (indicating a low likelihood of exploitation in the wild, but this should not be relied upon due to the critical nature of the vulnerability)

Exploitation Example: An attacker could craft a malicious URL like:

http://example.com/teamcal/src/index.php?abs=1'; DROP TABLE users;--

This URL injects a SQL command that drops the ‘users’ table, demonstrating the potential for data loss and unauthorized actions.

Detection Methods:

• Log Analysis: Monitor web server logs for unusual SQL queries or error messages indicating SQL injection attempts.
• Intrusion Detection Systems (IDS): Use IDS to detect and alert on suspicious network traffic patterns.
• Application Security Testing: Regularly perform static and dynamic application security testing to identify vulnerabilities.

References:

• INCIBE Notice

Conclusion

The SQL injection vulnerability in TeamCal Neo, version 3.8.2, is a critical issue that requires immediate attention. Organizations should prioritize patching and implementing robust security measures to mitigate the risk. The European cybersecurity landscape could face significant challenges if this vulnerability is exploited, underscoring the need for proactive security management.