EUVD-2025-37480

Comprehensive Technical Analysis of EUVD-2025-37480

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-37480, also known as CVE-2025-0987, is an Authorization Bypass Through User-Controlled Key vulnerability affecting CVLand, a product by CB Project Ltd. Co. The vulnerability allows for Parameter Injection, which can lead to unauthorized access and potential data manipulation.

Severity Evaluation:

• Base Score: 9.9 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

The CVSS score of 9.9 indicates a critical vulnerability. The vector string breakdown is as follows:

• AV:N (Attack Vector: Network) - The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low) - The attack requires low complexity to execute.
• PR:L (Privileges Required: Low) - The attacker requires low privileges to exploit the vulnerability.
• UI:N (User Interaction: None) - No user interaction is required for the attack to succeed.
• S:C (Scope: Changed) - The vulnerability affects a different security scope.
• C:H (Confidentiality: High) - There is a high impact on confidentiality.
• I:H (Integrity: High) - There is a high impact on integrity.
• A:L (Availability: Low) - There is a low impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attacks: Given the AV:N vector, attackers can exploit this vulnerability remotely over the network.
• Parameter Injection: The vulnerability allows for the injection of malicious parameters, which can bypass authorization mechanisms.

Exploitation Methods:

• Unauthorized Access: Attackers can inject parameters to gain unauthorized access to sensitive data or functionalities.
• Data Manipulation: By injecting malicious parameters, attackers can manipulate data, leading to integrity issues.
• Privilege Escalation: If the injected parameters allow for privilege escalation, attackers can gain higher-level access to the system.

3. Affected Systems and Software Versions

Affected Product:

• Product Name: CVLand
• Vendor: CB Project Ltd. Co.
• Affected Versions: 2.1.0 through 20251103

All versions of CVLand from 2.1.0 up to and including 20251103 are affected by this vulnerability.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest security patches provided by CB Project Ltd. Co. as soon as they are available.
• Access Controls: Implement strict access controls and monitor for any unusual activity.
• Network Segmentation: Segment the network to limit the scope of potential attacks.

Long-Term Mitigation:

• Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
• User Training: Educate users on the importance of secure practices and the risks associated with parameter injection.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.

5. Impact on European Cybersecurity Landscape

The critical nature of this vulnerability poses a significant risk to organizations using CVLand within the European Union. Given the high impact on confidentiality and integrity, unauthorized access and data manipulation can lead to severe consequences, including data breaches, financial loss, and reputational damage.

Regulatory Compliance:

• GDPR: Organizations must ensure compliance with GDPR, as unauthorized access to personal data can result in hefty fines and legal repercussions.
• NIS Directive: Critical infrastructure providers must adhere to the NIS Directive, ensuring robust cybersecurity measures are in place.

6. Technical Details for Security Professionals

Technical Analysis:

• Parameter Injection: The vulnerability involves the injection of user-controlled keys, which can bypass authorization mechanisms. This typically occurs when input validation is insufficient, allowing attackers to manipulate parameters.
• Authorization Bypass: The bypass can lead to unauthorized access to restricted functionalities or data, posing a significant risk to the system's security.

Detection and Response:

• Log Analysis: Monitor logs for any unusual parameter values or access patterns that indicate potential exploitation.
• Anomaly Detection: Implement anomaly detection mechanisms to identify deviations from normal behavior.
• Incident Response: Develop an incident response plan tailored to this vulnerability, including steps for containment, eradication, and recovery.

References:

• TR-CERT Advisory
• NVD Detail

By addressing this vulnerability promptly and comprehensively, organizations can mitigate the risks associated with EUVD-2025-37480 and enhance their overall cybersecurity posture.