EUVD-2025-21419

Comprehensive Technical Analysis of EUVD-2025-21419

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-21419 in the ActADUR local server product, developed by ProTNS, is rated as critical with a base score of 9.4 according to CVSS version 4.0. This high score indicates a severe risk due to the potential for remote code inclusion on host systems. The vulnerability encompasses multiple issues:

• Command Injection: Allows attackers to execute arbitrary commands on the host system.
• Use of Hard-coded Credentials: Compromises security by embedding static credentials within the code.
• Improper Authentication: Weakens the authentication mechanism, making it easier for unauthorized access.
• Binding to an Unrestricted IP Address: Exposes the server to potential attacks from any IP address.

The CVSS vector CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L indicates:

• Attack Vector (AV:A): Adjacent network.
• Attack Complexity (AC:L): Low.
• Authentication (AT:N): None required.
• Privileges Required (PR:N): None.
• User Interaction (UI:N): None.
• Confidentiality Impact (VC:H): High.
• Integrity Impact (VI:H): High.
• Availability Impact (VA:L): Low.
• Scope Change (SC:H): High.
• Scope Impact (SI:H): High.
• Scope Availability (SA:L): Low.

2. Potential Attack Vectors and Exploitation Methods

• Command Injection: An attacker could craft malicious input to execute arbitrary commands on the server, leading to unauthorized access, data exfiltration, or system compromise.
• Hard-coded Credentials: Attackers could extract these credentials from the codebase, gaining unauthorized access to the system.
• Improper Authentication: Weak authentication mechanisms could be bypassed, allowing attackers to gain access without proper credentials.
• Unrestricted IP Binding: The server's exposure to any IP address increases the attack surface, making it vulnerable to remote attacks.

3. Affected Systems and Software Versions

The vulnerability affects ActADUR versions from v2.0.1.9 before v2.0.2.0. All systems running these versions are at risk and should be updated to version v2.0.2.0 or above to mitigate the vulnerability.

4. Recommended Mitigation Strategies

• Immediate Patching: Update to ActADUR version v2.0.2.0 or above.
• Network Segmentation: Implement network segmentation to limit the exposure of the server.
• Access Controls: Enforce strict access controls and authentication mechanisms.
• Code Review: Conduct a thorough code review to identify and remove hard-coded credentials.
• Input Validation: Implement robust input validation to prevent command injection attacks.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The critical nature of this vulnerability poses a significant threat to organizations using ActADUR, particularly within the European Union. The potential for remote code execution and unauthorized access could lead to data breaches, financial loss, and disruption of services. This underscores the importance of timely patching and adherence to best security practices.

6. Technical Details for Security Professionals

• Command Injection: Ensure all user inputs are properly sanitized and validated. Use parameterized queries and avoid direct command execution with user input.
• Hard-coded Credentials: Replace hard-coded credentials with secure, configurable credentials stored in secure locations such as environment variables or secure vaults.
• Improper Authentication: Implement multi-factor authentication (MFA) and ensure that authentication mechanisms are robust and regularly updated.
• Unrestricted IP Binding: Configure the server to bind to specific, trusted IP addresses rather than allowing unrestricted access.

Conclusion

The vulnerability EUVD-2025-21419 in ActADUR is a critical issue that requires immediate attention. Organizations should prioritize updating to the latest version and implement additional security measures to mitigate the risk. The European cybersecurity landscape must remain vigilant against such vulnerabilities to protect against potential breaches and ensure the integrity and security of digital infrastructure.

References

• ProTNS Advisory
• ENISA ID Product: 8060b95c-89e1-383e-ba3f-02bf4a821718
• ENISA ID Vendor: 1f202d5b-ece7-3970-bc56-a932dd4d3dfc
• CVE Alias: CVE-2025-3621