EUVD-2025-4173

Comprehensive Technical Analysis of EUVD-2025-4173

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability identified as EUVD-2025-4173 pertains to a "Missing Authentication for Critical Function" (CWE-306) in the maxprofile/setup/routes.lua file of Q-Free MaxTime versions up to and including 2.11.0. This flaw allows an unauthenticated remote attacker to perform a factory reset on the device via specially crafted HTTP requests.

Severity Evaluation: The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level. The scoring vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H breaks down as follows:

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

This high severity score underscores the critical nature of the vulnerability, which can lead to significant disruption and potential data loss.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated HTTP Requests: An attacker can send crafted HTTP requests to the vulnerable endpoint without needing any authentication.
• Network Access: The attacker needs network access to the device, which could be achieved through various means such as compromising a network perimeter or exploiting other vulnerabilities.

Exploitation Methods:

• Crafted HTTP Requests: The attacker can send specially crafted HTTP requests to the maxprofile/setup/routes.lua endpoint, triggering a factory reset.
• Automated Scripts: Attackers can use automated scripts to scan for vulnerable devices and send the malicious requests en masse.

3. Affected Systems and Software Versions

Affected Systems:

• Q-Free MaxTime: All versions up to and including 2.11.0.

Software Versions:

• MaxTime versions: 0 ≤ 2.11.0

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Network Segmentation: Isolate the affected devices from public networks to limit exposure.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to the vulnerable endpoint.
• Monitoring: Increase monitoring for unusual network activity targeting the maxprofile/setup/routes.lua endpoint.

Long-Term Mitigation:

• Patching: Apply the latest patches and updates provided by Q-Free to mitigate the vulnerability.
• Authentication Enforcement: Ensure that all critical functions require proper authentication.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.

5. Impact on European Cybersecurity Landscape

Impact Analysis:

• Critical Infrastructure: Q-Free MaxTime devices are often used in critical infrastructure settings such as traffic management systems. A successful exploit could lead to significant disruptions in traffic management, potentially causing public safety issues.
• Economic Impact: Disruptions in traffic management can lead to economic losses due to delays and inefficiencies.
• Reputation: Organizations using vulnerable devices may face reputational damage if an attack leads to public disruptions.

Regulatory Compliance:

• GDPR: Although this vulnerability does not directly impact data confidentiality, organizations must ensure compliance with GDPR by protecting the integrity and availability of their systems.
• NIS Directive: Organizations operating critical infrastructure must comply with the NIS Directive, which mandates robust cybersecurity measures.

6. Technical Details for Security Professionals

Vulnerability Details:

• File Path: maxprofile/setup/routes.lua
• Vulnerable Function: The specific function within the file that allows factory reset without authentication.
• Exploit Payload: Crafted HTTP requests targeting the vulnerable endpoint to trigger a factory reset.

Detection and Response:

• Intrusion Detection Systems (IDS): Configure IDS to detect and alert on suspicious HTTP requests targeting the maxprofile/setup/routes.lua endpoint.
• Log Analysis: Regularly review logs for any unauthorized access attempts or successful factory resets.
• Incident Response Plan: Develop and implement an incident response plan specific to this vulnerability, including steps for containment, eradication, and recovery.

Conclusion: The EUVD-2025-4173 vulnerability represents a significant risk to organizations using Q-Free MaxTime devices. Immediate mitigation strategies should be implemented to protect against potential exploits, while long-term measures such as patching and regular audits are essential for maintaining robust cybersecurity posture. The impact on the European cybersecurity landscape underscores the need for vigilant monitoring and compliance with regulatory standards.