EUVD-2025-4159

Comprehensive Technical Analysis of EUVD-2025-4159

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2025-4159, also known as CVE-2025-26347, is classified as a CWE-306 "Missing Authentication for Critical Function." This type of vulnerability occurs when a critical function does not properly authenticate users, allowing unauthorized access to sensitive operations. In this case, the vulnerability affects the maxprofile/menu/routes.lua file in Q-Free MaxTime versions up to and including 2.11.0.

The CVSS Base Score of 9.8 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• AV:N (Attack Vector: Network): The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low): The attack requires minimal skill or resources.
• 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 vulnerability does not change the security scope.
• 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

The primary attack vector for this vulnerability is through crafted HTTP requests. An unauthenticated remote attacker can exploit this vulnerability by sending specially crafted HTTP requests to the affected routes.lua file. This allows the attacker to edit user permissions, potentially granting themselves elevated privileges or modifying the permissions of other users.

Exploitation methods may include:

• Direct HTTP Requests: Sending HTTP requests directly to the vulnerable endpoint to modify user permissions.
• Automated Scripts: Using automated scripts to send multiple requests, attempting to exploit the vulnerability in a systematic manner.
• Man-in-the-Middle (MitM) Attacks: Intercepting and modifying HTTP requests to exploit the vulnerability.

3. Affected Systems and Software Versions

The vulnerability affects Q-Free MaxTime versions up to and including 2.11.0. Organizations using these versions are at risk and should prioritize updating to a patched version as soon as possible.

4. Recommended Mitigation Strategies

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

• Update Software: Upgrade to a patched version of Q-Free MaxTime that addresses this vulnerability.
• Network Segmentation: Implement network segmentation to limit access to the vulnerable system.
• Access Controls: Enforce strict access controls and authentication mechanisms to prevent unauthorized access.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.
• Intrusion Detection Systems (IDS): Deploy IDS to identify and alert on potential exploitation attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant due to the critical nature of the affected software. Q-Free MaxTime is used in various industries, including transportation and logistics, where unauthorized access to user permissions can lead to severe disruptions and potential data breaches. The high CVSS score underscores the urgency for organizations to address this vulnerability promptly to maintain the integrity and security of their systems.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerable Component: The vulnerability resides in the maxprofile/menu/routes.lua file.
• Exploitation: The vulnerability can be exploited by sending crafted HTTP requests to the affected endpoint.
• Detection: Monitor network traffic for unusual HTTP requests targeting the routes.lua file. Implement anomaly detection to identify patterns indicative of exploitation attempts.
• Patching: Ensure that the latest patches and updates from Q-Free are applied to mitigate the vulnerability.
• Configuration: Review and harden the configuration of Q-Free MaxTime to ensure that authentication mechanisms are properly implemented.

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of unauthorized access and potential data breaches.

Conclusion

EUVD-2025-4159 is a critical vulnerability that requires immediate attention from organizations using Q-Free MaxTime. By understanding the technical details, potential attack vectors, and recommended mitigation strategies, security professionals can effectively protect their systems and contribute to the overall cybersecurity resilience of the European landscape.