EUVD-2025-35116

Comprehensive Technical Analysis of EUVD-2025-35116

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-35116 pertains to a command injection flaw in Omada gateways, which can be exploited post-authentication by an admin on the web portal. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The CVSS vector breakdown is as follows:

• Attack Vector (AV): Adjacent (A) - The attacker must be on the same network segment.
• Attack Complexity (AC): Low (L) - The attack is relatively straightforward to execute.
• Authentication (AT): None (N) - No additional authentication is required beyond the initial admin login.
• Privileges Required (PR): High (H) - The attacker needs high privileges (admin access).
• User Interaction (UI): None (N) - No user interaction is required.
• Confidentiality (VC): High (H) - Complete loss of confidentiality.
• Integrity (VI): High (H) - Complete loss of integrity.
• Availability (VA): High (H) - Complete loss of availability.
• Scope (SC): Low (L) - The vulnerability does not change the security scope.
• Scope Integrity (SI): Low (L) - The scope integrity impact is low.
• Scope Availability (SA): High (H) - The scope availability impact is high.

This high severity score underscores the critical nature of the vulnerability, which can lead to significant security breaches if exploited.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector involves an authenticated admin user injecting malicious commands through the web portal interface. Potential exploitation methods include:

• Command Injection: An attacker with admin credentials can inject arbitrary commands into the system, leading to unauthorized actions such as data exfiltration, system configuration changes, or even complete system takeover.
• Privilege Escalation: Once authenticated, the attacker can escalate privileges to execute commands with higher permissions, potentially affecting other systems on the network.
• Persistent Access: The attacker can install backdoors or other malicious software to maintain persistent access to the system.

3. Affected Systems and Software Versions

The vulnerability affects multiple Omada and Festa gateway models. The specific versions are:

• Omada Pro gateways: Versions prior to G36 1.1.4 and G611 1.2.2.
• Omada gateways: Versions prior to ER8411 1.3.3, ER7412-M2 1.1.0, ER707-M2 1.3.1, ER7206 2.2.2, ER605 2.3.1, ER706W 1.2.1, ER706W-4G 1.2.1, ER7212PC 2.1.3.
• Festa gateways: Versions prior to FR365 1.1.10, FR205 1.0.3, FR307 1.2.5.

4. Recommended Mitigation Strategies

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

• Patch Management: Immediately update the affected gateways to the latest firmware versions provided by TP-Link.
• Access Control: Implement strict access controls and monitor admin activities closely. Use multi-factor authentication (MFA) for admin logins.
• Network Segmentation: Segment the network to limit the attack surface and isolate critical systems.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities and potential exploitation attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European organizations using the affected Omada and Festa gateways. Given the critical nature of these devices in network infrastructure, successful exploitation could lead to widespread disruptions and data breaches. This underscores the importance of timely patching and robust cybersecurity practices to protect against such threats.

6. Technical Details for Security Professionals

• Detection: Security professionals should look for unusual command execution patterns and unauthorized access attempts in system logs. Tools like SIEM (Security Information and Event Management) can help in detecting anomalies.
• Response: In case of a suspected breach, isolate the affected device immediately and conduct a thorough investigation. Ensure that all admin credentials are reset and that the system is patched to the latest version.
• Prevention: Regularly update firmware and apply security patches. Implement least privilege access policies and ensure that admin accounts are closely monitored.

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and maintain the integrity and security of their network infrastructure.

References

• Omada Networks Support Document
• Omada Router Information
• Omada Pro Router Information
• TP-Link SOHO Festa Gateway
• NVD CVE-2025-7850

This analysis provides a comprehensive overview of the vulnerability, its potential impact, and the necessary steps to mitigate the risk effectively.