EUVD-2025-23310

Comprehensive Technical Analysis of EUVD-2025-23310

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-23310 pertains to an access control issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 routers. This flaw allows unauthenticated attackers to access the router's settings file, potentially exposing sensitive information. The CVSS (Common Vulnerability Scoring System) 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 (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• PR:N (No Privileges Required): No authentication is needed to exploit the vulnerability.
• UI:N (No User Interaction): No user interaction is required.
• S:U (Unchanged): The vulnerability does not affect other systems.
• C:H (High Confidentiality Impact): Sensitive information can be accessed.
• I:H (High Integrity Impact): The integrity of the system can be compromised.
• A:H (High Availability Impact): The availability of the system can be disrupted.

2. Potential Attack Vectors and Exploitation Methods

Given the nature of the vulnerability, potential attack vectors include:

• Network Scanning: Attackers can scan for vulnerable Intelbras RX1500 and RX3000 routers on the internet.
• Direct Access: Unauthenticated attackers can directly access the router's settings file via HTTP/HTTPS requests.
• Automated Scripts: Malicious actors can use automated scripts to exploit the vulnerability en masse, targeting multiple devices simultaneously.

Exploitation methods may involve:

• Information Gathering: Extracting sensitive information such as configuration settings, credentials, and network details.
• Further Compromise: Using the obtained information to gain further access to the network or other connected devices.

3. Affected Systems and Software Versions

The affected systems are:

• Intelbras RX1500 v2.2.9
• Intelbras RX3000 v1.0.11

Users and organizations utilizing these specific versions of Intelbras routers are at risk and should take immediate action to mitigate the vulnerability.

4. Recommended Mitigation Strategies

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

• Patch Management: Apply the latest firmware updates provided by Intelbras. Ensure that the routers are running versions that address this vulnerability.
• Access Control: Implement strict access control measures, including firewall rules and network segmentation, to limit exposure to the internet.
• Monitoring and Logging: Enable logging and monitoring to detect any unauthorized access attempts.
• Network Security: Use VPNs or other secure communication methods to access the router's settings remotely.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using the affected Intelbras routers. The potential for unauthenticated access to sensitive information can lead to data breaches, unauthorized network access, and further cyber-attacks. Given the critical nature of the vulnerability, it is essential for European cybersecurity authorities to disseminate information and guidance to affected parties promptly.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Detection: Use network intrusion detection systems (NIDS) to monitor for unusual access patterns to the router's settings file.
• Incident Response: Develop an incident response plan that includes steps for identifying compromised routers, isolating affected devices, and applying patches.
• Forensic Analysis: Conduct forensic analysis on compromised routers to understand the extent of the breach and the information accessed.
• Communication: Ensure clear communication with stakeholders, including users, IT departments, and cybersecurity teams, to coordinate mitigation efforts effectively.

Conclusion

The vulnerability described in EUVD-2025-23310 is critical and requires immediate attention from organizations and individuals using the affected Intelbras routers. By implementing the recommended mitigation strategies and staying vigilant, the risk can be significantly reduced. European cybersecurity authorities should prioritize disseminating information and providing support to ensure the vulnerability is addressed effectively.