EUVD-2025-23925

Comprehensive Technical Analysis of EUVD-2025-23925

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-23925 affects the PPPoE configuration interface of the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). The issue allows for command injection via the 'user' parameter, which is processed unsafely during network setup. This vulnerability enables attackers to execute arbitrary system commands with root privileges, posing a significant risk to the device and its network.

Severity Evaluation:

• Base Score: 9.4 (Critical)
• Base Score Version: 4.0
• Base Score Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

The high base score indicates that this vulnerability is critical. The attack vector (AV:A) suggests that the attacker needs to be adjacent to the device, but the low attack complexity (AC:L) and the lack of required privileges (PR:N) or user interaction (UI:N) make it relatively easy to exploit. The impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H), as well as the scope change (SC:H), impacting the entire system (SI:H, SA:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Local Network Access: An attacker with access to the local network can exploit this vulnerability by sending crafted PPPoE configuration requests to the device.
• Physical Access: An attacker with physical access to the device can connect directly and exploit the vulnerability.

Exploitation Methods:

• Command Injection: By injecting malicious commands into the 'user' parameter, an attacker can execute arbitrary system commands with root privileges. This can lead to full control over the device, including the ability to install malware, exfiltrate data, or disrupt network operations.

3. Affected Systems and Software Versions

Affected Systems:

• Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02)

Software Versions:

• All versions of the firmware for the M300 Wi-Fi Repeater are potentially affected unless specifically patched for this vulnerability.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Network Segmentation: Isolate the affected devices on a separate network segment to limit exposure.
• Access Control: Restrict physical and network access to the device to trusted personnel only.
• Monitoring: Implement continuous monitoring for suspicious activity on the network.

Long-Term Mitigation:

• Firmware Update: Apply the latest firmware updates from the vendor as soon as they are available.
• Input Validation: Ensure that all input parameters are properly validated and sanitized to prevent command injection.
• Security Audits: Conduct regular security audits and vulnerability assessments on all network devices.

5. Impact on European Cybersecurity Landscape

The vulnerability in the Shenzhen Aitemi M300 Wi-Fi Repeater poses a significant threat to European cybersecurity, particularly in environments where these devices are widely deployed. The ability to execute arbitrary commands with root privileges can lead to widespread network compromises, data breaches, and service disruptions. This underscores the importance of robust supply chain security and the need for stringent security standards for IoT devices.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Component: PPPoE configuration interface
• Vulnerable Parameter: 'user' parameter
• Exploitation: Unsafe processing of input allows for command injection
• Privileges: Execution of commands with root privileges

Detection and Response:

• Log Analysis: Monitor logs for unusual command execution or network activity.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious traffic patterns.
• Incident Response: Develop and implement an incident response plan to quickly address any detected exploitation attempts.

References:

• Chocapikk Blog Post
• AliExpress Product Page

Aliases:

• CVE-2025-34150

Assigner:

• VulnCheck

ENISA IDs:

• Product: 8364956a-ebef-37ff-9310-c3e8974a739a (M300 Wi-Fi Repeater)
• Vendor: 7630e131-3a20-3928-aa9e-604b3a26378c (Shenzhen Aitemi E Commerce Co. Ltd.)

By addressing this vulnerability promptly and effectively, organizations can mitigate the risk of exploitation and ensure the security and integrity of their networks.