EUVD-2025-23923

Comprehensive Technical Analysis of EUVD-2025-23923

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-23923 is an unauthenticated OS command injection vulnerability in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). This vulnerability allows remote attackers within Wi-Fi range to inject arbitrary shell commands that execute as root, leading to full device compromise.

Severity Evaluation:

• CVSS Base Score: 9.4
• CVSS 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 of 9.4 indicates a critical vulnerability. The attack vector (AV:A) is adjacent, meaning the attacker must be within Wi-Fi range. The attack complexity (AC:L) is low, and no privileges (PR:N) or user interaction (UI:N) are required. The impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H), and the scope change (SC:H) indicates that the vulnerability can affect components beyond the initial security scope.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Wi-Fi Range: Attackers need to be within the Wi-Fi range of the vulnerable device.
• WISP Mode Configuration: The vulnerability is triggered when configuring the device in WISP mode.

Exploitation Methods:

• Unsanitized 'ssid' Parameter: The 'ssid' parameter is passed unsanitized to system-level scripts, allowing for command injection.
• Arbitrary Shell Commands: Attackers can inject shell commands that execute with root privileges, leading to full device compromise.

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, as indicated by the product version "*".

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Disable WISP Mode: Temporarily disable WISP mode to prevent exploitation.
• Network Segmentation: Isolate the Wi-Fi repeater from critical network segments.
• Monitoring: Implement monitoring to detect unusual network activity.

Long-Term Mitigation:

• Firmware Update: Apply a firmware update from the vendor that addresses the vulnerability.
• Input Sanitization: Ensure that all input parameters are properly sanitized in future firmware updates.
• Regular Audits: Conduct regular security audits of network devices.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European organizations and individuals using the affected Wi-Fi repeater. The potential for full device compromise can lead to unauthorized access, data breaches, and further network infiltration. Given the widespread use of Wi-Fi repeaters in both residential and commercial settings, the impact could be extensive if not addressed promptly.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-34148
• Vulnerable Parameter: 'ssid'
• Exploitation: Inject shell commands via the 'ssid' parameter when configuring WISP mode.

Detection and Response:

• Log Analysis: Review system logs for unusual command executions.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious network activity.
• Patch Management: Ensure that all network devices are regularly updated with the latest firmware.

References:

• Chocapikk Blog Post
• AliExpress Product Page

Conclusion: The unauthenticated OS command injection vulnerability in the Shenzhen Aitemi M300 Wi-Fi Repeater is a critical issue that requires immediate attention. Organizations and individuals should take proactive measures to mitigate the risk, including disabling WISP mode, applying firmware updates, and implementing robust monitoring and detection mechanisms. The European cybersecurity community should be vigilant and collaborate to address similar vulnerabilities in network devices to enhance overall security posture.