CVE-2025-25053

Remediation / Mitigation Strategy for CVE-2025-25053

Vulnerability: OS Command Injection

Description: An OS command injection vulnerability exists in the web UI (specifically the setting page) of Wi-Fi AP UNIT ‘AC-WPS-11ac series’. A remote attacker, authenticated and logged into the device, can exploit this flaw to execute arbitrary operating system commands on the underlying system.

Severity: High (CVSS v3 Score: 8.8)

  • Vector: Network (AV:N)
  • Attack Complexity: Low (AC:L)
  • Privileges Required: High (PR:H) - Requires authenticated access.
  • User Interaction: None (UI:N)
  • Scope: Unchanged (S:U)
  • Confidentiality Impact: High (C:H)
  • Integrity Impact: High (I:H)
  • Availability Impact: High (A:H)

Known Exploit: A remote attacker who can successfully authenticate to the ‘AC-WPS-11ac series’ Wi-Fi AP UNIT can inject and execute arbitrary OS commands via the vulnerable setting page within the web UI.

Mitigation & Remediation:

  1. Vendor Patching (Priority 1): Immediately apply the official security patch provided by the vendor (if and when available). This is the most effective long-term solution. Continuously monitor the vendor’s website or security advisories for updates.

  2. Input Validation and Sanitization: Implement strict input validation and sanitization on all user-supplied data within the web UI, especially on the setting page. All user input must be carefully validated to ensure that it does not contain any malicious OS command sequences before being used in any system calls or executed. Use allow lists for acceptable input, rather than relying on blacklist filtering.

  3. Principle of Least Privilege: Review and restrict the privileges granted to the web UI process. Ensure it operates with the minimum necessary permissions to perform its intended functions. If the web UI process doesn’t need root privileges, restrict access accordingly.

  4. Web Application Firewall (WAF): Deploy a web application firewall (WAF) in front of the device’s web UI. Configure the WAF with rules to detect and block common OS command injection attempts. Regularly update the WAF rule set.

  5. Authentication Strengthening: Implement Multi-Factor Authentication (MFA) for all web UI logins to reduce the risk of unauthorized access and subsequent exploitation.

  6. Network Segmentation: Isolate the ‘AC-WPS-11ac series’ Wi-Fi AP UNIT on a separate network segment with restricted access to other critical systems. Limit network traffic between the vulnerable device and other parts of the network.

  7. Disable Unnecessary Services: Disable any unnecessary services or features on the Wi-Fi AP UNIT that are not required for its operation. This reduces the attack surface.

  8. Regular Security Audits: Conduct regular security audits and penetration testing of the Wi-Fi AP UNIT’s web UI to identify and address any new or overlooked vulnerabilities.

  9. Intrusion Detection/Prevention Systems (IDS/IPS): Implement an IDS/IPS to monitor network traffic for suspicious activity and potential command injection attempts. Configure alerts to notify administrators of any detected anomalies.

  10. Temporary Workaround (If patching is delayed): Consider temporarily disabling or restricting access to the vulnerable setting page if patching is delayed, weighing the operational impact against the risk. Provide a prominent warning to users.

Assigner

Date

  • Published Date: 2025-04-09 09:15:16
  • Updated Date: 2025-04-09 20:02:42

More Details

CVE-2025-25053