Backdoor access issue in Wi-Fi STATION L-02F


Wi-Fi STATION L-02F provided by NTT DOCOMO, INC. contains a backdoor access issue.

Japan Computer Emergency Response Team Coordination Center Global Coordination Division Cyber Metrics Line Information Security Analyst Keisuke Shikano reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 9.8 (Critical) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 10.0 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Complete
  • Integrity Impact: Complete
  • Availability Impact: Complete
Affected Products

  • Wi-Fi STATION L-02F Software version V10g and earlier


An unauthenticated remote attacker may access the device with the administrative privilege and perform an unintended operation.

The reporter has conducted a test and confirmed that an attacker can log in to the device through internet by using an ID and a password, and execute arbitrary command.

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Vendor Information

CWE (What is CWE?)

  1. Permissions(CWE-264) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2017-10845

  1. JVN : JVN#68922465
  2. National Vulnerability Database (NVD) : CVE-2017-10845
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in Wi-Fi STATION L-02F (JVN#68922465) (in Japanese)
  4. JPCERT : JPCERT-AT-2017-0034 (in Japanese)
Revision History

  • [2017/09/12]
      Web page was published 
  • [2018/02/28]
      References : Content was added