Robotic appliance COCOROBO vulnerable to session management


Robotic appliance COCOROBO provided by Sharp Corporation is a robot with cleaning function. Robotic appliance COCOROBO contains a vulnerability in session management (CWE-639).

Kiyotaka ATSUMI of IoT Technology Laboratory, Cyber Grid Japan, LAC Co., Ltd. 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 4.6 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Sharp Corporation
  • RX-CLV1-P firmware versions prior to
  • RX-CLV2-B firmware versions prior to
  • RX-CLV3-N firmware versions prior to
  • RX-V100 firmware versions prior to
  • RX-V200 firmware versions prior to


An attacker on the same LAN may impersonate a user to accessing product. As a result, there is a possibility that an arbitrary operation may be conducted or information may be altered/disclosed.

[Update the Firmware]
Apply the appropriate firmware update according to the information provided by the developer.
Vendor Information

Sharp Corporation
CWE (What is CWE?)

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

  1. CVE-2017-10890

  1. JVN : JVN#76382932
  2. National Vulnerability Database (NVD) : CVE-2017-10890
Revision History

  • [2017/11/16]
      Web page was published
  • [2018/03/14]
      References : Content was added