[Japanese]

JVNDB-2020-000050

FANUC i Series CNC vulnerable to denial-of-service (DoS)

Overview

Fanuc i Series CNC provided by FANUC CORPORATION contains a denial-of-service (DoS) (CWE-400) vulnerability.

Industrial Control Security Laboratory of Qi An Xin Technology Group Inc. from China 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 4.3 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low
CVSS V2 Severity:
Base Metrics 3.3 (Low) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Partial
Affected Products


FANUC CORPORATION
  • FANUC Power Motion i-MODEL A
  • FANUC Series 0i-Mate D
  • FANUC Series 0i-MODEL B
  • FANUC Series 0i-MODEL C
  • FANUC Series 0i-MODEL D
  • FANUC Series 0i-MODEL F
  • FANUC Series 0i-MODEL F Plus
  • FANUC Series 16i/18i-WB
  • FANUC Series 16i/18i/21i-MODEL B
  • FANUC Series 30i/31i/32i-B Plus
  • FANUC Series 30i/31i/32i-MODEL A
  • FANUC Series 30i/31i/32i/35i-B

For the details, refer to the information provided by the developer (Registered Users Only).
Impact

A remote attacker may cause a denial-of-service (DoS) condition and access to the other devices may be blocked.
Solution

[Update the software or apply the patch]
The developer states that the updates/patches are available. For the details, refer to the information provided by the developer (Registered Users Only).

[Apply workaround]
Applying the following workaround may mitigate the impact of this vulnerability.
* Set up Firewall and restrict access from the devices via network.
Vendor Information

FANUC CORPORATION
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2020-12739
References

  1. JVN : JVN#84959128
  2. National Vulnerability Database (NVD) : CVE-2020-12739
Revision History

  • [2020/07/31]
      Web page was published
  • [2020/08/03]
      Overview : Credit was added
      Common Vulnerabilities and Exposures (CVE) was modified


Date Public2020/07/31
Date First Published2020/07/31
Date Last Updated2020/07/31