Hitachi Virtual File Platform vulnerable to OS command injection


Hitachi Virtual File Platform provided by Hitachi contains an OS command injection vulnerability (CWE-78) due to a flaw in processing parameters of the HTTP requests.

Hiroki MATSUKUMA of Cyber Defense Institute, Inc. 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 8.8 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 9.0 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Complete
  • Integrity Impact: Complete
  • Availability Impact: Complete
Affected Products

NEC Corporation
  • Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a)
  • Storage M Series NAS Gateway Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2)
Hitachi, Ltd
  • Hitachi Virtual File Platform Versions prior to 5.5.3-09
  • Hitachi Virtual File Platform Versions prior to 6.4.3-09


A remote attacker who can log in to the product may execute an arbitrary OS command with root privilege.

[Update the Software]
Update the software to the latest version according to the information provided by the developer.
Vendor Information

NEC Corporation Hitachi, Ltd
CWE (What is CWE?)

  1. OS Command Injection(CWE-78) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2021-20740

  1. JVN : JVN#21298724
Revision History

  • [2021/06/18]
      We page was published