OS Command Injection in Hitachi Virtual File Platform - CVE-2021-20740
Published: June 18, 2021
Vulnerability identifier: #VU54214
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20740
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in Hitachi File Services Manager. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Hitachi Virtual File Platform
NEC Storage M Series NAS Gasteway Nh4a/Nh8a
NEC Storage M Series NAS Gasteway Nh4b/Nh8b
NEC Storage M Series NAS Gasteway Nh4c/Nh8c
NEC Storage M Series NAS Gasteway Nh4a/Nh8a
NEC Storage M Series NAS Gasteway Nh4b/Nh8b
NEC Storage M Series NAS Gasteway Nh4c/Nh8c
How to mitigate CVE-2021-20740
Install updates from vendor's website.
Hitachi Virtual File Platform - addressed in versions 5.5.3-09, 6.4.3-09
NEC Storage M Series NAS Gasteway Nh4a/Nh8a - update to FOS 5.5.3-08(NEC2.5.4a)
NEC Storage M Series NAS Gasteway Nh4b/Nh8b - update to FOS 6.4.3-08(NEC3.4.2)
NEC Storage M Series NAS Gasteway Nh4c/Nh8c - update to FOS 6.4.3-08(NEC3.4.2)
NEC Storage M Series NAS Gasteway Nh4a/Nh8a - update to FOS 5.5.3-08(NEC2.5.4a)
NEC Storage M Series NAS Gasteway Nh4b/Nh8b - update to FOS 6.4.3-08(NEC3.4.2)
NEC Storage M Series NAS Gasteway Nh4c/Nh8c - update to FOS 6.4.3-08(NEC3.4.2)