Vulnerability Details : CVE-2021-20740
Hitachi Virtual File Platform Versions prior to 5.5.3-09 and Versions prior to 6.4.3-09, and NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) allow remote authenticated attackers to execute arbitrary OS commands with root privileges via unspecified vectors.
Products affected by CVE-2021-20740
- cpe:2.3:o:nec:nas_gateway_nh4a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:nec:nas_gateway_nh8a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:nec:nas_gateway_nh4b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:nec:nas_gateway_nh8b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:nec:nas_gateway_nh4c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:nec:nas_gateway_nh8c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:a:hitachi:virtual_file_platform:*:*:*:*:*:*:*:*
- cpe:2.3:a:hitachi:virtual_file_platform:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20740
0.75%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20740
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-20740
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20740
-
https://jvn.jp/en/jp/JVN21298724/index.html
JVN#21298724: Hitachi Virtual File Platform vulnerable to OS command injectionThird Party Advisory
-
https://www.hitachi.co.jp/products/it/storage-solutions/global/sec_info/2021/2021_306.html
Command Injection Vulnerability in Hitachi Virtual File Platform (June 17, 2021):Vulnerability Information:Storage Solutions:HitachiVendor Advisory
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https://jpn.nec.com/security-info/secinfo/nv21-011.html
NV21-011: セキュリティ情報 | NECVendor Advisory
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