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CVE-2021-20740

Quick assessment

Affected
Hitachi and NEC Corporation Hitachi Virtual File Platform and NEC Storage M Series NAS Gateway which uses Hitachi Virtual File Platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hitachi Virtual File Platform是日本日立（Hitachi）公司的一个虚拟文件平台。 Hitachi Virtual File Platform 存在操作系统命令注入漏洞，该漏洞源于输入验证不正确。经过远程身份验证的攻击者可以将特制数据传递给应用程序，并在目标系统上执行任意shell命令。

AI Predicted 8.4 Difficulty: Easy EPSS 3.11% · P87

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-20740

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Hitachi Virtual File Platform 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hitachi Virtual File Platform是日本日立（Hitachi）公司的一个虚拟文件平台。 Hitachi Virtual File Platform 存在操作系统命令注入漏洞，该漏洞源于输入验证不正确。经过远程身份验证的攻击者可以将特制数据传递给应用程序，并在目标系统上执行任意shell命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hitachi and NEC Corporation Hitachi Virtual File Platform and NEC Storage M Series NAS Gateway which uses Hitachi Virtual File Platform 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) -

II. Public POCs for CVE-2021-20740

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III. Intelligence Information for CVE-2021-20740

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Vendor Advisories for CVE-2021-20740 (1)

Other References for CVE-2021-20740 (2)

V. Comments for CVE-2021-20740

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