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CVE-2021-35535— Insufficient Security Control Vulnerability

Quick assessment

Affected
Hitachi Energy Relion 670 Series
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 Energy Relion是瑞士日立能源（Hitachi Energy）公司的用于保护，控制，测量和监视为电力系统。 Hitachi Energy Relion Relion 670/650/SAM600-IO 系列中存在安全漏洞，该漏洞允许攻击者设法访问前端网络端口并导致设备重启序列。此问题影响：Hitachi Energy Relion 670 Series 2.2.2 所有版本；2.2.3.3 之前的 2.2.3 版本。Hitachi Energy Relion 670/650 系列

CVSS 8.1 · High EPSS 0.67% · P50
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I. Basic Information for CVE-2021-35535

Vulnerability Information
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Vulnerability Title
Insufficient Security Control Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Insecure Boot Image vulnerability in Hitachi Energy Relion Relion 670/650/SAM600-IO series allows an attacker who manages to get access to the front network port and to cause a reboot sequences of the device may exploit the vulnerability, where there is a tiny time gap during the booting process where an older version of VxWorks is loaded prior to application firmware booting, could exploit the vulnerability in the older version of VxWorks and cause a denial-of-service on the product. This issue affects: Hitachi Energy Relion 670 Series 2.2.2 all revisions; 2.2.3 versions prior to 2.2.3.3. Hitachi Energy Relion 670/650 Series 2.2.0 all revisions; 2.2.4 all revisions. Hitachi Energy Relion 670/650/SAM600-IO 2.2.1 all revisions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的默认资源初始化
Source: CVE Program / CVE List V5
Vulnerability Title
Hitachi Energy Relion 系列安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hitachi Energy Relion是瑞士日立能源（Hitachi Energy）公司的用于保护，控制，测量和监视为电力系统。 Hitachi Energy Relion Relion 670/650/SAM600-IO 系列中存在安全漏洞，该漏洞允许攻击者设法访问前端网络端口并导致设备重启序列。此问题影响：Hitachi Energy Relion 670 Series 2.2.2 所有版本；2.2.3.3 之前的 2.2.3 版本。Hitachi Energy Relion 670/650 系列
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 Energy Relion 670 Series 2.2.2 all revisions -
Hitachi Energy Relion 670/650 Series 2.2.0 all revisions -
Hitachi Energy Relion 670/650/SAM600-IO 2.2.1 all revisions -

II. Public POCs for CVE-2021-35535

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III. Intelligence Information for CVE-2021-35535

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Other References for CVE-2021-35535 (1)

IV. Related Vulnerabilities

Same product: Relion 670 Series
Same vendor: Hitachi Energy
Same weakness: CWE-1188

V. Comments for CVE-2021-35535

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