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CVE-2021-35530— User authentication bypass in TXpert Hub CoreTec 4

Quick assessment

Affected
Hitachi Energy TXpert Hub CoreTec 4 version
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 TXpert Hub CoreTec 4是日本日立制作所（Hitachi）公司的一种数字变压器监控和诊断设备。 Hitachi Energy TXpert Hub CoreTec 4存在安全漏洞，该漏洞源于应用程序身份验证和授权机制中的会话标识符令牌验证存在问题，未经授权的参与者能够更改现有用户密码， 并利用该漏洞通过登录机制进一步获得对系统的授权访问。

CVSS 6.0 · Medium EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2021-35530

Vulnerability Information
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Vulnerability Title
User authentication bypass in TXpert Hub CoreTec 4
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the application authentication and authorization mechanism in Hitachi Energy's TXpert Hub CoreTec 4, that depends on a token validation of the session identifier, allows an unauthorized modified message to be executed in the server enabling an unauthorized actor to change an existing user password, and further gain authorized access into the system via login mechanism. This issue affects: Hitachi Energy TXpert Hub CoreTec 4 version 2.0.0 2.1.0; 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.2.0; 2.2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Hitachi Energy TXpert Hub CoreTec 4 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hitachi Energy TXpert Hub CoreTec 4是日本日立制作所（Hitachi）公司的一种数字变压器监控和诊断设备。 Hitachi Energy TXpert Hub CoreTec 4存在安全漏洞，该漏洞源于应用程序身份验证和授权机制中的会话标识符令牌验证存在问题，未经授权的参与者能够更改现有用户密码， 并利用该漏洞通过登录机制进一步获得对系统的授权访问。
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 TXpert Hub CoreTec 4 version 2.0.0 -

II. Public POCs for CVE-2021-35530

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III. Intelligence Information for CVE-2021-35530

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Other References for CVE-2021-35530 (1)

Same Patch Batch · Hitachi Energy · 2022-06-07 · 3 CVEs total

CVE-2021-35532 Firmware upload verification bypass in TXpert Hub CoreTec 4
CVE-2021-35531 Remote Code Execution in TXpert Hub CoreTec 4

IV. Related Vulnerabilities

Same product: TXpert Hub CoreTec 4 version
Same vendor: Hitachi Energy
Same weakness: CWE-288

V. Comments for CVE-2021-35530

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