CVE intelligence and bounded remediation

CVE-2021-35530 — Hitachienergy Txpert Hub Coretec 4 Firmware security vulnerability

High CVSS 7.2

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.

Severity
High
CVSS
7.2 (2.0)
Published
2022-06-07
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-288

Affected products

  • hitachienergy / txpert_hub_coretec_4_firmware / 2.0.0
  • hitachienergy / txpert_hub_coretec_4_firmware / 2.0.1
  • hitachienergy / txpert_hub_coretec_4_firmware / 2.1.0
  • hitachienergy / txpert_hub_coretec_4_firmware / 2.1.1
  • hitachienergy / txpert_hub_coretec_4_firmware / 2.1.2
  • hitachienergy / txpert_hub_coretec_4_firmware / 2.1.3

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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