CVE intelligence and bounded remediation

CVE-2023-23545 — Missing authentication for critical function exists in T&D Corporation and ESPEC MIC CORP

Medium CVSS 5.3

Missing authentication for critical function exists in T&D Corporation and ESPEC MIC CORP. data logger products, which may allow a remote unauthenticated attacker to alter the product settings without authentication. Affected products and versions are as follows: T&D Corporation data logger products (TR-71W/72W all firmware versions, RTR-5W all firmware versions, WDR-7 all firmware versions, WDR-3 all firmware versions, and WS-2 all firmware versions), and ESPEC MIC CORP. data logger products (RT-12N/RS-12N all firmware versions, RT-22BN all firmware versions, and TEU-12N all firmware versions).

Severity
Medium
CVSS
5.3 (3.1)
Published
2023-05-23
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-306

Affected products

  • tandd / tr-71w_firmware
  • tandd / tr-72w_firmware
  • tandd / rtr-5w_firmware
  • tandd / wdr-7_firmware
  • tandd / wdr-3_firmware
  • tandd / ws-2_firmware

Showing 6 representative product identities from 10 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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