CVE intelligence and bounded remediation

CVE-2023-42770 — Redlioncontrols St-Ipm-6350 Firmware security vulnerability

Critical CVSS 10

Red Lion SixTRAK and VersaTRAK Series RTUs with authenticated users enabled (UDR-A) any Sixnet UDR message will meet an authentication challenge over UDP/IP. When the same message is received over TCP/IP the RTU will simply accept the message with no authentication challenge.

Severity
Critical
CVSS
10 (3.1)
Published
2023-11-21
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-288, CWE-306

Affected products

  • redlioncontrols / st-ipm-6350_firmware / 4.9.114
  • redlioncontrols / st-ipm-8460_firmware / 6.0.202
  • redlioncontrols / vt-mipm-135-d_firmware / 4.9.114
  • redlioncontrols / vt-mipm-245-d_firmware / 4.9.114
  • redlioncontrols / vt-ipm2m-213-d_firmware / 4.9.114
  • redlioncontrols / vt-ipm2m-113-d_firmware / 4.9.114

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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