CVE intelligence and bounded remediation

CVE-2021-38474 — Inhandnetworks Ir615 Firmware security vulnerability

Critical CVSS 9.8

InHand Networks IR615 Router's Versions 2.3.0.r4724 and 2.3.0.r4870 have has no account lockout policy configured for the login page of the product. This may allow an attacker to execute a brute-force password attack with no time limitation and without harming the normal operation of the user. This could allow an attacker to gain valid credentials for the product interface.

Severity
Critical
CVSS
9.8 (3.1)
Published
2021-10-19
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-307

Affected products

  • inhandnetworks / ir615_firmware / 2.3.0.r4724
  • inhandnetworks / ir615_firmware / 2.3.0.r4870

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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