CVE intelligence and bounded remediation

CVE-2024-23309 — Level1 Wbr-6012 Firmware security vulnerability

Critical CVSS 9

The LevelOne WBR-6012 router with firmware R0.40e6 has an authentication bypass vulnerability in its web application due to reliance on client IP addresses for authentication. Attackers could spoof an IP address to gain unauthorized access without needing a session token.

Severity
Critical
CVSS
9 (3.1)
Published
2024-10-30
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-291

Affected products

  • level1 / wbr-6012_firmware / r0.40e6

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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