CVE intelligence and bounded remediation

CVE-2019-11334 — Tzumi Klic Lock security vulnerability

Medium CVSS 4.3

An authentication bypass in website post requests in the Tzumi Electronics Klic Lock application 1.0.9 for mobile devices allows attackers to access resources (that are not otherwise accessible without proper authentication) via capture-replay. Physically proximate attackers can use this information to unlock unauthorized Tzumi Electronics Klic Smart Padlock Model 5686 Firmware 6.2.

Severity
Medium
CVSS
4.3 (2.0)
Published
2019-06-11
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-294

Affected products

  • tzumi / klic_lock / 1.0.9
  • tzumi / klic_smart_padlock_model_5686_firmware / 6.2

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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