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Advisories

maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification

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severity
critical
date
Affecting

  • kubernetes-client >= 0.17.0, < 0.32.0

CWE
  • CWE-295 Improper Certificate Validation
CVSS
9.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Siyang Wu
Description
maclof kubernetes-client 0.17.0 before 0.32.0 disables TLS certificate verification in parseKubeconfig() and parseKubeconfigFile() when a kubeconfig lacks certificate-authority-data, ignoring insecure-skip-tls-verify. On-path attackers can impersonate the Kubernetes API server to capture Bearer tokens or Basic credentials and tamper with WebSocket or REST API traffic.

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