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Advisories

Traefik v3.7.0 before v3.7.14 Client CA Mix-up via auth-tls-secret Name Collision

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Severity
high
Date
Affecting

  • traefik >= 3.7.0, < 3.7.14

CWE
  • CWE-287 Improper Authentication
CVSS
7.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Credit
scofaild23
Description
Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes Ingress NGINX provider that merges client CAs when auth-tls-secret names collide after dot-to-dash normalization. Attackers holding certificates from another host's CA can access a host requiring its own client CA, while that host's legitimate clients are refused.

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