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Advisories

Traefik v3.7.13 Authentication Bypass via ssl-passthrough Ingress HTTP Router

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Severity
high
Date
Affecting

  • traefik >= 3.7.13, < 3.7.14

CWE
  • CWE-306 Missing Authentication for Critical Function
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
Description
Traefik v3.7.13 before v3.7.14 contains an access-control bypass in the Kubernetes Ingress NGINX provider, where the HTTP router generated for ssl-passthrough Ingresses on non-TLS entry points never applies the Ingress's access-control annotations. Unauthenticated attackers reaching the HTTP entry point with the Ingress host can access backends protected by auth-type, auth-url, or whitelist-source-range annotations, with nothing logged.

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