La demande SAML AssertionConsumerServiceURL est invalide - Auth0, SAML, Kibana

Question

J'essaie d'intégrer le SSO avec Kibana et SAML. J'utilise Auth0. Voici mes paramètres dans les fichiers yml

kibana.yml
elasticsearch.hosts: ["https://localhost:9200"]
xpack.security.enabled: true
elasticsearch.ssl.certificate: D:/Piyusha/Extracted/kibana-7.4.1-windows-x86_64/config/certs/client.cer
elasticsearch.ssl.key: D:/Piyusha/Extracted/kibana-7.4.1-windows-x86_64/config/certs/client.key
elasticsearch.ssl.certificateAuthorities: D:/Piyusha/Extracted/kibana-7.4.1-windows-x86_64/config/certs/client-ca.cer
elasticsearch.ssl.verificationMode: certificate

xpack.security.authc.providers: [saml]
xpack.security.authc.saml.realm: saml1
server.xsrf.whitelist: [/api/security/v1/saml]

elasticsearch.yml

xpack.security.enabled: true

xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: certs/elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: certs/elastic-certificates.p12

xpack.security.http.ssl.enabled: true
xpack.security.http.ssl.keystore.path: certs/elastic-certificates.p12
xpack.security.http.ssl.truststore.path: certs/elastic-certificates.p12
xpack.security.http.ssl.client_authentication: optional

xpack.security.authc.realms.pki.pki1.order: 0

xpack.security.authc.token.enabled: true
xpack.security.authc.realms.saml.saml1:
  order: 2
  idp.metadata.path: saml/dev-zl4z3q20_auth0_com-metadata.xml
  sp.entity_id:  "http://localhost:5601"
  idp.entity_id: "urn:dev-zl4z3q20.auth0.com"
  sp.acs: "http://localhost:5601/api/security/v1/saml"
  sp.logout: "http://localhost:5601/logout"
  attributes.principal: "urn:oid:0.9.2342.19200300.100.1.1"
  attributes.groups: "urn:oid:1.3.6.1.4.1.5923.1.5.1."

Avant d'ajouter les configurations saml, tout fonctionnait parfaitement comme l'authentification, etc. Mais après avoir ajouté les configurations saml, l'url de kibana redirige vers une page d'erreur

https://dev-zl4z3q20.auth0.com/samlp/brGsd0sUh18u1oremCeu58L4FxrExgxf?SAMLRequest=fVJbb9sgGP0riHfb4FtSFKfKkmWLlHVR4%2FRhLxPGuEHC4PLhLO2vn3Pp1ElVXuHcOIfJ%2FbHV6CAdKGsKTEOCkTTC1so8F3hXLoMxvp9OgLc67tis93vzKF96CR4NRAPsclPg3hlmOShghrcSmBdsO%2FuxZnFIWOest8JqjGYA0vnBam4N9K10W%2BkOSsjd47rAe%2B87FkXaCq73FjzLckIj3qkIpOid8q%2FRgUYnQ4wWQwJluD%2BnPhFhYNbyELzp9C15iUnIh6wkFLY9M7qoct%2BgJrDb03FPrZPtXPbZeJ0uj%2B7r8fnYYLRaFPh3mjUiz0iV8CRPBaWjOq5jwZPxuBqleU6qu0aMuEgHOEAvVwY8N77AMaF3ASVBQksaszhlWRzmGf2F0eb6%2Bi%2FKXFq9VVV1AQH7XpabYPNzW2L09L7OAMDXLdjZ3X0c4bYwf28eTz%2FteRJ91P23%2BMMgtFpsrFbiFc20tn%2FmTnIvC9xwDRKjpXUt97e9TyeqDpozlHnHDShpPI6mV9f%2Ff9b0Lw%3D%3D

et donne l'erreur suivante

invalid_request: The SAML Request AssertionConsumerServiceURL is invalid: 'http://localhost:5601/api/security/v1/saml'
TRACKING ID: c682d69fc2f95872f203

Answer 1

L'erreur indique que l'URL ACS envoyée dans la demande SAML ne correspond pas à ce qui est configuré dans Auth0.

Vérifiez que dans les paramètres de l'addon SAML de l'application Auth0, vous avez défini les éléments suivants http://localhost:5601/api/security/v1/saml comme URL de l'ACS.