yahoo-eng-team team mailing list archive

[Gabriel Assis Bezerra <gabriel.bezerra@xxxxxxxxx>]

Public bug reported:

The way federation is implemented today needs Keystone to run on Apache
and have authentication performed by mod_shib. Therefore, a user trying
to authenticate via saml2, for instance, will have her/his REMOTE_USER
property defined.

The lines below of the method Auth.authenticate [1] makes any user with
REMOTE_USER property in context to be authenticated by "external"
instead of "saml2" even after
contrib.federation.controllers.Auth.federated_authetication having
defined methods=['saml2'] [2].

        # user has been authenticated externally
        if 'REMOTE_USER' in context['environment']:
            external = get_auth_method('external')
            external.authenticate(context, auth_info, auth_context)

There should be a way of telling saml2 from external users in order to
avoid such authentication method collision.

Current version of the mentioned files:
[1] https://github.com/openstack/keystone/blob/01eea87dea766714015a62f5d24f07d2407f9612/keystone/auth/controllers.py#L408
[2] https://github.com/openstack/keystone/blob/a74550e3c47c6a138b4db7f95f89843c59a643bf/keystone/contrib/federation/controllers.py#L242

** Affects: keystone
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to Keystone.
https://bugs.launchpad.net/bugs/1320128

Title:
  Verification for REMOTE_USER on auth.controllers.Auth breaks
  Federation

Status in OpenStack Identity (Keystone):
  New

Bug description:
  The way federation is implemented today needs Keystone to run on
  Apache and have authentication performed by mod_shib. Therefore, a
  user trying to authenticate via saml2, for instance, will have her/his
  REMOTE_USER property defined.

  The lines below of the method Auth.authenticate [1] makes any user
  with REMOTE_USER property in context to be authenticated by "external"
  instead of "saml2" even after
  contrib.federation.controllers.Auth.federated_authetication having
  defined methods=['saml2'] [2].

          # user has been authenticated externally
          if 'REMOTE_USER' in context['environment']:
              external = get_auth_method('external')
              external.authenticate(context, auth_info, auth_context)

  There should be a way of telling saml2 from external users in order to
  avoid such authentication method collision.

  Current version of the mentioned files:
  [1] https://github.com/openstack/keystone/blob/01eea87dea766714015a62f5d24f07d2407f9612/keystone/auth/controllers.py#L408
  [2] https://github.com/openstack/keystone/blob/a74550e3c47c6a138b4db7f95f89843c59a643bf/keystone/contrib/federation/controllers.py#L242

To manage notifications about this bug go to:
https://bugs.launchpad.net/keystone/+bug/1320128/+subscriptions