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prevent input source changes without use role on source cred

To update an input source, the user must have admin access
to the target credential and at least use role on the source
credential.
This commit is contained in:
Jake McDermott 2019-03-27 14:18:26 -04:00
parent 8c107a5fa8
commit 7ca92e4c1e
No known key found for this signature in database
GPG Key ID: 9A6F084352C3A0B7
2 changed files with 55 additions and 3 deletions

View File

@ -1202,7 +1202,10 @@ class CredentialInputSourceAccess(BaseAccess):
if self.can_add(data) is False: if self.can_add(data) is False:
return False return False
return self.user in obj.target_credential.admin_role return (
self.user in obj.target_credential.admin_role and
self.user in obj.source_credential.use_role
)
@check_superuser @check_superuser
def can_delete(self, obj): def can_delete(self, obj):

View File

@ -186,12 +186,18 @@ def test_input_source_detail_rbac(get, post, patch, delete, admin, alice,
assert response.status_code == 200 assert response.status_code == 200
assert response.data['count'] == 1 assert response.data['count'] == 1
# alice can't change or delete the input source because she can't change the target cred # alice can't change or delete the input source because she can't change
# the target cred and she can't use the source cred
assert patch(url, {'input_field_name': 'vault_id'}, alice).status_code == 403 assert patch(url, {'input_field_name': 'vault_id'}, alice).status_code == 403
assert delete(url, alice).status_code == 403 assert delete(url, alice).status_code == 403
# alice can admin the target cred, so she can change the input field name # alice still can't change the input source because she she can't use the
# source cred
vault_credential.admin_role.members.add(alice) vault_credential.admin_role.members.add(alice)
assert patch(url, {'input_field_name': 'vault_id'}, alice).status_code == 403
# alice can now admin the target cred and use the source cred, so she can
# change the input field name
external_credential.use_role.members.add(alice) external_credential.use_role.members.add(alice)
assert patch(url, {'input_field_name': 'vault_id'}, alice).status_code == 200 assert patch(url, {'input_field_name': 'vault_id'}, alice).status_code == 200
assert CredentialInputSource.objects.first().input_field_name == 'vault_id' assert CredentialInputSource.objects.first().input_field_name == 'vault_id'
@ -257,6 +263,10 @@ def test_input_source_rbac_swap_target_credential(get, post, put, patch, admin,
assert response.status_code == 201 assert response.status_code == 201
url = response.data['url'] url = response.data['url']
# alice starts with use permission on the source credential
# alice starts with no permissions on the target credential
external_credential.admin_role.members.add(alice)
# alice can't change target cred because she can't admin either one # alice can't change target cred because she can't admin either one
assert patch(url, { assert patch(url, {
'target_credential': machine_credential.pk, 'target_credential': machine_credential.pk,
@ -277,6 +287,45 @@ def test_input_source_rbac_swap_target_credential(get, post, put, patch, admin,
}, alice).status_code == 200 }, alice).status_code == 200
@pytest.mark.django_db
def test_input_source_rbac_change_metadata(get, post, put, patch, admin, alice,
machine_credential, external_credential):
# To change an input source, a user must have admin permissions on the
# target credential and use permissions on the source credential.
list_url = reverse(
'api:credential_input_source_list',
kwargs={'version': 'v2'}
)
params = {
'target_credential': machine_credential.pk,
'source_credential': external_credential.pk,
'input_field_name': 'password',
'metadata': {'key': 'some_key'},
}
response = post(list_url, params, admin)
assert response.status_code == 201
url = response.data['url']
# alice can't change input source metadata because she isn't an admin of the
# target credential and doesn't have use permission on the source credential
assert patch(url, {
'metadata': {'key': 'some_other_key'}
}, alice).status_code == 403
# alice still can't change input source metadata because she doesn't have
# use permission on the source credential.
machine_credential.admin_role.members.add(alice)
assert patch(url, {
'metadata': {'key': 'some_other_key'}
}, alice).status_code == 403
external_credential.use_role.members.add(alice)
assert patch(url, {
'metadata': {'key': 'some_other_key'}
}, alice).status_code == 200
@pytest.mark.django_db @pytest.mark.django_db
def test_create_credential_input_source_with_non_external_source_returns_400(post, admin, credential, vault_credential): def test_create_credential_input_source_with_non_external_source_returns_400(post, admin, credential, vault_credential):
list_url = reverse( list_url = reverse(