Red Hat Security Advisory 2015-0020-01 – Python-keystoneclient is a client library and a command line utility for interacting with the OpenStack Identity API. The OpenStack Identity auth_token middleware component handles the authentication of tokens with keystone. It was found that python-keystoneclient treated all settings in paste.ini files as string types. If the “insecure” option were set to any value in a paste.ini configuration file, it would be evaluated as true, resulting in TLS connections being vulnerable to man-in-the-middle attacks.