The puppet manifests in the Red Hat openstack-puppet-modules package before 2014.2.13-2 uses a default password of CHANGEME for the pcsd daemon, which allows remote attackers to execute arbitrary shell commands via unspecified vectors.
https://bugzilla.redhat.com/show_bug.cgi?id=1201875
http://www.securityfocus.com/bid/74049
http://rhn.redhat.com/errata/RHSA-2015-0832.html
http://rhn.redhat.com/errata/RHSA-2015-0831.html
http://rhn.redhat.com/errata/RHSA-2015-0830.html