OpenStack Neutron before 2014.2.4 and 2014.1 before 2014.1.2 allows remote authenticated users to set admin network attributes to default values via unspecified vectors.
https://bugs.launchpad.net/neutron/+bug/1357379
http://www.ubuntu.com/usn/USN-2408-1
http://www.openwall.com/lists/oss-security/2014/09/15/5
http://secunia.com/advisories/62299
http://rhn.redhat.com/errata/RHSA-2014-1786.html