Red Hat Enterprise Linux 7: RHSA-2015:2650-01 Moderate: Network Spoofing

Red Hat Enterprise Linux OpenStack Platform director provides the facilities for deploying and monitoring a private or public infrastructure-as-a-service (IaaS) cloud based on Red Hat Enterprise Linux OpenStack Platform.
It was discovered that the director's NeutronMetadataProxySharedSecret parameter remained specified at the default value of 'unset'. This value is used by OpenStack Networking to sign instance headers; if unchanged, an attacker knowing the shared secret could use this flaw to spoof OpenStack Networking metadata requests. (CVE-2015-5303)
A flaw was found in the director (openstack-tripleo-heat-templates) where the RabbitMQ credentials defaulted to guest/guest and supplied values in the configuration were not used. As a result, all deployed overclouds used the same credentials (guest/guest). A remote, non-authenticated attacker could use this flaw to access RabbitMQ services in the deployed cloud. (CVE-2015-5329)
The CVE-2015-5303 issue was discovered by Steven Hardy of Red Hat. Red Hat would like to thank Kota Akatsuka of NEC for reporting the CVE-2015-5329 issue.
Additional bug fixes include:
* Previously, hard-coded parameters were passed directly to Orchestration (heat). As a result, the parameters could not be overridden properly. With this update, a custom environment file from the parameters collected is generated and pass as 'parameter_defaults', allowing parameters to be overridden.(BZ#1245737)
* Previously, when scaling out Compute nodes in the Overcloud after an update was performed, the default UpdateIdentifier parameter in the Orchestration stack caused the new node to attempt an update as soon as it was coming up. Because the yum repositories were not configured on the new nodes yet, this caused the update to fail, which in turn caused the scale out to fail. With this update, the client, python-rdomanager-oscplugin, does not clear the UpdateIdentifier parameter on subsequent stack-update attempts (including the scale out) until after the initial update has been completed. As a result, scale-out attempts after the update now succeed.(BZ#1290796)
* Previously, the 'debug' parameter was enabled and hard-coded in the overcloud deployment code, and the user could not disable debugging. With this update, the 'debug' parameter has been removed from default hard-coded parameters in the overcloud deployment code. As a result, the user can now control the debugging level in the environment file used to deploy the overcloud.(BZ#1259084)
* Previously, deployment validation checked all OpenStack Bare Metal (ironic) nodes, including ones in maintenance mode (even though these cannot be deployed), which resulted in false errors and warnings. With this update, nodes in maintenance mode are skipped by the validation step and false errors are no longer produced.(BZ#1261863)
* Previously, the 'tempest-deployer-input.conf' file contained an incorrect stack_owner_role value, which meant that using this file for post-install validation caused Tempest test failures. With this update, the stack_owner_role value generated during deployment has been changed. As a result, fewer Tempest tests will fail during post-install validation. (BZ#1265714)
* Previously, breakpoints were not removed when an update operation failed. If a user ran the "openstack overcloud update" command and it failed, the subsequent stack-update command (for example, "openstack overcloud deploy") could be stuck in the 'IN_PROGRESS' state waiting for the removal of breakpoints. With this update, all existing CLI commands explicitly remove any existing breakpoints when running a stack-update operation, and stack-update operations do not get stuck in the 'IN_PROGRESS' state.(BZ#1267558)
All Red Hat Enterprise Linux OpenStack Platform 7.0 director users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.