[Openstack-security] [Bug 1456228] Re: Trusted vm can be powered on untrusted host
Will Auld
will.auld at intel.com
Wed Sep 2 22:41:38 UTC 2015
I concur with Doug. This is not a bug but expected behavior. Another
example to illustrate: Boot a node into the trusted pool. This node is
later compromised while it is running several VMs and afterward
continues to receive newly launched VMs. The attestation is attesting to
the node booting up with known software not that it will remain
uncompromised.
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https://bugs.launchpad.net/bugs/1456228
Title:
Trusted vm can be powered on untrusted host
Status in OpenStack Compute (nova):
Invalid
Status in OpenStack Security Advisory:
Won't Fix
Status in OpenStack Security Notes:
Incomplete
Bug description:
This is related to the trusted compute.
I recently setup trusted compute pool in my company and have observed
that although new trusted vm is not able to be launched from an
untrusted host, but if an trusted vm that have launched earlier on a
trusted host which is compromised later on, that VM can still be
powered on.
1. Exact version of Nova/Openstack:
[root at grunt2 ~]# rpm -qa | grep nova
python-nova-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-network-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-compute-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-conductor-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-cells-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-api-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-console-2014.1.2-100+45c2cbc.fc20.noarch
python-novaclient-2.17.0-2.fc21.noarch
openstack-nova-cert-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-scheduler-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-objectstore-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-common-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-novncproxy-2014.1.2-100+45c2cbc.fc20.noarch
openstack-nova-doc-2014.1.2-100+45c2cbc.fc20.noarch
2. Relevant log files:
this is not a error, don't think logs will help..
3. Reproduce steps:
* create trusted compute pool with only one compute node
* create an trusted VM on that compute node
* compromise the trusted compute node by changing the boot order
* power on the trusted Vm created earlier.
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