** Also affects: glance/queens
Importance: Undecided
Status: New
** Changed in: glance/queens
Milestone: None => queens-stable-2
** Changed in: glance/queens
Importance: Undecided => High
** Changed in: glance/queens
Status: New => Triaged
** Changed in: glance/queens
Assignee: (unassigned) => Abhishek Kekane (abhishek-kekane)
** Tags removed: queens-backport-potential
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https://bugs.launchpad.net/bugs/1736336
Title:
Image data stays in backend if image signature verification fails
Status in Glance:
In Progress
Status in Glance queens series:
Triaged
Bug description:
If image signature verification is enabled then while creating the
image if verfication fails then it returns vaild error, deletes image
from the database but image data stays in the bakend forever.
Ideally if image verfication fails then it should delete the data from
the backend as well.
Pre-requisites:
1. Ensure Barbican is enabled
2. Create Keys and Certificate (Reference
https://etherpad.openstack.org/p/mitaka-glance-image-signing-instructions#90)
3. Create Signature (Reference
https://etherpad.openstack.org/p/mitaka-glance-image-signing-instructions#184)
and note down output of 'signature_64'
4. Create context and upload certificate using context (Reference
https://etherpad.openstack.org/p/glance-image-signing-create-context) and note
down output of 'cert_uuid'
Steps to reproduce:
1. Upload Image to Glance, with Signature Metadata
img_signature_certificate_uuid = 'fb67edd2-95ef-404b-9af2-910708c6d9b7'
img_signature_hash_method = 'SHA-256'
img_signature_key_type = 'RSA-PSS'
img_signature =
'ezccBYtJEdj2gOrN09woioHwi2rDVvBsmRI0i+9EYAYdE7E6FV8jzJD9BImcq/m7Dm6yZZPkCUHz+y4HBKeYqK0+otcz921zaeqcKGBvU1t7J9AL0hEgJbWg0RY6RXqDXpsOQrrkrHuna4O+BUOp6sPwb3j2eFYbbsqW6d/obgM='
(different which is noted in Pre-requisites section Point 4 as 'signature_64')
$ glance image-create --property
name=cirrosSignedImage_goodSignature --property is-public=true
--container-format bare --disk-format qcow2 --property
img_signature='abcdBYtJEdj2gOrN09woioHwi2rDVvBsmRI0i+9EYAYdE7E6FV8jzJD9BImcq/m7Dm6yZZPkCUHz+y4HBKeYqK0+otcz921zaeqcKGBvU1t7J9AL0hEgJbWg0RY6RXqDXpsOQrrkrHuna4O+BUOp6sPwb3j2eFYbbsqW6d/obgM='
--property img_signature_certificate_uuid='fb67edd2-95ef-404b-
9af2-910708c6d9b7' --property img_signature_hash_method='SHA-256'
--property img_signature_key_type='RSA-PSS' --file
cirros-0.3.2-source.tar.gz
Note:
'img_signature' starts with 'ezcc...' but in create command I have passed as
'abcd..'
Actual Output:
+--------------------------------+----------------------------------------------------------------------------------+
| Property | Value
|
+--------------------------------+----------------------------------------------------------------------------------+
| checksum | None
|
| container_format | bare
|
| created_at | 2017-12-05T07:04:38Z
|
| disk_format | qcow2
|
| id | 6e8bec71-2176-4bcc-a732-2f76c5ac589f
|
| img_signature |
abcdBYtJEdj2gOrN09woioHwi2rDVvBsmRI0i+9EYAYdE7E6FV8jzJD9BImcq/m7Dm6yZZPkCUHz+y4H
|
| |
BKeYqK0+otcz921zaeqcKGBvU1t7J9AL0hEgJbWg0RY6RXqDXpsOQrrkrHuna4O+BUOp6sPwb3j2eFYb
|
| | bsqW6d/obgM=
|
| img_signature_certificate_uuid | fb67edd2-95ef-404b-9af2-910708c6d9b7
|
| img_signature_hash_method | SHA-256
|
| img_signature_key_type | RSA-PSS
|
| is-public | true
|
| min_disk | 0
|
| min_ram | 0
|
| name | cirrosSignedImage_goodSignature
|
| owner | 4f186fe25c934eeb95186fd0c5afda49
|
| protected | False
|
| size | None
|
| status | queued
|
| tags | []
|
| updated_at | 2017-12-05T07:04:38Z
|
| virtual_size | None
|
| visibility | shared
|
+--------------------------------+----------------------------------------------------------------------------------+
$ 400 Bad Request: Signature verification failed for image
6e8bec71-2176-4bcc-a732-2f76c5ac589f: Signature verification failed (HTTP 400)
Expected Output:
$ 400 Bad Request: Signature verification failed for image
6e8bec71-2176-4bcc-a732-2f76c5ac589f: Signature verification failed (HTTP 400)
NOTE: Image data stays in backend
$ ls -lah /opt/stack/data/glance/images/6e8bec71-2176-4bcc-a732-2f76c5ac589f
total 15M
drwxr-xr-x. 2 centos centos 270 Dec 5 07:04 .
drwxr-xr-x. 5 centos centos 46 Dec 5 04:42 ..
-rw-r--r--. 1 centos centos 420K Dec 5 07:04
6e8bec71-2176-4bcc-a732-2f76c5ac589f
Glance-api logs:
Dec 05 07:04:38 signature-test.rdocloud devstack@g-api.service[25628]: ERROR
glance.api.v2.image_data [None req-b81d5e9c-8d5c-4b48-b7c8-efe546c3aa97 demo
admin] Signature verification failed for image
6e8bec71-2176-4bcc-a732-2f76c5ac589f: Signature verification failed:
SignatureVerificationError: Signature verification failed
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