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Message #62557
[Bug 1673569] Re: Failed notification payload is dumped in logs with auth secrets (CVE-2017-7214)
Reviewed: https://review.openstack.org/448610
Committed: https://git.openstack.org/cgit/openstack/ossa/commit/?id=c54ed705df6588194d134abe1762aae5e0e5a39b
Submitter: Jenkins
Branch: master
commit c54ed705df6588194d134abe1762aae5e0e5a39b
Author: Jeremy Stanley <fungi@xxxxxxxxxxx>
Date: Wed Mar 22 14:23:58 2017 +0000
OSSA-2017-002 (CVE-2017-7214)
Nova logs sensitive context from notification exceptions
Change-Id: Iec1deae6bbe7fc73045c2abf9b3d44bafa86acc0
Closes-Bug: #1673569
** Changed in: ossa
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1673569
Title:
Failed notification payload is dumped in logs with auth secrets
(CVE-2017-7214)
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) mitaka series:
Fix Released
Status in OpenStack Compute (nova) newton series:
Fix Released
Status in OpenStack Compute (nova) ocata series:
Fix Released
Status in OpenStack Security Advisory:
Fix Released
Bug description:
Noticed here:
http://logs.openstack.org/08/445308/3/check/gate-tempest-dsvm-py35
-ubuntu-
xenial/7bf0d72/logs/screen-n-api.txt.gz#_2017-03-16_05_31_09_399
I noticed this while investigating public nova bug 1673375, but it
looks like that bug is caused by a ValueError coming from the
oslo.messaging notification code, related to a circular reference in
the json blob:
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging Traceback (most recent call last):
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_messaging/notify/messaging.py", line 70, in notify
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging retry=retry)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_messaging/transport.py", line 104, in _send_notification
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging retry=retry)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 509, in send_notification
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging envelope=(version == 2.0), notify=True, retry=retry)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 457, in _send
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging msg = rpc_common.serialize_msg(msg)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_messaging/_drivers/common.py", line 293, in serialize_msg
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging _MESSAGE_KEY: jsonutils.dumps(raw_msg)}
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/local/lib/python3.5/dist-packages/oslo_serialization/jsonutils.py", line 190, in dumps
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging return json.dumps(obj, default=default, **kwargs)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/lib/python3.5/json/__init__.py", line 237, in dumps
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging **kw).encode(obj)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/lib/python3.5/json/encoder.py", line 198, in encode
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging chunks = self.iterencode(o, _one_shot=True)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging File "/usr/lib/python3.5/json/encoder.py", line 256, in iterencode
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging return _iterencode(o, 0)
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging ValueError: Circular reference detected
2017-03-16 05:31:09.399 23355 ERROR oslo_messaging.notify.messaging
The security issue here is that the notification payload that's logged
has all kinds of auth secrets in it, like tokens and passwords.
From logstash it looks like this is only hitting master (pike) right
now.
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