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[Bug 1673569] Re: [OSSA-2017-002] Failed notification payload is dumped in logs with auth secrets (CVE-2017-7214)

 

This bug was fixed in the package nova - 2:14.0.5-0ubuntu1

---------------
nova (2:14.0.5-0ubuntu1) yakkety; urgency=medium

  [Saverio Proto]
  * New upstream point release for OpenStack Newton (LP: #1688557).

  [Corey Bryant]
  * SECURITY UPDATE: Failed notification payload is dumped in logs
    with auth secrets (LP: #1673569).
    - This is included from upstream in the 14.0.5 stable point release.
    - CVE-2017-7214

 -- Corey Bryant <corey.bryant@xxxxxxxxxxxxx>  Mon, 15 May 2017 08:37:32
-0400

** Changed in: nova (Ubuntu Yakkety)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1673569

Title:
  [OSSA-2017-002] Failed notification payload is dumped in logs with
  auth secrets (CVE-2017-7214)

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive mitaka series:
  New
Status in Ubuntu Cloud Archive newton series:
  Fix Committed
Status in Ubuntu Cloud Archive ocata series:
  Fix Released
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
Status in nova package in Ubuntu:
  Fix Released
Status in nova source package in Xenial:
  New
Status in nova source package in Yakkety:
  Fix Released
Status in nova source package in Zesty:
  Fix Released
Status in nova source package in Artful:
  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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