Bug 1420992 (CVE-2017-2622)

Summary:	CVE-2017-2622 openstack-mistral: /var/log/mistral/ is world readable
Product:	[Other] Security Response	Reporter:	Summer Long <slong>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aortega, apevec, ayoung, chrisw, cvsbot-xmlrpc, dmatthew, jjoyce, jschluet, kbasil, lhh, lpeer, markmc, mburns, rbryant, rhos-maint, sbaker, sclewis, security-response-team, shardy, slinaber, srevivo, tdecacqu, tvignaud, zbitter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An accessibility flaw was found in the OpenStack Workflow (mistral) service where a service log directory was improperly made world readable. A malicious system user could exploit this flaw to access sensitive information.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-06-28 23:46:42 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1421000, 1421001, 1422267
Bug Blocks:	1422332

Description Summer Long 2017-02-10 05:03:14 UTC

The directory /var/log/mistral is world readable and contains log files that are readable, which can result in the exposure of sensitive information. The 'other readable/execute' bits need to be removed from the /var/log/mistral directory:

[stack@instack ~]$ ls -la /var/log/mistral
total 2288
drwxr-xr-x.  2 mistral mistral    4096 Feb  9 01:07 .
drwxr-xr-x. 31 root    root       4096 Feb  9 01:02 ..
-rw-r--r--.  1 mistral mistral  112623 Feb  9 20:09 api.log
-rw-r--r--.  1 mistral mistral 1829883 Feb  9 20:09 engine.log
-rw-r--r--.  1 mistral mistral  383889 Feb  9 20:09 executor.log

Comment 1 Summer Long 2017-02-10 05:07:20 UTC

Acknowledgments:

Name: Hans Feldt (Ericsson)

Comment 4 Summer Long 2017-02-14 22:30:31 UTC

Created openstack-mistral tracking bugs for this issue:

Affects: openstack-rdo [bug 1422267]

Comment 5 errata-xmlrpc 2017-06-28 14:57:42 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:1584 https://access.redhat.com/errata/RHSA-2017:1584

Comment 6 Dougal Matthews 2019-11-21 10:54:45 UTC

While this has been resolved in Mistral, I noticed that when debug logging is enabled heatclient does log the passwords. They then show up in the Mistral logs. Is this something we need to look into or can we ignore DEBUG messages?

Comment 7 Dougal Matthews 2019-11-21 12:39:05 UTC

(In reply to Dougal Matthews from comment #6)
> While this has been resolved in Mistral, I noticed that when debug logging
> is enabled heatclient does log the passwords. They then show up in the
> Mistral logs. Is this something we need to look into or can we ignore DEBUG
> messages?

Apologise. This wording is a bit confusing. I realise this CVE is specific to the logs being world readable. I have put in some time to mask the passwords in Mistral logs, so they are now replaced with *** in the logs. This work has merged upstream in master, train, stein and rocky. This seems to be working well with the exception of logging done by heatclient which does a DEBUG log of the passwords. Is this something we can consider okay or should we look into it? I believe we don't recommend running with debug logging normally.

Comment 8 Summer Long 2019-11-24 23:34:48 UTC

Hi Dougal, this is the older CVE. The one matching the bug: https://bugs.launchpad.net/tripleo/+bug/1850843
is here: https://bugzilla.redhat.com/show_bug.cgi?id=1768731
DEBUG logging will only be a hardening issue if the regression to world-readable has been fixed.
thanks, Summer

Comment 9 Dougal Matthews 2019-11-28 08:31:41 UTC

Thanks, sorry, I got confused. I'll move to the correct BZ.