Bug 1771359 (CVE-2019-14806)

Summary:	CVE-2019-14806 python-werkzeug: insufficient debugger PIN randomness vulnerability
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	apevec, aurelien, bbuckingham, bcl, bcourt, bdettelb, bkearney, btotty, danielmyoung, hhudgeon, hvyas, ian, jjoyce, jschluet, karlthered, lhh, lpeer, lzap, mburns, mmccune, python-sig, rchan, relrod, rjerrido, sclewis, sisharma, slinaber, tomckay
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-werkzeug 0.15.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-25 09:55:35 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:	1771361, 1771362, 1771832, 1771833, 1771834, 1773398
Bug Blocks:	1771360

Description Dhananjay Arunesh 2019-11-12 09:07:55 UTC

A vulnerability was found in Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN randomness because Docker containers share the same machine id.

Reference:
https://github.com/pallets/werkzeug/commit/00bc43b1672e662e5e3b8cecd79e67fc968fa246
https://github.com/pallets/werkzeug/blob/7fef41b120327d3912fbe12fb64f1951496fcf3e/src/werkzeug/debug/__init__.py#L168
https://palletsprojects.com/blog/werkzeug-0-15-3-released/

Comment 1 Dhananjay Arunesh 2019-11-12 09:08:30 UTC

Created python-werkzeug tracking bugs for this issue:

Affects: epel-6 [bug 1771362]
Affects: fedora-all [bug 1771361]

Comment 2 Summer Long 2019-11-13 06:00:22 UTC

Created python-werkzeug tracking bugs for this issue:

Affects: openstack-rdo [bug 1771832]

Comment 4 Summer Long 2019-11-13 06:01:21 UTC

External References:

https://palletsprojects.com/blog/werkzeug-0-15-3-released/

Comment 10 Yadnyawalk Tale 2020-02-24 14:11:03 UTC

Statement:

While Red Hat Quay contains a vulnerable version of python-werkzeug in the quay container image, use of the debug feature is not recommended in any upstream or downstream documentation. A user of Red Hat Quay would have to enable python-werkzeug debugging before Red Hat Quay became vulnerable.

This issue did not affect the versions of python-werkzeug as shipped with Red Hat Update Infrastructure as they did not include support for PIN based authentication. The same is true for the versions of python-werkzeug as shipped with Red Hat Enterprise Linux 8.

Red Hat Satellite ships vulnerable python-werkzeug, however, it is not affected because it uses python-werkzeug as a dependency of python-flask required by Crane component and therefore package does not get invoked directly.