Bug 1209527 – CVE-2015-1852 OpenStack keystonemiddleware/keystoneclient: S3Token TLS cert verification option not honored

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Bug 1209527 - (CVE-2015-1852) CVE-2015-1852 OpenStack keystonemiddleware/keystoneclient: S3Token TLS cert verification option not honored

Summary:	CVE-2015-1852 OpenStack keystonemiddleware/keystoneclient: S3Token TLS cert v...

Status:	CLOSED ERRATA

Aliases:	CVE-2015-1852

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20150415,repor...
Keywords:	Security

Depends On:	1229487 1246330 1246331 1248326 1248327 1256638
Blocks:	1209529
	Show dependency tree / graph

Reported:	2015-04-07 10:59 EDT by Vasyl Kaigorodov
Modified:	2016-04-26 09:45 EDT (History)
CC List:	18 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	It was discovered that some items in the S3Token paste configuration as used by python-keystonemiddleware (formerly python-keystoneclient) were incorrectly evaluated as strings, an issue similar to CVE-2014-7144. If the "insecure" option were set to "false", the option would be evaluated as true, resulting in TLS connections being vulnerable to man-in-the-middle attacks. Note: the "insecure" option defaults to false, so setups that do not specifically define "insecure=false" are not affected.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-08-25 03:21:40 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
cve-2015-1852-master-keystoneclient.patch (3.23 KB, text/plain) 2015-04-10 06:10 EDT, Vasyl Kaigorodov	no flags	Details
cve-2015-1852-master-keystonemiddleware.patch (3.19 KB, text/plain) 2015-04-10 06:10 EDT, Vasyl Kaigorodov	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Launchpad	1411063	None	None	None	Never
Red Hat Product Errata	RHSA-2015:1677	normal	SHIPPED_LIVE	Moderate: python-keystoneclient and python-keystonemiddlware security update	2015-08-24 20:17:02 EDT
Red Hat Product Errata	RHSA-2015:1685	normal	SHIPPED_LIVE	Moderate: python-keystoneclient security update	2015-08-25 05:44:02 EDT

Groups: None (edit)

Description Vasyl Kaigorodov 2015-04-07 10:59:56 EDT

A vulnerability was discovered in OpenStack:

Title: S3Token TLS cert verification option not honored
Reporter: Brant Knudson (IBM)
Products: keystonemiddleware, python-keystoneclient
Affects: versions up to 1.5.0 (keystonemiddleware),
         versions up to 0.11.2 (python-keystoneclient)

Description:
Brant Knudson from IBM reported a vulnerability in keystonemiddleware
(formerly shipped as python-keystoneclient). When the 'insecure' option
is set in a S3Token paste configuration file its value is effectively
ignored and instead assumed to be true. As a result certificate
verification will be disabled, leaving TLS connections open to MITM
attacks. Note that it's unusual to explicitly add this option and then
set it to false, so the impact of this bug is thought to be limited. All
versions of s3_token middleware with TLS settings configured are
affected by this flaw.

Acknowledgements:

Red Hat would like to thank the OpenStack project for reporting this issue. Upstream acknowledges Brant Knudson from IBM as the original reporter.

Comment 1 Vasyl Kaigorodov 2015-04-10 06:10:18 EDT

Created attachment 1013072 [details]
cve-2015-1852-master-keystoneclient.patch

Comment 2 Vasyl Kaigorodov 2015-04-10 06:10:36 EDT

Created attachment 1013073 [details]
cve-2015-1852-master-keystonemiddleware.patch

Comment 3 Vasyl Kaigorodov 2015-04-10 06:54:15 EDT

Note that it's unusual to explicitly add this option and then
set it to false, so the impact of this bug is thought to be limited.

Comment 5 Fedora Update System 2015-07-18 21:59:08 EDT

python-keystonemiddleware-1.3.2-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Garth Mollett 2015-08-23 23:16:46 EDT

Upstream advisory:

https://security.openstack.org/ossa/OSSA-2015-007.html

Comment 10 errata-xmlrpc 2015-08-24 16:17:40 EDT

This issue has been addressed in the following products:

  OpenStack 6 for RHEL 7

Via RHSA-2015:1677 https://rhn.redhat.com/errata/RHSA-2015-1677.html

Comment 11 errata-xmlrpc 2015-08-25 01:44:11 EDT

This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7
  OpenStack 5 for RHEL 6

Via RHSA-2015:1685 https://rhn.redhat.com/errata/RHSA-2015-1685.html

Comment 12 Garth Mollett 2015-08-25 03:21:10 EDT

Created python-keystoneclient tracking bugs for this issue:

Affects: openstack-rdo [bug 1256638]

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