[RHSA-2014:0368-01] Moderate: openstack-keystone security update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: openstack-keystone security update

Advisory ID: RHSA-2014:0368-01

Product: Red Hat OpenStack

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0368.html

Issue date: 2014-04-03

CVE Names: CVE-2013-6391 CVE-2014-2237

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1. Summary:

 

Updated openstack-keystone packages that fix two security issues are now

available for Red Hat Enterprise Linux OpenStack Platform 3.0.

 

The Red Hat Security Response Team has rated this update as having Moderate

security impact. Common Vulnerability Scoring System (CVSS) base scores,

which give detailed severity ratings, are available for each vulnerability

from the CVE links in the References section.

 

2. Relevant releases/architectures:

 

OpenStack 3 - noarch

 

3. Description:

 

The OpenStack Identity service (keystone) authenticates and authorizes

OpenStack users by keeping track of users and their permitted activities.

The Identity service supports multiple forms of authentication including

user name and password credentials, token-based systems, and

AWS-style logins.

 

It was found that the ec2token API in keystone, which is used to generate

EC2-style (Amazon Elastic Compute Cloud) credentials, could generate a

token not scoped to a particular trust when creating a token from a

received trust-scoped token. A remote attacker could use this flaw to

retrieve a token that elevated their privileges to all of the trustor's

roles. Note that only OpenStack Identity setups that have EC2-style

authentication enabled were affected. (CVE-2013-6391)

 

It was found that the the memcache token back end of OpenStack Identity did

not correctly invalidate a revoked trust token, allowing users with revoked

tokens to retain access to services they should no longer be able to

access. Note that only OpenStack Identity setups using the memcache back

end for tokens were affected. (CVE-2014-2237)

 

Red Hat would like to thank Jeremy Stanley of the OpenStack Project for

reporting CVE-2013-6391. Upstream acknowledges Steven Hardy of Red Hat as

the original reporter of CVE-2013-6391.

 

All openstack-keystone users are advised to upgrade to these updated

packages, which correct these issues.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

This update is available via the Red Hat Network. Details on how to

use the Red Hat Network to apply this update are available at

https://access.redhat.com/site/articles/11258

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1039164 - CVE-2013-6391 OpenStack Keystone: trust circumvention through EC2-style tokens

1071434 - CVE-2014-2237 openstack-keystone: trustee token revocation does not work with memcache backend

 

6. Package List:

 

OpenStack 3:

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHOS/SRPMS/openstack-keystone-2013.1.5-2.el6ost.src.rpm

 

noarch:

openstack-keystone-2013.1.5-2.el6ost.noarch.rpm

openstack-keystone-doc-2013.1.5-2.el6ost.noarch.rpm

python-keystone-2013.1.5-2.el6ost.noarch.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2013-6391.html

https://www.redhat.com/security/data/cve/CVE-2014-2237.html

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2014 Red Hat, Inc.

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