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Red Hat 3.0, 4.0 RHSA-2014:0994-01 Important: Keystone Issues

red hat
Calendar Grey July 31, 2014
Scroller Redhat
Newly released openstack-keystone updates for Red Hat Enterprise Linux have been issued to resolve two severe security vulnerabilities.
Updated openstack-keystone packages that fix two security issues are now available for Red Hat Enterprise Linux OpenStack Platform 3.0 and 4.0

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/articles/11258

Summary

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.
A flaw was found in keystone's chained delegation. A trustee able to create a delegation from a trust or an OAuth token could misuse identity impersonation to bypass the enforced scope, possibly allowing them to obtain elevated privileges to the trustor's projects and roles. (CVE-2014-3476)
A flaw was found in the way keystone handled trusts. A trustee could use an out-of-scope project ID to gain unauthorized access to a project if the trustor had the required roles for that requested project. (CVE-2014-3520)
Red Hat would like to thank the OpenStack project for reporting CVE-2014-3520; upstream acknowledges Jamie Lennox of Red Hat as the original reporter. The CVE-2014-3476 issue was discovered by Steven Hardy of Red Hat.
All openstack-keystone users are advised to upgrade to these updated packages, which correct these issues.

Topics%20covered

Topics Covered

security advisory security update Red Hat privilege escalation important OpenStack keystone

References

https://access.redhat.com/security/cve/CVE-2014-3476 https://access.redhat.com/security/cve/CVE-2014-3520 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux OpenStack Platform 3.0:
Source: openstack-keystone-2013.1.5-3.el6ost.src.rpm
noarch: openstack-keystone-2013.1.5-3.el6ost.noarch.rpm openstack-keystone-doc-2013.1.5-3.el6ost.noarch.rpm python-keystone-2013.1.5-3.el6ost.noarch.rpm
Red Hat Enterprise Linux OpenStack Platform 4.0:
Source: openstack-keystone-2013.2.3-7.el6ost.src.rpm
noarch: openstack-keystone-2013.2.3-7.el6ost.noarch.rpm openstack-keystone-doc-2013.2.3-7.el6ost.noarch.rpm python-keystone-2013.2.3-7.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:0994-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0994.html
Issue date: 2014-07-31

Topic

Updated openstack-keystone packages that fix two security issues are nowavailable for Red Hat Enterprise Linux OpenStack Platform 3.0 and 4.0.The Red Hat Security Response Team has rated this update as havingImportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat privilege escalation important OpenStack keystone

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 3.0 - noarch

Red Hat Enterprise Linux OpenStack Platform 4.0 - noarch

Bugs Fixed

1104524 - CVE-2014-3476 openstack-keystone: privilege escalation through trust chained delegation

1112668 - CVE-2014-3520 openstack-keystone: Keystone V2 trusts privilege escalation through user supplied project id

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