The memcache token backend in OpenStack Identity (Keystone) 2013.1 through 2.013.1.4, 2013.2 through 2013.2.2, and icehouse before icehouse-3, when issuing a trust token with impersonation enabled, does not include this token in the trustee's token-index-list, which prevents the token from being invalidated by bulk token revocation and allows the trustee to bypass intended access restrictions.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2014:0580 advisory.

    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.

    The openstack-keystone packages have been upgraded to upstream version     2013.2.3, which provides a number of bug fixes over the previous version.
    The following security issue is also fixed with this release:

    It was found that the memcached 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 memcached     back end for tokens were affected. (CVE-2014-2237)

    All openstack-keystone users are advised to upgrade to these updated     packages, which correct this issue.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0368 advisory.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

updated to stable havana 2013.2.3 release

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

updated to stable grizzly 2013.1.5 release

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
210184	RHEL 6 : openstack-keystone (RHSA-2014:0580)	Nessus	Red Hat Local Security Checks	critical
193836	RHEL 6 : openstack-keystone (RHSA-2014:0368)	Nessus	Red Hat Local Security Checks	critical
73601	Fedora 20 : openstack-keystone-2013.2.3-2.fc20 (2014-4903)	Nessus	Fedora Local Security Checks	medium
73353	Fedora 19 : openstack-keystone-2013.1.5-2.fc19 (2014-4210)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2014-2237

critical

Tenable Plugins

critical

critical

medium

medium