Synopsis
The remote Red Hat host is missing one or more security updates for openstack-keystone.
Description
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.
Solution
Update the RHEL openstack-keystone package based on the guidance in RHSA-2014:0368.
Plugin Details
File Name: redhat-RHSA-2014-0368.nasl
Agent: unix
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
Vendor
Vendor Severity: Moderate
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:openstack-keystone, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:openstack-keystone-doc, p-cpe:/a:redhat:enterprise_linux:python-keystone
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: Exploits are available
Patch Publication Date: 4/3/2014
Vulnerability Publication Date: 12/11/2013