The XenAPI backend in OpenStack Compute (Nova) Folsom, Grizzly, and Havana before 2013.2 does not properly apply security groups (1) when resizing an image or (2) during live migration, which allows remote attackers to bypass intended restrictions.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0366 advisory.

    OpenStack Compute (nova) launches and schedules large networks of virtual     machines, creating a redundant and scalable cloud computing platform.
    Compute provides the software, control panels, and APIs required to     orchestrate a cloud, including running virtual machine instances, managing     networks, and controlling access through users and projects.

    A flaw was found in the way the libvirt driver handled short-lived disk     back-up files on Compute nodes. An authenticated attacker could use this     flaw to create a large number of such files, exhausting all available space     on Compute node disks, and potentially causing a denial of service.
    Note that only Compute setups using the libvirt driver were affected.
    (CVE-2013-7048)

    It was discovered that the libvirt driver did not properly handle live     migration of virtual machines. An authenticated attacker could use this     flaw to gain access to a snapshot of a migrated virtual machine. Note that     only setups using KVM live block migration were affected. (CVE-2013-7130)

    It was found that OpenStack Compute did not properly reapply existing     security groups after migrating or resizing a virtual machine. This could     cause virtual machine instances to be unintentionally exposed on the     network. Note that only setups using the XenAPI back end were affected.
    (CVE-2013-4497)

    Red Hat would like to thank the OpenStack Project for reporting     CVE-2013-7130. Upstream acknowledges Loganathan Parthipan as the original     reporter of CVE-2013-7130.

    This update also fixes the following bug:

    * Prior to this update, the cache mechanism did not consider existing     network interfaces when building the nework list. After any change in the     network interfaces, only the interface modified last was shown when listing     or getting the details of an instance. With this update, the cache     mechanism considers all existing instances when it is being refreshed.
    (BZ#1038239)

    All openstack-nova 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.

Update to stable/grizzly release 2013.1.5

  - Keep XenAPI security groups through migrate and resize -     CVE-2013-4497

    - Secure directory permissions in snapshots -       CVE-2013-7048

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.

Update to stable/havana 2013.2.1 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
234411	RHEL 6 : openstack-nova (RHSA-2014:0366)	Nessus	Red Hat Local Security Checks	high
73314	Fedora 19 : openstack-nova-2013.1.5-1.fc19 (2014-4188)	Nessus	Fedora Local Security Checks	medium
71854	Fedora 20 : openstack-nova-2013.2.1-2.fc20 (2013-23524)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2013-4497

high

Tenable Plugins

high

medium

medium