Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin
    or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by
    changing the device owner of a port to start with network: before the security group rules are applied.
    (CVE-2015-5240)

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2015:1909 advisory.

    OpenStack Networking (neutron) is a pluggable, scalable, and API-driven     system that provisions networking services to virtual machines. Its main     function is to manage connectivity to and from virtual machines.

    A race-condition flaw leading to ACL bypass was discovered in OpenStack     Networking. An authenticated user could change the owner of a     port after it was created but before firewall rules were applied, thus     preventing firewall control checks from occurring. All OpenStack Networking     deployments that used either the ML2 plug-in or a plug-in that relied on the     security groups AMQP API were affected. (CVE-2015-5240)

    Red Hat would like to thank the OpenStack project for reporting this issue.
    Upstream acknowledges Kevin Benton from Mirantis as the original reporter.

    All openstack-neutron users are advised to upgrade to these updated     packages, which contain backported patches to 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 this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
434534	SCA: security update for neutron (GHSA-hhpj-6pj7-wpx5)	Tenable Cloud Security	SCA Checks	medium
434534	SCA: security update for neutron (GHSA-hhpj-6pj7-wpx5)	Tenable Self-Hosted Container Security	SCA Checks	medium
193840	RHEL 6 / 7 : openstack-neutron (RHSA-2015:1909)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2015-5240

medium

Tenable Plugins

medium

medium

medium