Bug 1258458 (CVE-2015-5240)

Summary: CVE-2015-5240 openstack-neutron: Firewall rules bypass through port update
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abaron, amuller, aortega, apevec, ayoung, chrisw, dallan, gkotton, gmollett, jjoyce, jschluet, kbasil, lhh, lpeer, markmc, mburns, nyechiel, rbryant, sclewis, security-response-team, slinaber, slong, srevivo, tdecacqu, yeylon
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A race-condition flaw leading to ACL bypass was discovered in OpenStack Networking (neutron). 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.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2015-10-15 23:02:54 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1260495, 1261385, 1261386, 1264272, 1264273, 1264274    
Bug Blocks: 1258461    

Description Adam Mariš 2015-08-31 12:43:01 UTC 
It was reported that a vulnerability was found in Neutron. By changing the device owner of an instance's port right after it is created, an authenticated user may prevent application of firewall rules and so avoid IP anti-spoofing controls. All Neutron setups using the ML2 plugin or a plugin that relies on the security groups AMQP API are affected. All Neutron setups using the ML2 plugin or a plugin that relies on the security groups AMQP API are affected.

Vulnerability affects versions through 2014.2.3 and 2015.1 versions through 2015.1.1

Acknowledgements:

Red Hat would like to thank the OpenStack project for reporting this issue. Upstream acknowledges Kevin Benton from Mirantis as the original reporter.
Comment 10 Martin Prpič 2015-09-09 08:01:28 UTC 
Public via:

http://www.openwall.com/lists/oss-security/2015/09/08/9
Comment 11 Adam Mariš 2015-09-09 08:44:38 UTC 
Created openstack-neutron tracking bugs for this issue:

Affects: openstack-rdo [bug 1261385]
Affects: fedora-all [bug 1261386]
Comment 13 errata-xmlrpc 2015-10-15 16:09:32 UTC 
This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7
  OpenStack 5 for RHEL 6
  OpenStack 7 For RHEL 7
  OpenStack 6 for RHEL 7

Via RHSA-2015:1909 https://rhn.redhat.com/errata/RHSA-2015-1909.html