Nova network DoS through API filtering

2014.10.29

Credit: Tristan

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2014-3708

CWE: CWE-399

CVSS Base Score: 4/10

Impact Subscore: 2.9/10

Exploitability Subscore: 8/10

Exploit range: Remote

Attack complexity: Low

Authentication: Single time

Confidentiality impact: None

Integrity impact: None

Availability impact: Partial

OpenStack Security Advisory: 2014-038
CVE: CVE-2014-3708
Date: October 28, 2014
Title: Nova network DoS through API filtering
Reporter: Mohammed Naser (Vexxhost)
Products: Nova
Versions: up to 2014.1.3, and 2014.2

Description:
Mohammed Naser from Vexxhost reported a vulnerability in Nova API
filters. By listing active servers using an ip filter, an authenticated
user may overload nova-network or neutron-server process, resulting in a
denial of services. All Nova setups are affected.

Kilo (development branch) fix:
https://review.openstack.org/131460

Juno fix:
https://review.openstack.org/131462

Icehouse fix:
https://review.openstack.org/131461

Notes:
This fix will be included in future 2014.1.4 and 2014.2.1 releases.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3708
https://launchpad.net/bugs/1358583

--&#183;
Tristan Cacqueray
OpenStack Vulnerability Management Team

References:

https://review.openstack.org/131461

https://review.openstack.org/131462

https://review.openstack.org/131460

http://seclists.org/oss-sec/2014/q4/458

See this note in RAW Version

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References:

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