CVE-2014-8750

openstack-nova: Nova VMware driver may connect VNC to another tenant's console

Severity Score

6.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in the VMware driver in OpenStack Compute (Nova) before 2014.1.4 and 2014.2 before 2014.2rc1 allows remote authenticated users to access unintended consoles by spawning an instance that triggers the same VNC port to be allocated to two different instances.

Condición de carrera en el driver de VMware en OpenStack Compute (Nova) anterior a 2014.1.4 y 2014.2 anterior a 2014.2rc1, permite a usuarios remotos autenticados acceder a consolas no intencionadas, mediante una instancia que desencadena que el mismo puerto VNC sea asignado a dos instancias diferentes.

A race condition flaw was found in the way the nova VMware driver handled VNC port allocation. An authenticated user could use this flaw to gain unauthorized console access to instances belonging to other tenants by repeatedly spawning new instances. Note that only nova setups using the VMware driver and the VNC proxy service were affected.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-10-13 CVE Reserved
2014-10-15 CVE Published
2024-05-27 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-285: Improper Authorization
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (10)

URL	Tag	Source
http://secunia.com/advisories/60227	Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/10/14/9	Mailing List
http://www.securityfocus.com/bid/70182	Third Party Advisory
https://bugs.launchpad.net/nova/+bug/1357372	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.openstack.org/pipermail/openstack-announce/2014-October/000293.html	2018-11-16
http://rhn.redhat.com/errata/RHSA-2014-1689.html	2018-11-16
http://rhn.redhat.com/errata/RHSA-2014-1781.html	2018-11-16
http://rhn.redhat.com/errata/RHSA-2014-1782.html	2018-11-16
https://access.redhat.com/security/cve/CVE-2014-8750	2014-11-03
https://bugzilla.redhat.com/show_bug.cgi?id=1152346	2014-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				>= 2014.1 < 2014.1.4 Search vendor "Openstack" for product "Nova" and version " >= 2014.1 < 2014.1.4"		-		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				2014.2 Search vendor "Openstack" for product "Nova" and version "2014.2"		milestone1		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				2014.2 Search vendor "Openstack" for product "Nova" and version "2014.2"		milestone2		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				2014.2 Search vendor "Openstack" for product "Nova" and version "2014.2"		milestone3		Affected