6.5
MEDIUM
CVE-2017-16239
OpenStack Nova Filter Scheduler Filter Bypass Vulnerability
Description

In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.

INFO

Published Date :

Nov. 14, 2017, 5:29 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-16239 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openstack nova
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-16239.

URL Resource
http://www.securityfocus.com/bid/101950 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0241
https://access.redhat.com/errata/RHSA-2018:0314
https://access.redhat.com/errata/RHSA-2018:0369
https://launchpad.net/bugs/1664931 Issue Tracking
https://security.openstack.org/ossa/OSSA-2017-005.html Vendor Advisory
https://www.debian.org/security/2017/dsa-4056

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-16239 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-16239 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 NVD-CWE-noinfo
  • CVE Modified by [email protected]

    Mar. 01, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:0369 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 15, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:0314 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 05, 2018

    Action Type Old Value New Value
    Changed Description In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.
  • CVE Modified by [email protected]

    Feb. 01, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:0241 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 09, 2017

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2017/dsa-4056 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 04, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://security.openstack.org/ossa/OSSA-2017-005.html No Types Assigned https://security.openstack.org/ossa/OSSA-2017-005.html Vendor Advisory
    Changed Reference Type https://launchpad.net/bugs/1664931 No Types Assigned https://launchpad.net/bugs/1664931 Issue Tracking
    Changed Reference Type http://www.securityfocus.com/bid/101950 No Types Assigned http://www.securityfocus.com/bid/101950 Third Party Advisory, VDB Entry
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:* versions up to (including) 14.0.9 *cpe:2.3:a:openstack:nova:15.0.0:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.1:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.2:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.3:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.4:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.5:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.6:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:15.0.7:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:16.0.0:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:16.0.1:*:*:*:*:*:*:* *cpe:2.3:a:openstack:nova:16.0.2:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 26, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/101950 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-16239 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-16239 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} -0.03%

score

0.46912

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability