CVE Vulnerabilities

CVE-2016-7075

Improper Certificate Validation

Published: Sep 10, 2018 | Modified: Feb 12, 2023
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
7.8 IMPORTANT
AV:N/AC:L/Au:N/C:N/I:C/A:N
RedHat/V3
7.5 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Ubuntu
MEDIUM

It was found that Kubernetes as used by Openshift Enterprise 3 did not correctly validate X.509 client intermediate certificate host name fields. An attacker could use this flaw to bypass authentication requirements by using a specially crafted X.509 certificate.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

Name Vendor Start Version End Version
Kubernetes Kubernetes - (including) - (including)
Kubernetes Ubuntu groovy *
Kubernetes Ubuntu hirsute *
Kubernetes Ubuntu impish *
Kubernetes Ubuntu kinetic *
Kubernetes Ubuntu lunar *
Kubernetes Ubuntu mantic *
Red Hat OpenShift Container Platform 3.2 RedHat atomic-openshift-0:3.2.1.17-1.git.0.6d01b60.el7 *
Red Hat OpenShift Container Platform 3.3 RedHat atomic-openshift-0:3.3.0.35-1.git.0.d7bd9b6.el7 *
Red Hat OpenShift Enterprise 3.1 RedHat atomic-openshift-0:3.1.1.8-1.git.0.d469026.el7aos *

Potential Mitigations

References