CVE Vulnerabilities

CVE-2020-8554

Published: Jan 21, 2021 | Modified: Nov 07, 2023
CVSS 3.x
5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 2.x
6 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
6.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Ubuntu
MEDIUM

Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.

Affected Software

Name Vendor Start Version End Version
Kubernetes Kubernetes * *
Red Hat OpenShift Container Platform 3.11 RedHat atomic-openshift-0:3.11.374-1.git.0.ebd3ee9.el7 *
Kubernetes Ubuntu groovy *
Kubernetes Ubuntu hirsute *
Kubernetes Ubuntu impish *
Kubernetes Ubuntu kinetic *
Kubernetes Ubuntu lunar *
Kubernetes Ubuntu mantic *

References