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Red Hat OpenShift: CVE-2020-8554: kubernetes: MITM using LoadBalancer or ExternalIPs

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Red Hat OpenShift: CVE-2020-8554: kubernetes: MITM using LoadBalancer or ExternalIPs

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
01/21/2021
Created
01/22/2021
Added
01/21/2021
Modified
11/10/2021

Description

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.

Solution(s)

  • linuxrpm-upgrade-atomic-openshift

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