CVE-2021-20198
High
Description
A flaw was found in the OpenShift Installer before version v0.9.0-master.0.20210125200451-95101da940b0. During installation of OpenShift Container Platform 4 clusters, bootstrap nodes are provisioned with anonymous authentication enabled on kubelet port 10250. A remote attacker able to reach this port during installation can make unauthenticated `/exec` requests to execute arbitrary commands within running containers. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Redhat Openshift Installer
PublishedFeb 23, 2021
First seenFeb 23, 2021
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- redhat openshift_installer0.9.0-master.0.20210125200451-95101da940b0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat openshift_installer | v < 0.9.0-master.0.20210125200451-95101da940b0 | 0.9.0-master.0.20210125200451-95101da940b0 |
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