Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Openshift Installer | < 0.9.0-master.0.20210125200451-95101da940b0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1920764Issue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1920764Issue TrackingPatchVendor Advisory
FAQ
What is CVE-2021-20198?
CVE-2021-20198 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...
How severe is CVE-2021-20198?
CVE-2021-20198 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-20198?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Openshift Installer.