CVE-2021-20198

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.56%
Vendor Advisory redhat.com
Affected: n/a openshift/installer
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1920764 patch vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2021-20198?
CVE-2021-20198 has been scored as a high severity vulnerability.
How to fix CVE-2021-20198?
To fix CVE-2021-20198, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20198 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20198 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20198?
CVE-2021-20198 affects n/a openshift/installer.
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