CVE-2021-20198 describes a critical flaw in OpenShift Installer versions prior to v0.9.0-master.0.20210125200451-95101da940b0, affecting OpenShift Container Platform 4 clusters during installation. This vulnerability allows remote, unauthenticated attackers to execute arbitrary commands within running containers on bootstrap nodes by exploiting anonymous authentication on kubelet port 10250. With a CVSS score of 8.1 (HIGH), the attack vector is network-based with high impact on confidentiality, integrity, and availability, but requires high attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.9.0-master.0.20210125200451-95101da940b0CPE matchmatch criteria | cpe:2.3:a:redhat:openshift_installer:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.