Privilege escalation in Red Hat Openshift

CVE-2020-35514

An insecure modification flaw in the /etc/kubernetes/kubeconfig file was found in OpenShift. This flaw allows an attacker with access to a running container which mounts /etc/kubernetes or has local access to the node, to copy this kubeconfig file and attempt to add their own node to the OpenShift cluster. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects versions before openshift4/ose-machine-config-operator v4.7.0-202105111858.p0.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-35514: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Red Hat Openshift — versions 4.7.0
  • Openshift/machine-Config-Operator — versions Unspecified

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-35514?
CVE-2020-35514 is a high-severity vulnerability in Red Hat Openshift, classified under Incorrect Privilege Assignment. CVSS score: 7.0/10. Published 2021-06-02.
How severe is CVE-2020-35514?
High severity. CVSS v3 base score is 7.0 out of 10.