During installation of an OpenShift 4 cluster, the openshift-install command line tool creates an auth directory, with kubeconfig and kubeadmin-password files. Both files contain credentials used to authenticate to the OpenShift API server, and are incorrectly assigned word-readable permissions. ose-installer as shipped in Openshift 4.2 is vulnerable.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-19335
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19335
• https://access.redhat.com/errata/RHSA-2020:0463
• https://access.redhat.com/errata/RHSA-2020:0476
• https://access.redhat.com/security/cve/CVE-2019-19335
• https://bugzilla.redhat.com/show_bug.cgi?id=1777209