In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-managers logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.
Weakness
The product writes sensitive information to a log file.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Kubernetes | Kubernetes | 1.17.0 (including) | 1.17.13 (excluding) |
| Kubernetes | Kubernetes | 1.18.0 (including) | 1.18.10 (excluding) |
| Kubernetes | Kubernetes | 1.19.0 (including) | 1.19.3 (excluding) |
| Red Hat OpenShift Container Platform 4.6 | RedHat | openshift4/ose-hyperkube:v4.6.0-202101090040.p0 | * |
| Red Hat OpenShift Container Platform 4.7 | RedHat | openshift-0:4.7.0-202102060108.p0.git.97095.7271b90.el7 | * |
| Kubernetes | Ubuntu | focal | * |
| Kubernetes | Ubuntu | groovy | * |
| Kubernetes | Ubuntu | hirsute | * |
| Kubernetes | Ubuntu | impish | * |
| Kubernetes | Ubuntu | kinetic | * |
| Kubernetes | Ubuntu | lunar | * |
| Kubernetes | Ubuntu | mantic | * |
| Kubernetes | Ubuntu | oracular | * |
Potential Mitigations
Related Attack Patterns
References
- https://github.com/kubernetes/kubernetes/issues/95624
- https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
- https://security.netapp.com/advisory/ntap-20210122-0006/
- https://github.com/kubernetes/kubernetes/issues/95624
- https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
- https://security.netapp.com/advisory/ntap-20210122-0006/