CVE-2018-1002105
Critical
Description
In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.
SeverityCritical
CVSS9.8
Exploit probability100. percentile87%
Product
Kubernetes
PublishedDec 5, 2018
First seenDec 5, 2018
How to fix
Update
- github.com/kubernetes/kubernetes1.10.11, 1.11.5, 1.12.3 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2018:3549
- access.redhat.com/errata/RHSA-2018:3752
- access.redhat.com/errata/RHSA-2018:3624
- access.redhat.com/errata/RHSA-2018:3742
- access.redhat.com/errata/RHSA-2018:3754
- access.redhat.com/errata/RHSA-2018:3537
- access.redhat.com/errata/RHSA-2018:3598
- access.redhat.com/errata/RHSA-2018:3551
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kubernetes kubernetes | 1.0.0 ≤ v ≤ 1.9.11, 1.10.0 ≤ v ≤ 1.10.10, 1.11.0 ≤ v ≤ 1.11.4, 1.12.0 ≤ v ≤ 1.12.2, 1.9.12 | — |
| redhat openshift_container_platform | 3.2, 3.3, 3.4, 3.5, 3.6, 3.8, 3.10, 3.11 | — |
| netapp trident | No range specified | — |
| github.com/kubernetes/kubernetesGo | v < 1.10.11, 1.11.0 ≤ v < 1.11.5, 1.12.0 ≤ v < 1.12.3 | 1.10.11, 1.11.5, 1.12.3 |
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