The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| k8s.io/kubernetes(Go) | 1.13.10 | 1.13.11 | N/A |
| k8s.io/kubernetes(Go) | 1.14.6 | 1.14.7 | N/A |
| k8s.io/kubernetes(Go) | 1.15.3 | 1.16.0 | N/A |
CVSS Metrics