The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.
References
Link | Resource |
---|---|
https://github.com/kubernetes/kubernetes/pull/76788 | Patch Third Party Advisory |
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/NLs2TGbfPdo | |
https://security.netapp.com/advisory/ntap-20190919-0003/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: kubernetes
Published: 2019-06-21T00:00:00
Updated: 2019-09-19T16:06:08
Reserved: 2019-04-17T00:00:00
Link: CVE-2019-11246
JSON object: View
NVD Information
Status : Modified
Published: 2019-08-29T01:15:11.227
Modified: 2023-11-07T03:02:48.273
Link: CVE-2019-11246
JSON object: View
Redhat Information
No data.