SARA / Free Tools / CVE / CVE-2019-11249

CVE-2019-11249 — The kubectl cp command allows copying files between containers and the user mach

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 th

CVSS
4.8 MEDIUM
EPSS
2.82% (top 14.00%)
CWE
CWE-61
Published
2019-08-29T00:26:18.429Z
Last modified
2024-09-16T18:19:22.322Z
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
KubernetesKubernetesprior to 1.13.9, prior to 1.14.5, prior to 1.15.2, 1.1, 1.2, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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