CVE-2019-11251

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.

Published: Feb 3, 2020
Updated: May 9, 2024
CVE: CVE-2019-11251
GHSA: GHSA-6qfg-8799-r575
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 5.7
AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

CVSS v2:

Severity: Low
Score: 4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N

CWEs:

Affected Software
References

Software	From	Fixed in
kubernetes / kubernetes	1.15.0	1.15.4
kubernetes / kubernetes	1.14.0	1.14.7
kubernetes / kubernetes	1.13.0	1.13.11
kubernetes / kubernetes	1.1-1.12	1.1-1.12.x
github.com/kubernetes/kubernetes/pkg/kubectl/cmd/cp	1.13.10	1.13.11
github.com/kubernetes/kubernetes/pkg/kubectl/cmd/cp	1.14.6	1.14.7
github.com/kubernetes/kubernetes/pkg/kubectl/cmd/cp	1.15.3	1.16.0

Vulnerability Database

289,697

CVE-2019-11251