VULNERABILITY INTELLIGENCE

CVE-2019-11251

CVSS score4.8 MEDIUM

EPSS probability2.62%

CISA KEVNot currently listed

Published2020-02-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

Description

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.

Weakness classification

jordan@liggitt.net: CWE-61
nvd@nist.gov: CWE-59

Primary references

jordan@liggitt.net — Third Party Advisory
jordan@liggitt.net — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory