CVE-2019-11251 - CVE House

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Status published Medium CVE-2019-11251

kubectl cp allows symlink directory traversal

4.8 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Erik Sjölund

References

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Affected Vendor

Kubernetes

View all reports →

Affected Software

Kubernetes

Vulnerable Versions:

prior to 1.13.11, prior to 1.14.7, prior to 1.15.4, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12

Timeline

Official Publish: February 3rd, 2020

Last Modified: August 4th, 2024

Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.