CVEvulnerability

CVE-2019-1002101

5.5 MEDIUM Published 2019-04-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-04-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
6.4 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
5.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:P
Weaknesses
CWE-59

Description

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, 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. The untar function can both create and follow symbolic links. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.

Affected configurations

• kubernetes kubernetes (>= 1.11.0 < 1.11.9) • kubernetes kubernetes (>= 1.12.0 < 1.12.7) • kubernetes kubernetes (>= 1.13.0 < 1.13.5) • kubernetes kubernetes 1.14.0 • redhat openshift container platform 3.9 • redhat openshift container platform 3.10 • redhat openshift container platform 3.11

Related

Weakness · CWE (1)

  • CWE-59 Improper Link Resolution Before File Access weakness

References