CVE-2019-1002101

Severity CVSS v4.0:

Pending analysis

Type:

CWE-59 Link Following

Publication date:

01/04/2019

Last modified:

07/11/2023

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.

Impact

Vector 3.x

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

5.80

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:kubernetes:kubernetes::::::::	1.11.0 (including)	1.11.9 (excluding)
cpe:2.3:a:kubernetes:kubernetes::::::::	1.12.0 (including)	1.12.7 (excluding)
cpe:2.3:a:kubernetes:kubernetes::::::::	1.13.0 (including)	1.13.5 (excluding)
cpe:2.3:a:kubernetes:kubernetes:1.14.0:::::::*
cpe:2.3:a:redhat:openshift_container_platform:3.9:::::::*
cpe:2.3:a:redhat:openshift_container_platform:3.10:::::::*
cpe:2.3:a:redhat:openshift_container_platform:3.11:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2019-1002101

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools