CVE-2019-11251

Severity CVSS v4.0:

Pending analysis

Type:

CWE-59 Link Following

Publication date:

03/02/2020

Last modified:

06/02/2020

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

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.70 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

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

Base Score 3.x

5.70

Severity 3.x

MEDIUM

Vector 2.0

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

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

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

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:kubernetes:kubernetes::::::::	1.13.0 (including)	1.13.11 (excluding)
cpe:2.3:a:kubernetes:kubernetes::::::::	1.14.0 (including)	1.14.7 (excluding)
cpe:2.3:a:kubernetes:kubernetes::::::::	1.15.0 (including)	1.15.4 (excluding)
cpe:2.3:a:kubernetes:kubernetes:1.1-1.12:::::::*

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

CVE-2019-11251

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools