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Kubernetes arbitrary file overwrite

Moderate severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Jul 21, 2023

Package

gomod k8s.io/kubernetes (Go)

Affected versions

>= 1.5, < 1.9.6

Patched versions

1.9.6

Description

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

References

Published by the National Vulnerability Database Jun 2, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jul 21, 2023
Last updated Jul 21, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.051%
(21st percentile)

Weaknesses

CVE ID

CVE-2018-1002100

GHSA ID

GHSA-2jq6-ffph-p4h8

Source code

No known source code
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