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Kubelet vulnerable to bypass of seccomp profile enforcement

Moderate severity GitHub Reviewed Published Jun 16, 2023 to the GitHub Advisory Database • Updated Nov 7, 2023

Package

gomod k8s.io/kubernetes (Go)

Affected versions

< 1.24.14
>= 1.25.0, < 1.25.10
>= 1.26.0, < 1.26.5
>= 1.27.0, < 1.27.2

Patched versions

1.24.14
1.25.10
1.26.5
1.27.2

Description

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.

References

Published by the National Vulnerability Database Jun 16, 2023
Published to the GitHub Advisory Database Jun 16, 2023
Reviewed Jun 16, 2023
Last updated Nov 7, 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
High
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:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.045%
(17th percentile)

Weaknesses

CVE ID

CVE-2023-2431

GHSA ID

GHSA-xc8m-28vv-4pjc

Source code

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