CVE Vulnerability

CVE-2022-46167

Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to version 0.1.3, a ServiceAccount deployed in a Tenant Namespace, when granted with `PATCH` capabilities on its own Namespace, is able to edit it and remove the Owner Reference, breaking the reconciliation of the Capsule Operator and removing all the enforcement like Pod Security annotations, Network Policies, Limit Range and Resource Quota items. An attacker could detach the Namespace from a Tenant that is forbidding starting privileged Pods using the Pod Security labels by removing the OwnerReference, removing the enforcement labels, and being able to start privileged containers that would be able to start a generic Kubernetes privilege escalation. Patches have been released for version 0.1.3. No known workarounds are available.

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/clastix/capsule/security/advisories/GHSA-x45c-cvp8-q4fm Third Party Advisory
https://github.com/clastix/capsule/commit/1df430e71be8c4778c82eca3459978ad7d0b4b7b Patch Third Party Advisory
https://github.com/clastix/capsule/commit/75525ac19254b0c5111e34d7985e2be7bc8b1ac1 Patch Third Party Advisory
https://github.com/clastix/capsule/releases/tag/v0.1.3 Patch Release Notes
Configurations

Configuration 1

cpe:2.3:a:clastix:capsule:*:*:*:*:*:*:*:*
Information

Published : 2022-12-02 07:15

Updated : 2022-12-06 12:31

NVD link : CVE-2022-46167

Mitre link : CVE-2022-46167

Products Affected
No products.
CWE
CWE-863