Description
capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes. In versions prior to 0.2.1 an attacker with a proper authentication mechanism may use a malicious `Connection` header to start a privilege escalation attack towards the Kubernetes API Server. This vulnerability allows for an exploit of the `cluster-admin` Role bound to `capsule-proxy`. There are no known workarounds for this issue.
Published: 2022-02-22
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-0936 capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes. In versions prior to 0.2.1 an attacker with a proper authentication mechanism may use a malicious `Connection` header to start a privilege escalation attack towards the Kubernetes API Server. This vulnerability allows for an exploit of the `cluster-admin` Role bound to `capsule-proxy`. There are no known workarounds for this issue.
Github GHSA Github GHSA GHSA-9cwv-cppx-mqjm Improper Authentication in Capsule Proxy
History

Tue, 22 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Clastix Capsule-proxy
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-22T18:21:44.645Z

Reserved: 2022-01-19T00:00:00.000Z

Link: CVE-2022-23652

cve-icon Vulnrichment

Updated: 2024-08-03T03:51:45.543Z

cve-icon NVD

Status : Modified

Published: 2022-02-22T20:15:07.763

Modified: 2024-11-21T06:49:01.510

Link: CVE-2022-23652

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses