CVE-2022-23652

HIGH

Clastix Capsule-proxy < 0.2.1 - Authentication Bypass

Title source: rule
STIX 2.1

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.

References (3)

Core 3
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/clastix/capsule-proxy/issues/188

Scores

CVSS v3 8.8
EPSS 0.0039
EPSS Percentile 59.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-287
Status published
Products (2)
clastix/capsule-proxy < 0.2.1
clastix/capsule-proxy 0 - 0.2.1Go
Published Feb 22, 2022
Tracked Since Feb 18, 2026