CVE-2022-23652
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductClastix Capsule-proxy
PublishedFeb 22, 2022
First seenFeb 22, 2022
Weakness typeCWE-287Improper authentication
How to fix
Update
- clastix capsule-proxy0.2.1 or later
- github.com/clastix/capsule-proxy0.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| clastix capsule-proxy | v < 0.2.1 | 0.2.1 |
| github.com/clastix/capsule-proxyGo | v < 0.2.1 | 0.2.1 |
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