high8.8
CVE-2022-23652
capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Clastix | Capsule-Proxy | before 0.2.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8
- https://github.com/clastix/capsule-proxy/issues/188
- https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm
- https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8
- https://github.com/clastix/capsule-proxy/issues/188
- https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm