Kubernetes
CVE-2022-23652
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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 include: Clastix Capsule-Proxy. Version information: prior to 0.2.1.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
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External POC / Exploit Code
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