CVE Vulnerability

CVE-2022-23652

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.

6.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8 Patch Third Party Advisory
https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm Third Party Advisory
https://github.com/clastix/capsule-proxy/issues/188 Exploit Issue Tracking
Configurations

Configuration 1

cpe:2.3:a:clastix:capsule-proxy:*:*:*:*:*:*:*:*
Information

Published : 2022-02-22 08:15

Updated : 2022-03-01 08:08

NVD link : CVE-2022-23652

Mitre link : CVE-2022-23652

Products Affected
No products.
CWE
CWE-287