CVE-2022-23652CWE-287

Privilege escalation using hop-by-hop Connection header

High · published February 22, 2022

CVSS v3.1
8.8
EPSS
1%
Percentile
72.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01397 · 72.2th percentile
Weakness
CWE-287 · Improper Authentication
Published
2022-02-22T19:55Z
EPSS history
Timeline
  • 22 FEB 19:55Z
    Privilege escalation using hop-by-hop Connection header
    cvelistv5