CVE-2022-3294: Kubernetes vulnerable to validation bypass
8.8
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.63648%
CWE
Published
3/1/2023
Updated
5/5/2023
KEV Status
No
Technology
Go
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| github.com/kubernetes/kubernetes | go | >= 1.25.0, < 1.25.4 | 1.25.4 |
| github.com/kubernetes/kubernetes | go | >= 1.22.0, < 1.22.16 | 1.22.16 |
| github.com/kubernetes/kubernetes | go | >= 1.24.0, < 1.24.8 | 1.24.8 |
| github.com/kubernetes/kubernetes | go | >= 1.23.0, < 1.23.14 | 1.23.14 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stems from improper validation in node proxying logic. The ProxyREST.Connect function is responsible for handling node proxy requests and validating target addresses. The vulnerability allowed bypassing network restrictions by accepting unvalidated address types (like InternalIP instead of ExternalIP) or localhost addresses. This matches the CWE-20 (Improper Input Validation) classification and aligns with the described attack vector where modified Node objects could route requests to API server's private network.