Holes in EndpointSlice Validation Enable Host Network Hijack (Kubernetes Kubernetes)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.33 % · percentile 71 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- kubernetes
- NVD status
- Modified
Description
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N | kubernetes |
| CVSS 3.1 | LOW 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N | NVD · jordan@liggitt.net (Secondary) |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.9 | AV:N/AC:M/Au:S/C:P/I:P/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-mfv7-gq43-w965 — Incomplete List of Disallowed Inputs in Kubernetes
- GO-2022-0908 — Incomplete List of Disallowed Inputs in Kubernetes in k8s.io/kubernetes
European references
- ENISA EUVD · EUVD-2021-2095
- GCVE · GCVE-0-2021-25737
CERT-FR advisories
- CERTFR-2022-AVI-591 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*≥ 1.16.0 < 1.18.19cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*≥ 1.19.0 < 1.19.10cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*≥ 1.20.0 < 1.20.7cpe:2.3:a:kubernetes:kubernetes:1.21.0:-:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Kubernetes · Kubernetes | affected unspecified ≤ 1.18.18 ; affected unspecified ≤ 1.19.10 ; affected unspecified ≤ 1.20.6 ; affected unspecified ≤ 1.21.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |