Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.
Published: 2024-03-18
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-1011 Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.
Github GHSA Github GHSA GHSA-v6q2-4qr3-5cw6 Unencrypted traffic between nodes when using WireGuard and L7 policies
History

Thu, 09 Jan 2025 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Cilium
Cilium cilium
Weaknesses CWE-319
CPEs cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
Vendors & Products Cilium
Cilium cilium

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-02T00:48:49.605Z

Reserved: 2024-03-07T14:33:30.036Z

Link: CVE-2024-28250

cve-icon Vulnrichment

Updated: 2024-05-23T19:01:18.634Z

cve-icon NVD

Status : Analyzed

Published: 2024-03-18T22:15:08.750

Modified: 2025-01-09T16:47:40.047

Link: CVE-2024-28250

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses