CVE-2024-28250

MEDIUM6.1EPSS 0.05%

Unencrypted traffic between nodes with WireGuard in github.com/cilium/cilium

Published: 3/18/2024Modified: 7/1/2024
Also known as:GHSA-v6q2-4qr3-5cw6BIT-cilium-2024-28250BIT-cilium-operator-2024-28250BIT-cilium-proxy-2024-28250BIT-hubble-2024-28250BIT-hubble-relay-2024-28250BIT-hubble-ui-2024-28250BIT-hubble-ui-backend-2024-28250GO-2024-2657

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.

Affected packages (9)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1MEDIUM6.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

References (6)