CVE-2024-28250

Medium

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.

SeverityMedium
CVSS6.1
Exploit probability—
ProductCilium
PublishedMar 18, 2024
First seenMar 18, 2024
Weakness typeCWE-311CWE-311

How to fix

Update
  • cilium cilium1.14.8, 1.15.2 or later
  • github.com/cilium/cilium1.14.8, 1.15.2 or later

Affected products

ProductAffected versionsFixed in
cilium cilium1.14.0 ≤ v < 1.14.8, 1.15.0 ≤ v < 1.15.21.14.8, 1.15.2
github.com/cilium/ciliumGo1.14.0 ≤ v < 1.14.8, 1.15.0 ≤ v < 1.15.21.14.8, 1.15.2

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CVE-2024-28250 · Cilium · Dark Radar