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Moderate severityNVD Advisory· Published Mar 18, 2024· Updated Aug 2, 2024

Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies

CVE-2024-28250

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/cilium/ciliumGo
>= 1.14.0, < 1.14.81.14.8
github.com/cilium/ciliumGo
>= 1.15.0, < 1.15.21.15.2

Affected products

28

Patches

Vulnerability mechanics

References

6

News mentions

0

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