CVE-2024-28250
Unencrypted traffic between nodes with WireGuard in github.com/cilium/cilium
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.
How to fix CVE-2024-28250
To remediate CVE-2024-28250, upgrade the affected package to a fixed version below.
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
- —upgrade to 1.14.8 or later
Is CVE-2024-28250 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (9)
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8, >= 1.15.0, < 1.15.2
- >= 1.14.0, < 1.14.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |