Vulnerability CVE-2024-37307
Published: 2024-06-13

Description:
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.13.0 and prior to versions 1.13.7, 1.14.12, and 1.15.6, the output of `cilium-bugtool` can contain sensitive data when the tool is run (with the `--envoy-dump` flag set) against Cilium deployments with the Envoy proxy enabled. Users of the TLS inspection, Ingress with TLS termination, Gateway API with TLS termination, and Kafka network policies with API key filtering features are affected. The sensitive data includes the CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API and the API keys used in Kafka-related network policy. `cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster. This issue has been patched in Cilium v1.15.6, v1.14.12, and v1.13.17. There is no workaround to this issue.

 References:
https://github.com/cilium/cilium/security/advisories/GHSA-wh78-7948-358j
https://github.com/cilium/cilium/commit/0191b1ebcfdd61cefd06da0315a0e7d504167407
https://github.com/cilium/cilium/commit/224e288a5bf40d0bb0f16c9413693b319633431a
https://github.com/cilium/cilium/commit/9299c0fd0024e33397cffc666ff851e82af28741
https://github.com/cilium/cilium/commit/958d7b77274bf2c272d8cdfd812631d644250653
https://github.com/cilium/cilium/commit/9eb25ba40391a9b035d7e66401b862818f4aac4b
https://github.com/cilium/cilium/commit/bf9a1ae1b2d2b2c9cca329d7aa96aa4858032a61
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