Vulnerability · Published Jun 13, 2024 · Assigned by GitHub_M
CVE-2024-37307Cilium leaks sensitive information in cilium-bugtool
High 7.9
In plain English
A high-severity information exposure in cilium from cilium. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/cilium/cilium | 1.13.17 | GHSA-wh78-7948-358j |
| Go | github.com/cilium/cilium | 1.14.12 | GHSA-wh78-7948-358j |
| Go | github.com/cilium/cilium | 1.15.6 | GHSA-wh78-7948-358j |
| Go | github.com/cilium/cilium | 1.13.17, 1.14.12, 1.15.6 | GO-2024-2922 |
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
References
- https://github.com/cilium/cilium/security/advisories/GHSA-wh78-7948-358j x_refsource_CONFIRM
- https://github.com/cilium/cilium/commit/0191b1ebcfdd61cefd06da0315a0e7d504167407 x_refsource_MISC
- https://github.com/cilium/cilium/commit/224e288a5bf40d0bb0f16c9413693b319633431a x_refsource_MISC
- https://github.com/cilium/cilium/commit/9299c0fd0024e33397cffc666ff851e82af28741 x_refsource_MISC
- https://github.com/cilium/cilium/commit/958d7b77274bf2c272d8cdfd812631d644250653 x_refsource_MISC
- https://github.com/cilium/cilium/commit/9eb25ba40391a9b035d7e66401b862818f4aac4b x_refsource_MISC
- https://github.com/cilium/cilium/commit/bf9a1ae1b2d2b2c9cca329d7aa96aa4858032a61 x_refsource_MISC