CVE-2024-37307

Cilium leaks sensitive information in cilium-bugtool

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.

Category

7.9
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory github.com
Affected: cilium cilium
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2024-37307?
CVE-2024-37307 has been scored as a high severity vulnerability.
How to fix CVE-2024-37307?
To fix CVE-2024-37307, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-37307 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-37307 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-37307?
CVE-2024-37307 affects cilium cilium.
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