CVE-2024-37307

HIGH
Published Jun 13, 2024 Modified Jan 9, 2025 CWE-200

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.

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CVSS v3.1 Score

7.9
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Weakness Type (CWE)

CWE-200 CWE-200

Affected Products

Vendor Product
cilium cilium
cilium cilium
cilium cilium

References

Advisories & Patches

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 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 https://github.com/cilium/cilium/security/advisories/GHSA-wh78-7948-358j

Frequently Asked Questions

What is CVE-2024-37307? +
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. It has a CVSS v3.1 base score of 7.9 (HIGH).
How severe is CVE-2024-37307? +
CVE-2024-37307 has a CVSS v3.1 score of 7.9 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-37307? +
CVE-2024-37307 affects products from cilium, specifically: cilium. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-37307? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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