CVE-2024-37307: Github.com/cilium/cilium Cilium Leaks Sensitive Information Vulnerability

HIGH
Advisory Identifier: GHSA-wh78-7948-358j
CVSS 7.9
CWE-200
Published
Advisory Summary

CVE-2024-37307 is a HIGH (CVSS 7.9) cilium leaks sensitive information vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Github.com/cilium/cilium libraries in the Go ecosystem. The issue involves cilium leaks sensitive information in cilium-bugtool. Remediation is available by upgrading affected packages to version 1.13.17, 1.14.12, 1.15.6.

CVE-2024-37307 at a Glance

CVE Identifier CVE-2024-37307
GHSA Identifier GHSA-wh78-7948-358j
Severity HIGH
CVSS v3.1 Base Score 7.9
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Github.com/cilium/cilium
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2024-37307

To remediate this vulnerability, upgrade all affected Github.com/cilium/cilium dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/cilium/cilium fixed: 1.13.17
Upgrade github.com/cilium/cilium to 1.13.17
github.com/cilium/cilium fixed: 1.14.12
Upgrade github.com/cilium/cilium to 1.14.12
github.com/cilium/cilium fixed: 1.15.6
Upgrade github.com/cilium/cilium to 1.15.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/cilium/cilium

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-37307, inspect your project dependencies for Github.com/cilium/cilium:

inspect dependencies for github.com/cilium/cilium

Analyze the terminal output to locate any version of Github.com/cilium/cilium in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.13.17), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Github.com/cilium/cilium, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact 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 following features are affected: - [TLS inspection](https://docs.cilium.io/en/stable/security/tls-visibility/#gs-tls-inspection) - [Ingress with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/tls-termination/#gs-ingress-tls) - [Gateway API with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/gateway-api/https/) - [Kafka network policies with API key filtering](https://docs.cilium.io/en/stable/security/policy/language/#kafka-beta) The sensitive data includes: - The CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API - 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. ### Patches This issue affects: - Cilium v1.13 between v1.13.0 and v1.13.16 inclusive - Cilium v1.14 between v1.14.0 and v1.14.11 inclusive - Cilium v1.15 between v1.15.0 and v1.15.5 inclusive This issue has been patched in: - Cilium v1.15.6 - Cilium v1.14.12 - Cilium v1.13.17 ### Workarounds There is no workaround to this issue. ### Acknowledgements The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @sayboras for their work on triaging and remediating this issue. ### For more information If you have any questions or comments about this advisory, please reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack). If you think you have found a vulnerability affecting Cilium, we strongly encourage you to report it to our security mailing list at [security@cilium.io](mailto:security@cilium.io). This is a private mailing list for the Cilium security team, and your report will be treated as top priority.

CVE-2024-37307 Affected Github.com/cilium/cilium Versions

3 component(s)
Fixed Versions:
1.13.171.14.121.15.6
Product / Package Ecosystem Affected Versions Fixed Version
github.com/cilium/cilium
Go
≥ 1.13.0
< 1.13.17
1.13.17
github.com/cilium/cilium
Go
≥ 1.14.0
< 1.14.12
1.14.12
github.com/cilium/cilium
Go
≥ 1.15.0
< 1.15.6
1.15.6

References

Frequently Asked Questions

What is CVE-2024-37307?
CVE-2024-37307 is a security vulnerability in Github.com/cilium/cilium involving Cilium leaks sensitive information in cilium-bugtool under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Github.com/cilium/cilium versions are affected?
Affected versions include releases prior to 1.13.17, 1.14.12, 1.15.6 across affected packages: github.com/cilium/cilium.
What version fixes CVE-2024-37307?
Upgrading to 1.13.17, 1.14.12, 1.15.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/cilium/cilium affected?
Yes, github.com/cilium/cilium is affected in releases prior to 1.13.17, 1.14.12, 1.15.6. Upgrade your dependency to 1.13.17, 1.14.12, 1.15.6 or later.
What is the CVSS score of CVE-2024-37307?
CVE-2024-37307 has a CVSS v3.1 base score of 7.9 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2024-37307?
CVE-2024-37307 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Go dependencies for CVE-2024-37307?
Run the dependency tree command: 'inspect dependencies for github.com/cilium/cilium'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wh78-7948-358j",
  "modified" : "2024-06-20T18:53:00Z",
  "published" : "2024-06-13T19:29:36Z",
  "aliases" : [ "CVE-2024-37307" ],
  "summary" : "Cilium leaks sensitive information in cilium-bugtool",
  "details" : "### Impact\n\nThe 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.\n\nUsers of the following features are affected:\n\n- [TLS inspection](https://docs.cilium.io/en/stable/security/tls-visibility/#gs-tls-inspection)\n- [Ingress with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/tls-termination/#gs-ingress-tls)\n- [Gateway API with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/gateway-api/https/)\n- [Kafka network policies with API key filtering](https://docs.cilium.io/en/stable/security/policy/language/#kafka-beta)\n\nThe sensitive data includes:\n\n- The CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API\n- The API keys used in Kafka-related network policy\n\n`cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster.\n\n### Patches\n\nThis issue affects:\n\n- Cilium v1.13 between v1.13.0 and v1.13.16 inclusive\n- Cilium v1.14 between v1.14.0 and v1.14.11 inclusive\n- Cilium v1.15 between v1.15.0 and v1.15.5 inclusive\n\nThis issue has been patched in:\n\n- Cilium v1.15.6\n- Cilium v1.14.12\n- Cilium v1.13.17\n\n### Workarounds\n\nThere is no workaround to this issue.\n\n### Acknowledgements\n\nThe Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @sayboras for their work on triaging and remediating this issue.\n\n### For more information\n\nIf you have any questions or comments about this advisory, please reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack).\n\nIf you think you have found a vulnerability affecting Cilium, we strongly encourage you to report it to our security mailing list at [security@cilium.io](mailto:security@cilium.io). This is a private mailing list for the Cilium security team, and your report will be treated as top priority.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/cilium/cilium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.13.0"
      }, {
        "fixed" : "1.13.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/cilium/cilium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "fixed" : "1.14.12"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/cilium/cilium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.15.0"
      }, {
        "fixed" : "1.15.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/security/advisories/GHSA-wh78-7948-358j"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-37307"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/0191b1ebcfdd61cefd06da0315a0e7d504167407"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/224e288a5bf40d0bb0f16c9413693b319633431a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/9299c0fd0024e33397cffc666ff851e82af28741"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/958d7b77274bf2c272d8cdfd812631d644250653"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/9eb25ba40391a9b035d7e66401b862818f4aac4b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cilium/cilium/commit/bf9a1ae1b2d2b2c9cca329d7aa96aa4858032a61"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/cilium/cilium"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2024-2922"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-06-13T19:29:36Z",
    "nvd_published_at" : "2024-06-13T16:15:11Z"
  }
}