GSD-2023-34242

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC.
Aliases
Aliases
CVE-2023-34242
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{
  "GSD": {
    "alias": "CVE-2023-34242",
    "id": "GSD-2023-34242"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "details": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC.",
      "id": "GSD-2023-34242",
      "modified": "2023-12-13T01:20:30.650739Z",
      "schema_version": "1.4.0"
    }
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                    "version": {
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          }
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      "impact": {
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            "availabilityImpact": "NONE",
            "baseScore": 3.4,
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            "confidentialityImpact": "LOW",
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            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N",
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      "advisories": [
        {
          "affected_range": "\u003e=1.13.0 \u003c1.13.4",
          "affected_versions": "All versions starting from 1.13.0 before 1.13.4",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-200",
            "CWE-937"
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          "date": "2023-06-19",
          "description": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC.",
          "fixed_versions": [
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          "identifier": "CVE-2023-34242",
          "identifiers": [
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            "CVE-2023-34242"
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          "not_impacted": "All versions before 1.13.0, all versions starting from 1.13.4",
          "package_slug": "go/github.com/cilium/cilium",
          "pubdate": "2023-06-16",
          "solution": "Upgrade to version 1.13.4 or above.",
          "title": "Exposure of Sensitive Information to an Unauthorized Actor",
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      "impact": {
        "baseMetricV3": {
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            "attackComplexity": "LOW",
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            "confidentialityImpact": "LOW",
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            "scope": "UNCHANGED",
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        }
      },
      "lastModifiedDate": "2023-07-03T19:12Z",
      "publishedDate": "2023-06-15T20:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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