FKIE_CVE-2023-27594

Vulnerability from fkie_nvd - Published: 2023-03-17 20:15 - Updated: 2024-11-21 07:53
Severity ?
4.2 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.
References
security-advisories@github.comhttps://github.com/cilium/cilium/releases/tag/v1.11.15Third Party Advisory
security-advisories@github.comhttps://github.com/cilium/cilium/releases/tag/v1.12.8Third Party Advisory
security-advisories@github.comhttps://github.com/cilium/cilium/releases/tag/v1.13.1Third Party Advisory
security-advisories@github.comhttps://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hcThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cilium/cilium/releases/tag/v1.11.15Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cilium/cilium/releases/tag/v1.12.8Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cilium/cilium/releases/tag/v1.13.1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hcThird Party Advisory
Impacted products
Vendor Product Version
cilium cilium *
cilium cilium *
cilium cilium *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7726ABC1-0140-46EA-ACDD-44B09826648E",
              "versionEndExcluding": "1.11.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "30E4F1B2-07F4-47AC-8535-553DFF9877C7",
              "versionEndExcluding": "1.12.8",
              "versionStartIncluding": "1.12.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C27C25C7-4E92-48FA-AD06-F4409E57431A",
              "versionEndExcluding": "1.13.1",
              "versionStartIncluding": "1.13.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled.\n\nThis issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default.\n\nThe problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing."
    }
  ],
  "id": "CVE-2023-27594",
  "lastModified": "2024-11-21T07:53:13.370",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-03-17T20:15:13.583",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.11.15"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.12.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.13.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.11.15"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.12.8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/releases/tag/v1.13.1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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