fkie_cve-2023-43645
Vulnerability from fkie_nvd
Published
2023-09-27 15:19
Modified
2024-11-21 08:24
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA is vulnerable to a denial of service attack when certain Check calls are executed against authorization models that contain circular relationship definitions. When the call is made, it's possible for the server to exhaust resources and die. Users are advised to upgrade to v1.3.2 and update any offending models. There are no known workarounds for this vulnerability. Note that for models which contained cycles or a relation definition that has the relation itself in its evaluation path, checks and queries that require evaluation will no longer be evaluated on v1.3.2+ and will return errors instead. Users who do not have cyclic models are unaffected.
References
security-advisories@github.comhttps://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6Patch
security-advisories@github.comhttps://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqhVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqhVendor Advisory
Impacted products
Vendor Product Version
openfga openfga *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "96CAB7D1-0960-4345-AE65-6BCC577FAA24",
              "versionEndExcluding": "1.3.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA is vulnerable to a denial of service attack when certain Check calls are executed against authorization models that contain circular relationship definitions. When the call is made, it\u0027s possible for the server to exhaust resources and die. Users are advised to upgrade to v1.3.2 and update any offending models. There are no known workarounds for this vulnerability. Note that for models which contained cycles or a relation definition that has the relation itself in its evaluation path, checks and queries that require evaluation will no longer be evaluated on v1.3.2+ and will return errors instead. Users who do not have cyclic models are unaffected."
    },
    {
      "lang": "es",
      "value": "OpenFGA es un motor de autorizaci\u00f3n/permisos creado para desarrolladores e inspirado en Google Zanzibar. OpenFGA es vulnerable a un ataque de denegaci\u00f3n de servicio cuando ciertas llamadas de verificaci\u00f3n se ejecutan contra modelos de autorizaci\u00f3n que contienen definiciones de relaciones circulares. Cuando se realiza la llamada, es posible que el servidor agote los recursos y muera. Se recomienda a los usuarios que actualicen a la versi\u00f3n 1.3.2 y actualicen cualquier modelo infractor. No se conocen workarounds para esta vulnerabilidad. Tenga en cuenta que para los modelos que contienen ciclos o una definici\u00f3n de relaci\u00f3n que tiene la relaci\u00f3n misma en su ruta de evaluaci\u00f3n, las comprobaciones y consultas que requieren evaluaci\u00f3n ya no se evaluar\u00e1n en la versi\u00f3n 1.3.2+ y, en su lugar, devolver\u00e1n errores. Los usuarios que no tienen modelos c\u00edclicos no se ven afectados."
    }
  ],
  "id": "CVE-2023-43645",
  "lastModified": "2024-11-21T08:24:32.093",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-09-27T15:19:34.330",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqh"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqh"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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