{
  "id": "CVE-2021-22862",
  "sourceIdentifier": "product-cna@github.com",
  "published": "2021-03-03T04:15:13.163",
  "lastModified": "2022-10-25T14:03:18.477",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. This vulnerability existed due to a flaw that allowed the base reference of a pull request to be updated to point to an arbitrary SHA or another pull request outside of the fork repository. By establishing this incorrect reference in a PR, the restrictions that limit the Actions secrets sent a workflow from forks could be bypassed. This vulnerability affected GitHub Enterprise Server version 3.0.0, 3.0.0.rc2, and 3.0.0.rc1. This vulnerability was reported via the GitHub Bug Bounty program."
    },
    {
      "lang": "es",
      "value": "Se identific\u00f3 una vulnerabilidad de control de acceso inadecuada en GitHub Enterprise Server que permit\u00eda a un usuario autenticado con la capacidad de bifurcar un repositorio revelar los secretos de las acciones para el repositorio padre de la bifurcaci\u00f3n. Esta vulnerabilidad exist\u00eda debido a un fallo que permit\u00eda actualizar la referencia base de un pull request para que apuntara a un SHA arbitrario o a otro pull request fuera del repositorio fork. Al establecer esta referencia incorrecta en un PR, las restricciones que limitan las Acciones secretas enviadas a un flujo de trabajo desde los forks pod\u00edan ser eludidas. Esta vulnerabilidad afectaba a las versiones 3.0.0, 3.0.0.rc2 y 3.0.0.rc1 de GitHub Enterprise Server. Esta vulnerabilidad fue reportada a trav\u00e9s del programa GitHub Bug Bounty"
    }
  ],
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        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    },
    {
      "source": "product-cna@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.1",
      "source": "product-cna@github.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
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  ]
}