{
  "id": "CVE-2021-21428",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-05-10T19:15:08.060",
  "lastModified": "2023-06-30T17:43:37.307",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. The insecure temporary folders store the auto-generated files which can be read and appended to by any users on the system. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."
    },
    {
      "lang": "es",
      "value": "Openapi generator es una herramienta de Java que permite la generaci\u00f3n de bibliotecas cliente de API (generaci\u00f3n SDK), stubs de servidor, documentaci\u00f3n y configuraci\u00f3n de forma autom\u00e1tica dada una especificaci\u00f3n de OpenAPI. openapi-generator-online crea carpetas temporales no seguras con File.createTempFile durante el proceso de generaci\u00f3n de c\u00f3digo. Las carpetas temporales no seguras almacenan los archivos generados autom\u00e1ticamente que pueden ser le\u00eddos y adjuntados por cualquier usuario del sistema. El problema se corrigi\u00f3 con \"Files.createTempFile\" y se lanz\u00f3 en la versi\u00f3n estable v5.1.0"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9
      },
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 6.0
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ]
    },
    {
      "source": "security-advisories@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:openapi-generator:openapi_generator:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "5.1.0",
              "matchCriteriaId": "E271BD89-5082-49B0-85BB-39B7AE2792BB"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/OpenAPITools/openapi-generator/pull/8788",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf",
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}