{
  "id": "CVE-2021-21430",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-05-10T20:15:07.840",
  "lastModified": "2022-10-24T20:46:45.157",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. Using `File.createTempFile` in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. Auto-generated code (Java, Scala) that deals with uploading or downloading binary data through API endpoints will create insecure temporary files during the process. Affected generators: `java` (jersey2, okhttp-gson (default library)), `scala-finch`. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."
    },
    {
      "lang": "es",
      "value": "OpenAPI Generator permite la generaci\u00f3n de bibliotecas de cliente API (generaci\u00f3n de SDK), stubs de servidor, documentaci\u00f3n y configuraci\u00f3n de forma autom\u00e1tica dada una especificaci\u00f3n de OpenAPI. El uso de \"File.createTempFile\" en JDK dar\u00e1 como resultado la creaci\u00f3n y el uso de archivos temporales no seguros que pueden dejar la aplicaci\u00f3n y los datos del sistema vulnerables a los ataques. El c\u00f3digo generado autom\u00e1ticamente (Java, Scala) que se ocupa de cargar o descargar datos binarios por medio de los endpoints de la API crear\u00e1 archivos temporales no seguros durante el proceso. Generadores afectados: \"java\" (jersey2, okhttp-gson (biblioteca predeterminada)),\"scala-finch\". 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:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      },
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "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": "5.1.1",
              "matchCriteriaId": "F00E0479-8B4E-4665-B09B-096E44C97DC2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w",
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}