GSD-2021-21428

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-21428
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{
  "GSD": {
    "alias": "CVE-2021-21428",
    "description": "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.",
    "id": "GSD-2021-21428"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21428"
      ],
      "details": "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.",
      "id": "GSD-2021-21428",
      "modified": "2023-12-13T01:23:11.217633Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-21428",
        "STATE": "PUBLIC",
        "TITLE": "Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "openapi-generator",
                    "version": {
                      "version_data": [
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                          "version_value": "\u003c 5.1.0"
                        }
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            "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."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-269: Improper Privilege Management"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf",
            "refsource": "CONFIRM",
            "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf"
          },
          {
            "name": "https://github.com/OpenAPITools/openapi-generator/pull/8788",
            "refsource": "MISC",
            "url": "https://github.com/OpenAPITools/openapi-generator/pull/8788"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-23x4-m842-fmwf",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,5.1.0)",
          "affected_versions": "All versions before 5.1.0",
          "cvss_v2": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-269",
            "CWE-78",
            "CWE-937"
          ],
          "date": "2021-05-11",
          "description": "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.",
          "fixed_versions": [
            "5.1.0"
          ],
          "identifier": "CVE-2021-21428",
          "identifiers": [
            "GHSA-23x4-m842-fmwf",
            "CVE-2021-21428"
          ],
          "not_impacted": "All versions starting from 5.1.0",
          "package_slug": "maven/org.openapitools/openapi-generator-online",
          "pubdate": "2021-05-11",
          "solution": "Upgrade to version 5.1.0 or above.",
          "title": "Improper Privilege Management",
          "urls": [
            "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf",
            "https://github.com/swagger-api/swagger-codegen/security/advisories/GHSA-pc22-3g76-gm6j",
            "https://github.com/OpenAPITools/openapi-generator/pull/8788",
            "https://github.com/OpenAPITools/openapi-generator/blob/c6530519975341d7784a252132b2f0854f488901/modules/openapi-generator-online/src/main/java/org/openapitools/codegen/online/service/Generator.java#L184-L187",
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21428",
            "https://github.com/advisories/GHSA-23x4-m842-fmwf"
          ],
          "uuid": "a2416ab2-59d4-4d50-8670-b48aed7e978e"
        },
        {
          "affected_range": "(,5.1.0)",
          "affected_versions": "All versions before 5.1.0",
          "cvss_v2": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-668",
            "CWE-937"
          ],
          "date": "2023-06-30",
          "description": "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.",
          "fixed_versions": [
            "5.1.0"
          ],
          "identifier": "CVE-2021-21428",
          "identifiers": [
            "CVE-2021-21428",
            "GHSA-23x4-m842-fmwf"
          ],
          "not_impacted": "All versions starting from 5.1.0",
          "package_slug": "maven/org.openapitools/openapi-generator",
          "pubdate": "2021-05-10",
          "solution": "Upgrade to version 5.1.0 or above.",
          "title": "Improper Privilege Management",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21428"
          ],
          "uuid": "ca8c1a24-b8f2-4963-b1bc-f05846d83d3b"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:openapi-generator:openapi_generator:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21428"
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        "data_format": "MITRE",
        "data_type": "CVE",
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-668"
                }
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf"
            },
            {
              "name": "https://github.com/OpenAPITools/openapi-generator/pull/8788",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/OpenAPITools/openapi-generator/pull/8788"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-06-30T17:43Z",
      "publishedDate": "2021-05-10T19:15Z"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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