Default Response Undefined On Operations (v3)

• Query id: 86e3702f-c868-44b2-b61d-ea5316c18110
• Query name: Default Response Undefined On Operations (v3)
• Platform: OpenAPI
• Severity: Low
• Category: Networking and Firewall
• CWE: 665
• URL: Github

Description

Operations responses should have a default response defined
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - json file

{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API",
    "version": "1.0.0"
  },
  "paths": {
    "/item": {
      "patch": {
        "operationId": "updateItem",
        "summary": "Updated item",
        "responses": {
          "204": {
            "description": "Item deleted successfully"
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Error": {
        "type": "object",
        "properties": {
          "code": {
            "type": "string"
          },
          "message": {
            "type": "string"
          }
        },
        "required": [
          "code",
          "message"
        ]
      }
    }
  }
}

Positive test num. 2 - json file

{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API",
    "version": "1.0.0"
  },
  "paths": {
    "/item": {
      "delete": {
        "operationId": "deleteItem",
        "summary": "Delete item",
        "responses": {
          "204": {
            "description": "Item deleted successfully"
          }
        }
      },
      "patch": {
        "operationId": "updateItem",
        "summary": "Update item",
        "responses": {
          "204": {
            "description": "Item updated successfully"
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Error": {
        "type": "object",
        "properties": {
          "code": {
            "type": "string"
          },
          "message": {
            "type": "string"
          }
        },
        "required": [
          "code",
          "message"
        ]
      }
    }
  }
}

Positive test num. 3 - yaml file

openapi: 3.0.0
info:
  title: Simple API
  version: 1.0.0
paths:
  "/item":
    patch:
      operationId: updateItem
      summary: Updated item
      responses:
        '204':
          description: Item deleted successfully
components:
  schemas:
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
      required:
      - code
      - message

Positive test num. 4 - yaml file

openapi: 3.0.0
info:
  title: Simple API
  version: 1.0.0
paths:
  "/item":
    delete:
      operationId: deleteItem
      summary: Delete item
      responses:
        '204':
          description: Item deleted successfully
    patch:
      operationId: updateItem
      summary: Update item
      responses:
        '204':
          description: Item updated successfully
components:
  schemas:
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
      required:
      - code
      - message

Positive test num. 5 - json file

{
  "swagger": "20",
  "info": {
    "title": "Simple API",
    "version": "1.0.0"
  },
  "paths": {
    "/item": {
      "delete": {
        "operationId": "deleteItem",
        "summary": "Delete item",
        "responses": {
          "204": {
            "description": "Item deleted successfully"
          }
        }
      },
      "patch": {
        "operationId": "updateItem",
        "summary": "Update item",
        "responses": {
          "204": {
            "description": "Item updated successfully"
          }
        }
      }
    }
  }
}

Positive test num. 6 - yaml file

swagger: "2.0"
info:
  title: Simple API
  version: 1.0.0
paths:
  "/item":
    delete:
      operationId: deleteItem
      summary: Delete item
      responses:
        "204":
          description: Item deleted successfully
    patch:
      operationId: updateItem
      summary: Update item
      responses:
        "204":
          description: Item updated successfully

Code samples without security vulnerabilities

Negative test num. 1 - json file

{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API",
    "version": "1.0.0"
  },
  "paths": {
    "/item": {
      "delete": {
        "operationId": "deleteItem",
        "summary": "Delete item",
        "responses": {
          "204": {
            "description": "Item deleted successfully"
          },
          "default": {
            "description": "Error"
          }
        }
      },
      "patch": {
        "operationId": "updateItem",
        "summary": "Update item",
        "responses": {
          "204": {
            "description": "Item updated successfully"
          },
          "default": {
            "description": "Error"
          }
        }
      }
    }
  }
}

Negative test num. 2 - yaml file

openapi: 3.0.0
info:
  title: Simple API
  version: 1.0.0
paths:
  "/item":
    delete:
      operationId: deleteItem
      summary: Delete item
      responses:
        "204":
          description: Item deleted successfully
        default:
          description: Error
    patch:
      operationId: updateItem
      summary: Update item
      responses:
        "204":
          description: Item updated successfully
        default:
          description: Error

Negative test num. 3 - json file

{
  "swagger": "2.0",
  "info": {
    "title": "Simple API",
    "version": "1.0.0"
  },
  "paths": {
    "/item": {
      "delete": {
        "operationId": "deleteItem",
        "summary": "Delete item",
        "responses": {
          "204": {
            "description": "Item deleted successfully"
          },
          "default": {
            "description": "Error"
          }
        }
      },
      "patch": {
        "operationId": "updateItem",
        "summary": "Update item",
        "responses": {
          "204": {
            "description": "Item updated successfully"
          },
          "default": {
            "description": "Error"
          }
        }
      }
    }
  }
}

Negative test num. 4 - yaml file

swagger: "2.0"
info:
  title: Simple API
  version: 1.0.0
paths:
  "/item":
    delete:
      operationId: deleteItem
      summary: Delete item
      responses:
        "204":
          description: Item deleted successfully
        default:
          description: Error
    patch:
      operationId: updateItem
      summary: Update item
      responses:
        "204":
          description: Item updated successfully
        default:
          description: Error