Operation Example Mismatch Produces MimeType

• Query id: 2cf35b40-ded3-43d6-9633-c8dcc8bcc822
• Query name: Operation Example Mismatch Produces MimeType
• Platform: OpenAPI
• Severity: Info
• Category: Structure and Semantics
• CWE: 20
• URL: Github

Description

Example should match one of MimeTypes on 'produces'. It is important to know that, if a 'produces' is declared on operation it will override global 'produces'
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - json file

{
  "swagger": "2.0",
  "info": {
    "title": "Simple API Overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "get": {
        "parameters": [
          {
            "name": "limit2",
            "in": "body",
            "description": "max records to return",
            "required": true,
            "schema": {
              "type": "integer"
            }
          }
        ],
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "produces": [
          "application/json"
        ],
        "responses": {
          "200": {
            "description": "OK",
            "examples": {
              "application/json": {
                "id": 38,
                "title": "Versions"
              },
              "text/csv": "id,title 38,Versions"
            }
          }
        }
      }
    }
  },
  "parameters": {
    "limitParam": {
      "name": "limit",
      "in": "body",
      "description": "max records to return",
      "required": true,
      "schema": {
        "type": "integer"
      }
    }
  }
}

Positive test num. 2 - yaml file

---
swagger: '2.0'
info:
  title: Simple API Overview
  version: 1.0.0
paths:
  "/":
    get:
      parameters:
      - name: limit2
        in: body
        description: max records to return
        required: true
        schema:
          type: integer
      operationId: listVersionsv2
      summary: List API versions
      produces:
      - application/json
      responses:
        '200':
          description: OK
          examples:
            application/json:
              id: 38
              title: Versions
            text/csv: id,title 38,Versions
parameters:
  limitParam:
    name: limit
    in: body
    description: max records to return
    required: true
    schema:
      type: integer

Code samples without security vulnerabilities

Negative test num. 1 - json file

{
  "swagger": "2.0",
  "info": {
    "title": "Simple API Overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "get": {
        "parameters": [
          {
            "name": "limit2",
            "in": "body",
            "description": "max records to return",
            "required": true,
            "schema": {
              "type": "integer"
            }
          }
        ],
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "produces": [
          "application/json",
          "text/csv"
        ],
        "responses": {
          "200": {
            "description": "OK",
            "examples": {
              "application/json": {
                "id": 38,
                "title": "Versions"
              },
              "text/csv": "id,title 38,Versions"
            }
          }
        }
      }
    }
  },
  "parameters": {
    "limitParam": {
      "name": "limit",
      "in": "body",
      "description": "max records to return",
      "required": true,
      "schema": {
        "type": "integer"
      }
    }
  }
}

Negative test num. 2 - json file

{
  "swagger": "2.0",
  "info": {
    "title": "Simple API Overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "get": {
        "parameters": [
          {
            "name": "limit2",
            "in": "body",
            "description": "max records to return",
            "required": true,
            "schema": {
              "type": "integer"
            }
          }
        ],
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "OK",
            "examples": {
              "application/json": {
                "id": 38,
                "title": "Versions"
              },
              "text/csv": "id,title 38,Versions"
            }
          }
        }
      }
    }
  },
  "produces": [
    "application/json",
    "text/csv"
  ],
  "parameters": {
    "limitParam": {
      "name": "limit",
      "in": "body",
      "description": "max records to return",
      "required": true,
      "schema": {
        "type": "integer"
      }
    }
  }
}

Negative test num. 3 - yaml file

swagger: '2.0'
info:
  title: Simple API Overview
  version: 1.0.0
paths:
  "/":
    get:
      parameters:
      - name: limit2
        in: body
        description: max records to return
        required: true
        schema:
          type: integer
      operationId: listVersionsv2
      summary: List API versions
      produces:
      - application/json
      - text/csv
      responses:
        '200':
          description: OK
          examples:
            application/json:
              id: 38
              title: Versions
            text/csv: id,title 38,Versions
parameters:
  limitParam:
    name: limit
    in: body
    description: max records to return
    required: true
    schema:
      type: integer

Negative test num. 4 - yaml file

---
swagger: '2.0'
info:
  title: Simple API Overview
  version: 1.0.0
paths:
  "/":
    get:
      parameters:
      - name: limit2
        in: body
        description: max records to return
        required: true
        schema:
          type: integer
      operationId: listVersionsv2
      summary: List API versions
      responses:
        '200':
          description: OK
          examples:
            application/json:
              id: 38
              title: Versions
            text/csv: id,title 38,Versions
produces:
- application/json
- text/csv
parameters:
  limitParam:
    name: limit
    in: body
    description: max records to return
    required: true
    schema:
      type: integer