JSON Object Schema Without Type (v3)
- Query id: e2ffa504-d22a-4c94-b6c5-f661849d2db7
- Query name: JSON Object Schema Without Type (v3)
- Platform: OpenAPI
- Severity: Medium
- Category: Insecure Configurations
- CWE: 20
- URL: Github
Description¶
Schema of the JSON object should have 'type' defined.
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Positive test num. 1 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0",
"contact": {
"name": "contact",
"url": "https://www.google.com/",
"email": "user@gmail.com"
}
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"examples": {
"foo": {
"value": {
"versions": [
{
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0",
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
]
}
]
}
}
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"GeneralError": {
"discriminator": {
"propertyName": "petType"
},
"properties": {
"code": {
"type": "string",
"format": "int32"
},
"message": {
"type": "string"
}
},
"required": [
"petType"
]
}
},
"requestBodies": {
"NewItem": {
"description": "A JSON object containing item data",
"required": true,
"content": {
"multipart/form-data": {
"schema": {
"$ref": "#/components/schemas/GeneralError"
}
}
}
}
}
}
}
Positive test num. 2 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/GeneralError"
},
"examples": {
"foo": {
"value": {
"versions": [
{
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0",
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
]
}
]
}
}
}
}
}
}
},
"operationId": "listVersionsv2",
"summary": "List API versions"
}
}
},
"components": {
"schemas": {
"GeneralError": {
"discriminator": {
"propertyName": "petType"
},
"required": [
"petType"
]
}
}
}
}
Positive test num. 3 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
schemas:
GeneralError:
discriminator:
propertyName: petType
properties:
code:
type: string
format: int32
message:
type: string
required:
- petType
requestBodies:
NewItem:
description: A JSON object containing item data
required: true
content:
multipart/form-data:
schema:
$ref: "#/components/schemas/GeneralError"
Positive test num. 4 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
schema:
$ref: "#/components/schemas/GeneralError"
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
schemas:
GeneralError:
discriminator:
propertyName: petType
required:
- petType
Positive test num. 5 - json file
{
"swagger": "2.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"schema": {
"$ref": "#/definitions/GeneralError"
}
}
}
}
}
},
"definitions": {
"GeneralError": {
"discriminator": "petType",
"required": [
"petType"
],
"properties": {
"message": {
"type": "string"
},
"code": {
"type": "string",
"format": "int32"
}
}
}
}
}
Positive test num. 6 - yaml file
swagger: "2.0"
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
schema:
$ref: "#/definitions/GeneralError"
definitions:
GeneralError:
discriminator: petType
required:
- petType
properties:
code:
type: string
format: int32
message:
type: string
Code samples without security vulnerabilities¶
Negative test num. 1 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0",
"contact": {
"name": "contact",
"url": "https://www.google.com/",
"email": "user@gmail.com"
}
},
"paths": {
"/": {
"get": {
"operationId": "listVersionsv2",
"summary": "List API versions",
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"examples": {
"foo": {
"value": {
"versions": [
{
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0",
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
]
}
]
}
}
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"GeneralError": {
"type": "object",
"discriminator": {
"propertyName": "petType"
},
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32"
},
"message": {
"type": "string"
}
},
"required": [
"petType"
]
}
},
"requestBodies": {
"NewItem": {
"description": "A JSON object containing item data",
"required": true,
"content": {
"multipart/form-data": {
"schema": {
"$ref": "#/components/schemas/GeneralError"
}
}
}
}
}
}
}
Negative test num. 2 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0",
"contact": {
"name": "contact",
"url": "https://www.google.com/",
"email": "user@gmail.com"
}
},
"paths": {
"/": {
"get": {
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/GeneralError"
},
"examples": {
"foo": {
"value": {
"versions": [
{
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0",
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
]
}
]
}
}
}
}
}
}
},
"operationId": "listVersionsv2",
"summary": "List API versions"
}
}
},
"components": {
"schemas": {
"GeneralError": {
"discriminator": {
"propertyName": "petType"
},
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32"
},
"message": {
"type": "string"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
Negative test num. 3 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
schemas:
GeneralError:
type: object
discriminator:
propertyName: petType
additionalProperties: false
properties:
code:
type: string
format: int32
message:
type: string
required:
- petType
requestBodies:
NewItem:
description: A JSON object containing item data
required: true
content:
multipart/form-data:
schema:
$ref: "#/components/schemas/GeneralError"
Negative test num. 4 - yaml file
openapi: 3.0.0
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
content:
application/json:
schema:
$ref: "#/components/schemas/GeneralError"
examples:
foo:
value:
versions:
- status: CURRENT
updated: "2011-01-21T11:33:21Z"
id: v2.0
links:
- href: http://127.0.0.1:8774/v2/
rel: self
components:
schemas:
GeneralError:
type: object
discriminator:
propertyName: petType
additionalProperties: false
properties:
code:
type: string
format: int32
message:
type: string
required:
- petType
Negative test num. 5 - json file
{
"openapi": "3.0.0",
"info": {
"title": "Simple API Overview",
"version": "1.0.0"
},
"paths": {
"/": {
"get": {
"responses": {
"200": {
"description": "200 response",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/GeneralError"
},
"examples": {
"foo": {
"value": {
"versions": [
{
"status": "CURRENT",
"updated": "2011-01-21T11:33:21Z",
"id": "v2.0",
"links": [
{
"href": "http://127.0.0.1:8774/v2/",
"rel": "self"
}
]
}
]
}
}
}
}
}
}
},
"operationId": "listVersionsv2",
"summary": "List API versions"
}
}
},
"components": {
"schemas": {
"GeneralError": {
"type": "object",
"discriminator": {
"propertyName": "petType"
},
"required": [
"petType"
]
}
}
}
}
Negative test num. 6 - yaml file
swagger: "2.0"
info:
title: Simple API Overview
version: 1.0.0
paths:
"/":
get:
operationId: listVersionsv2
summary: List API versions
responses:
"200":
description: 200 response
schema:
$ref: "#/definitions/GeneralError"
definitions:
GeneralError:
type: object
discriminator: petType
required:
- petType
properties:
code:
type: string
format: int32
message:
type: string