Maximum Length Undefined (v3)
- Query id: 8c8261c2-19a9-4ef7-ad37-b8bc7bdd4d85
- Query name: Maximum Length Undefined (v3)
- Platform: OpenAPI
- Severity: Low
- Category: Insecure Configurations
- URL: Github
Description¶
String schema should have 'maxLength' 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": {
"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"
}
}
}
}
}
}
}
Positive 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": {
"discriminator": {
"propertyName": "petType"
},
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32"
},
"message": {
"type": "string"
}
},
"required": [
"petType"
],
"type": "object"
},
"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"
}
}
}
}
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:
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"
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:
type: object
discriminator:
propertyName: petType
additionalProperties: false
properties:
code:
type: string
format: int32
message:
type: string
required:
- petType
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
Positive test num. 5 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32"
},
"message": {
"type": "string"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}
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:
type: object
discriminator: petType
additionalProperties: false
properties:
code:
type: string
format: int32
message:
type: string
required:
- petType
Positive test num. 7 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"pattern": "[a-z0-9-]*"
},
"message": {
"type": "string",
"pattern": "[a-z]{3,}"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}
Positive test num. 8 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"pattern": "[a-z0-9-]{2,3}"
},
"message": {
"type": "string",
"pattern": "[a-z]+"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}
Positive test num. 9 - json file
{
"components": {
"securitySchemes": {
"Basic1": {
"scheme": "basic",
"type": "http"
},
"JWT1": {
"scheme": "basic",
"type": "http"
},
"JWT1-1": {
"bearerFormat": "JWT",
"scheme": "bearer",
"type": "http"
}
}
},
"info": {
"description": "Swagger auto-generated from learnt schema for ves-io-demo-app-waap-sentence-api",
"title": "ves-io-demo-app-waap-sentence-api",
"version": "2023-06-21 13:26:46"
},
"openapi": "3.0.3",
"paths": {
"/api/adjectives": {
"get": {
"description": "Swagger auto-generated from learnt schema",
"parameters": [
{
"description": "IPv4 Address",
"in": "header",
"name": "xff",
"schema": {
"pattern": "(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)",
"type": "string",
"x-pii": {}
}
},
{
"description": "Word",
"in": "header",
"name": "x-f5-request-id",
"schema": {
"pattern": "[a-z0-9-]+",
"type": "string"
}
},
{
"description": "Word",
"in": "cookie",
"name": "_imp_apg_r_",
"schema": {
"pattern": "[a-z0-9-]+",
"type": "string"
}
}
],
"responses": {
"default": {
"description": ""
}
},
"security": [
{
"JWT1": []
}
]
}
}
},
"servers": [
]
}
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",
"maxLength": 15,
"format": "int32"
},
"message": {
"type": "string",
"maxLength": 15
}
},
"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": {
"discriminator": {
"propertyName": "petType"
},
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"maxLength": 15
},
"message": {
"type": "string",
"maxLength": 15
}
},
"required": [
"petType"
],
"type": "object"
},
"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"
}
]
}
]
}
}
}
}
}
}
}
}
}
}
}
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
maxLength: 15
format: int32
message:
type: string
maxLength: 15
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:
type: object
discriminator:
propertyName: petType
additionalProperties: false
properties:
code:
type: string
format: int32
maxLength: 15
message:
type: string
maxLength: 15
required:
- petType
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
maxLength: 15
message:
type: string
maxLength: 15
required:
- petType
Negative test num. 5 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"maxLength": 15
},
"message": {
"type": "string",
"maxLength": 15
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}
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:
type: object
discriminator: petType
additionalProperties: false
properties:
code:
type: string
format: int32
maxLength: 15
message:
type: string
maxLength: 15
required:
- petType
Negative test num. 7 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"pattern": "[a-z0-9-]"
},
"message": {
"type": "string",
"pattern": "[a-z]{3}"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}
Negative test num. 8 - json file
{
"swagger": "2.0",
"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",
"schema": {
"discriminator": "petType",
"additionalProperties": false,
"properties": {
"code": {
"type": "string",
"format": "int32",
"pattern": "[a-z0-9-]?"
},
"message": {
"type": "string",
"pattern": "[a-z]\\{2,\\}"
}
},
"required": [
"petType"
],
"type": "object"
}
}
}
}
}
}
}