Undefined Scope 'securityDefinition' On Global 'security' Field
- Query id: 9aa6e95c-d964-4239-a3a8-9f37a3c5a31f
- Query name: Undefined Scope 'securityDefinition' On Global 'security' Field
- Platform: OpenAPI
- Severity: Low
- Category: Access Control
- CWE: 284
- URL: Github
Description¶
Using a scope on global security field that is undefined on 'securityDefinitions' can be defined by an attacker
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Positive test num. 1 - 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: Success
securityDefinitions:
oAuth2AuthCodeNeg2:
type: oauth2
description: For more information, see https://api.my.company.com/docs/oauth
flow: authorizationCode
authorizationUrl: https://api.my.company.com/oauth/authorize
tokenUrl: https://api.my.company.com/oauth/token
scopes:
read:api: read your apis
security:
oAuth2AuthCodeNeg2:
- read:api
- error:api
Positive test num. 2 - 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": "Success"
}
}
}
}
},
"securityDefinitions": {
"oAuth2AuthCodeNeg2": {
"type": "oauth2",
"description": "For more information, see https://api.my.company.com/docs/oauth",
"flow": "authorizationCode",
"authorizationUrl": "https://api.my.company.com/oauth/authorize",
"tokenUrl": "https://api.my.company.com/oauth/token",
"scopes": {
"read:api": "read your apis"
}
}
},
"security": {
"oAuth2AuthCodeNeg2": [
"read:api",
"error:api"
]
}
}
Code samples without security vulnerabilities¶
Negative test num. 1 - 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: Success
securityDefinitions:
oAuth2AuthCodeNeg2:
type: oauth2
description: For more information, see https://api.my.company.com/docs/oauth
flow: authorizationCode
authorizationUrl: https://api.my.company.com/oauth/authorize
tokenUrl: https://api.my.company.com/oauth/token
scopes:
read:api: read your apis
security:
oAuth2AuthCodeNeg2:
- read:api
Negative test num. 2 - 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": "Success"
}
}
}
}
},
"securityDefinitions": {
"oAuth2AuthCodeNeg2": {
"type": "oauth2",
"description": "For more information, see https://api.my.company.com/docs/oauth",
"flow": "authorizationCode",
"authorizationUrl": "https://api.my.company.com/oauth/authorize",
"tokenUrl": "https://api.my.company.com/oauth/token",
"scopes": {
"read:api": "read your apis"
}
}
},
"security": {
"oAuth2AuthCodeNeg2": [
"read:api"
]
}
}