Project: KICS (Provisioning / Security & Compliance)
File: 8c8261c2-19a9-4ef7-ad37-b8bc7bdd4d85.md

title: Maximum Length Undefined (v3) hide: toc: true navigation: true <style> .highlight .hll { background-color: #ff171742; } .md-content { max-width: 1100px; margin: 0 auto; } </style> Query id: 8c8261c2-19a9-4ef7-ad37-b8bc7bdd4d85 Query name: Maximum Length Undefined (v3) Platform: OpenAPI Severity: <span style="color:#edd57e">Low</span> Category: Insecure Configurations URL: String schema should have 'maxLength' defined.<br> ```json title="Positive test num. 1 - json file" hl_lines="58 77 62" { "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" } } } } } } } ``` ```json title="Positive test num. 2 - json file" hl_lines="27 31" { "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" } } } } ``` ```yaml title="Positive test num. 3 - yaml file" hl_lines="34 37 47" 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" ``` <details><summary>Positive test num. 4 - yaml file</summary> ```yaml hl_lines="25 22" 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 ``` </details> <details><summary>Positive test num. 5 - json file</summary> ```json hl_lines="27 23" { "swagger": "2.0", "info": { "title": "Simple API Overview", "version": "1.0.0", "contact": { "name": "contact", "url": "https://www.google.com/", "email":

} }, "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" } } } } } } } ``` </details> <details><summary>Positive test num. 6 - yaml file</summary> ```yaml hl_lines="19 22" 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 ``` </details> <details><summary>Positive test num. 7 - json file</summary> ```json hl_lines="28 23" { "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" } } } } } } } ``` </details> <details><summary>Positive test num. 8 - json file</summary> ```json hl_lines="28" { "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" } } } } } } } ``` </details> <details><summary>Positive test num. 9 - json file</summary> ```json hl_lines="46 55" { "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|?)\\.){3}(?:25|?)", "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": "impapgr", "schema": { "pattern": "[a-z0-9-]+", "type": "string" } } ], "responses": { "default": { "description": "" } }, "security": [ { "JWT1": [] } ] } } }, "servers": [ ] } ``` </details> ```json title="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" } } } } } } } ``` ```json title="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":

} }, "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" } ] } ] } } } } } } } } } } } ``` ```yaml title="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" ``` <details><summary>Negative test num. 4 - yaml file</summary> ```yaml 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 ``` </details> <details><summary>Negative test num. 5 - json file</summary> ```json { "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" } } } } } } } ``` </details> <details><summary>Negative test num. 6 - yaml file</summary> ```yaml 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 ``` </details> <details><summary>Negative test num. 7 - json file</summary> ```json { "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" } } } } } } } ``` </details> <details><summary>Negative test num. 8 - json file</summary> ```json { "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" } } } } } } } ``` </details>