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Questions tagged [api]

Application Programming Interface; a set of routines, protocols, tools or endpoints used in software development.

1
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1answer
77 views

Should I report this Google API key disclosure issue or not?

I have been asked to perform a pentest on a website from a company. I was analyzing the javascript files they were using, and I found a link pointing to: https://www.googleapis.com/customsearch/v1/...
0
votes
1answer
53 views

How does using an auth server for mobile app and not storing API keys on client add security?

I've been reading about how unsafe and bad and terrible it is to store your API keys inside your mobile app (whatever solution you have for that) and that you should use a separate server for ...
0
votes
0answers
46 views

JSON(blob?) to POST/GET request

First i want to say that i'm not sure if its called JSON blob, I found API endpoint on private program which i can convert from JSON to normal GET/POST request with parameters however i have found ...
0
votes
0answers
26 views

Does an OAuth1.0a HTTP GET endpoint in my API present a security vulnerability?

I'm building a hobby application, and I'd prefer it not end up on a cyber-security expert's list of insecure sites. My application can post to Twitter on behalf of a user. This required implementing ...
3
votes
1answer
86 views

Is it ok to use the same SSL certificate for both HTTPS and SOAP-level signing/encryption?

I'm currently looking after an integration platform with SOAP based web service connections out to partner organizations. At the moment, the same SSL certificate is used for both transport level ...
4
votes
1answer
65 views

API pentesting for mobile and web. What's the difference?

So, I have to pentest an API that is both used by a web app and two mobile apps (Android and iOS, obviously). My question is: do I have to test three times (i.e., for each app) or just once (since it'...
3
votes
1answer
146 views

API Key in microservices

Is sending an encrypted connection string as an API Key through headers a good idea? Someone once told me, storing API Keys in a DB is a bad thing to do but I can't seem to figure out how, when in ...
0
votes
2answers
97 views

CORS Anywhere to bypass CSRF protection

CORS Anywhere helps with accessing data from other websites that is normally forbidden by the Same origin policy of Web browsers. Can CORS Anywhere able to bypass CSRF protections? Reason to ask ...
2
votes
2answers
187 views

Security of Publicly exposed REST APIs

We are in a process to expose some data (not sensitive) via REST APIs. Our API consumer requested the same using only API Key authentication. No Mutual Authentication TLS, no OAuth but plain simple ...
2
votes
4answers
91 views

How to stop people from spamming the account creation url on my website [duplicate]

let's say I have a website with an account creation form. How can I stop people from writing a program that automatically submits the form thousands of times, which would fill up my database with junk ...
1
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0answers
25 views

Securing Rest API content using .Net Identity Framework [migrated]

Can anyone provide direction on how to add a Rest API to an existing Azure .net website as an alternative to receive private information? Like many website, we already have good U&P authentication ...
0
votes
2answers
71 views

Should I send the user ID of the user trying to authenticate in a HTTP header when using access token?

Im building a REST api for an ios application! Would it be a good idea to send the user id (primary autoincrementing token in my mySQL database) of an account when authenticating with user token? (...
1
vote
2answers
130 views

Invalidate API tokens when LDAP user is invalid

I'm using oauth2 and LDAP for authorization and authentication of an API. Authentication flow is given below. User sends LDAP username and password (with password grand type) to the server. Server ...
1
vote
1answer
81 views

Why is PKCE secure against man-in-the-middle attacks?

In attempting to implement OAuth2 into a natively installed client application, we face the problem that we cannot securely store the pre-shared client secret. After doing some research, I came across ...
1
vote
4answers
795 views

How to prevent self-XSS?

I am creating a website which solely uses REST api for all the features and functionality, from signup and login to fetching data and populating the webpage using Mustache as template engine for ...
1
vote
0answers
28 views

Is having multiple access tokens valid at the same time a security risk?

I run an API that allows multiple access tokens (JWT) to be valid for the same account, in order to allow users to sign into the web application and mobile app at the same time. Is this a potential ...
0
votes
0answers
42 views

Secure Personal Information for Restful API

I need to implement a web application for user to update personal information. It consists of a page listing masked personal information and then a button which allows user to edit & update them. ...
0
votes
1answer
37 views

Secure Exchange Rate for Restful API

I need to implement a web application for user to exchange money. The application needs to invoke API #1 to retrieve exchange rate and show it on the screen for confirmation. And then invoke another ...
12
votes
2answers
16k views

JWT token login and logout

Hi I am creating mobile native application that uses REST API endpoints to communicate with server side. I have had previous experience developing native clients, but I have simple token (random ...
0
votes
1answer
75 views

Subdomain api.domain.com - more vunerable to attacks?

I am in the process of setting up an api which will have the subdomain "api.", I have been advised to change this to something "less obvious" to avoid automated attacks against it. I can't find any ...
5
votes
2answers
3k views

What is the difference between API keys and API tokens usages?

From all the research that I have done, I have found that API keys are less secure than access tokens (under usage of oAuth), and should only be used for monitoring purposes. But from what I ...
0
votes
1answer
76 views

What are the industry guidelines on sharing secrets like API or access token?

I'm currently looking for guidelines on sharing API tokens or Access tokens securely, for integrating a third-party application with my own. The two methods I'm currently thinking of are: PGP: I ...
4
votes
4answers
287 views

Public API security: authentication vs. rate limiting etc

We are raising a SaaS product that allows businesses to setup and orchestrate selling of a certain class of goods/services. This product has an API in its core and an ecosystem of various apps around ...
-1
votes
1answer
48 views

How do I detect spoofed REST API responses in my webapp?

I am building an internal admin panel for my team that will communicate to the backend server using a REST API. One of the API calls that will be performed will be an "authorization check" where the ...
1
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0answers
43 views

Are there any flaws with allowing SQL queries as part of an API to fetch data? [duplicate]

We're working on an API to allow clients access to bits of data from a series of tables. We've come up with a JSON based API which works well but it could definitely be improved upon. It has come to ...
0
votes
1answer
941 views

How I can enumerate all endpoints of an API?

Let's say I have an API api.example.com and I want to test all endpoints. I don't have access to documentation, how I can enumerate all the endpoints?
2
votes
1answer
58 views

What's stopping attackers from using our API keys to spam our logging services?

We're logging user events using Javascript and a third-party logging service. The API key is hardcoded in JS. The logging service restricts the API key to our domain. I'm assuming it looks at the ...
1
vote
0answers
262 views

How to secure an API key from client side?

I'm having an issue and I'm pretty sure I'm not the first on that. I'm hoping to have a few great ways, hopefully bulletproof, to avoid any issues, so here it is. I provide an API that converts HTML ...
5
votes
3answers
154 views

Rate Limiting An API

I am busy developing an API for a mobile application, currently one of the endpoints require that the users username and password be POST'ed to it. What I am worried about is someone discovering that ...
0
votes
1answer
92 views

Hiding the “Allow” http header that comes with the response after an 405 API call

Hi so our security team said that we need to hide the Allow header Is the request possible?
3
votes
3answers
213 views

Encoding output in JSON HTTP API

I'm the author of a JSON REST API. This REST API is consumed by various clients, such as HTML/JS-clients, .NET clients (console applications) and Ruby clients. The output of the API is in JSON format, ...
2
votes
1answer
80 views

Big insurance website exposing StackTrace of Java JSON Parser

Recently I coincidentally have discovered that an api endpoint of an insurance company is sending a StackTrace of a JSON parser as response to a http POST message with bad formatted JSON in the ...
1
vote
0answers
20 views

Securing internal API credentials on a public chrome extension

I've developed a Chrome extension that I plan to publish to the Chrome Web Store. On the server side, I've implemented OAuth 2 (using access tokens and refresh tokens) with support for generation of ...
13
votes
2answers
2k views

What is PKCE actually protecting?

I'm trying to get my head around how PKCE works in a mobile app and there's something I don't quite understand. So from what I can gather the client app creates a random cryptographically secure ...
2
votes
1answer
81 views

Unauthorized API Access Without Key Header

In order to test the security of my API, I want to act as sort of an attacker in order to try and gain access to my own API without an API key. In order for me to send requests to this endpoint, I ...
3
votes
1answer
300 views

How to securely store 3rd party API keys directly on web server

I'm building a private web app that I plan to use between myself and a few select friends. Each of us have API keys for a 3rd party service that my web app needs to access so it can call the 3rd party ...
1
vote
0answers
27 views

Is it safe for a service to share memory addresses with remote clients?

Supposing a remote service has the following data structures (using C++ as an example): struct Item { std::string name; struct {} whatever_else; }; std::map <std::string, Item *> ...
1
vote
1answer
112 views

CORS accepting arbitrary origin with GET but not with OPTIONS

I'm testing an API, which allows an arbitrary origin on POST/GET requests, by responding with the CORS header Access-Control-Allow-Origin: *. However, with OPTIONS requests and an arbitrary origin, ...
1
vote
1answer
1k views

Access-Control-Allow-Origin wildcard doesnt allow sending session cookies

I always thought CORS restrictions was to disable the following scenario: I enter attacker.com, JS sends GET facebook.com, my browser adds my cookies, attacker.com has access to my facebook profile/...
59
votes
7answers
9k views

Is exposing the server time a security risk?

If I create a servlet that would return the server time publicly (no need for authentication), would this be a security issue? I couldn't think of any issue with this, but somehow something tells me I ...
2
votes
1answer
198 views

Why do we use Oauth2 instead of Basic Auth in server to server communication using SSL?

Why do some API providers ask you to implement Oauth2 in server to server communication that's available only over HTTPS? In the frontend (app or webapp), Oauth2 is useful to protect the user ...
1
vote
1answer
102 views

AES Encryption is this overcomplicated encryption?

I'm working with a vendor's API and it recommends the following steps for transmitting an encrypted value: 1) Convert the encryption password to a byte array. 2) Convert the value to be ...
0
votes
0answers
76 views

How to properly store OAuth 2.0 client_id and client_secret in a web application?

In the PoC (Proof of Concept) that I'm currently developing, data from an API is consumed and OAuth 2.0 is required for authentication. The application is already working as expected, the users are ...
0
votes
3answers
197 views

Is it better to rate limit API requests based on UserId or IP address for authenticated users?

I'm thinking of rate limiting anonymous requests based on IP, but for users with a valid authentication token, I can't decide if it's better to log and rate limit requests based on their UserId or IP ...
0
votes
0answers
17 views

implementing push api for files using oauth2

i want to implement a push api similar to Garmin Connect API. this api allows the clients to get the data of garmin users, as garmin will push to the clients the user's files whenever created. we ...
4
votes
1answer
85 views

How do I implement a Microsoft Login into my own website? [closed]

I am trying to make a website, which hosts a form for employees to enter their shift details into. The website itself is pretty basic, meaning it is mostly just HTML and PHP code. Obviously I need to ...
2
votes
2answers
96 views

How to protect API endpoint from abuse in mobile App?

Let's assume I have a mobile app that fetches the news feed from an url on my server. GET/ https://example.com/api/v1/newsfeed Is there a way to restrict the access to this endpoint to only from ...
0
votes
1answer
314 views

What all test cases/vulnerabilities we need to try in REST API Pen testing?

I am learning API pen testing and looking for resources which will give clear list of test cases we need to check while performing a Pen testing on REST API. I have gone through the OWASP resources ...
1
vote
1answer
47 views

Protect app from Http Proxy like Charles [duplicate]

I am using https request for web API in my app. But I know Charles allowed to access https request also, via install root certificates on device. So, someone downloaded the app from PlayStore and ...
10
votes
2answers
2k views

Public API with authorization token — is it possible to protect the demo token?

I have a REST API for running some calculations and returning the result, with a very simple token system where only authorized users can use the API. The user adds their token to the query like this:...