OAuth is an open standard for authorizing access to data. It is a service that is complementary to, but distinct from, OpenID.

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2answers
1k views

Essential things to think about before outsourcing authentication with OpenID, OAuth, or SAML

It's clear there there is no consistent set of features among any of the popular authentication providers. Below is an attempt to aggregate the similarities and differences I've noticed, but I ...
9
votes
1answer
578 views

Is logging in using OAuth/OpenID also vulnerable to heartbleed?

If one has logged into a "heartbleed-vulnerable" site using OpenID, for example, using Google to log into StackExchange, does that mean that the Google password is now at risk as well?
40
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9answers
3k views

Isn't OAuth, OpenID, Facebook Connect, and others crazy from a security standpoint?

I work with APIs all the time and I work with web developers who insist that OAuth, OpenID, etc are far superior than a home-brew method. Every site seems to be using these as well now for ease of use ...
6
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2answers
2k views

What is the purpose of OAuth 2.0 redirect_uri checking?

The OAuth 2.0 specification's authorization code mechanism includes redirect URI checking from the site you redirect to. See steps D and E in section 4.1 of the spec. Also, section 4.1.3 describes in ...
39
votes
5answers
7k views

What are the downsides of BrowserID/Persona compared to OpenID/OAuth/Facebook?

Mozilla went live with a new service called BrowserID/Persona (announcement, background). It is intended to replace current single-sign-on solutions such as OpenID, OAuth and Facebook. One advantage ...
16
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4answers
5k views

Why use OpenID Connect instead of plain OAuth?

I just started to use OAuth 2.0 as a way to authenticate my users. It works great - I just use the identity/profile API of each provider to get a validated email address of the user. Now I read about ...
9
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4answers
2k views

Is Facebook Connect or Twitter OAuth PCI Compliant?

We have a system that stores credit cards securely on file. We'd love to allow users to sign up using Facebook Connect or Twitter. Obviously this wouldn't be secure if we were trusting just any old ...
6
votes
2answers
2k views

Security drawbacks for using short-lived access token in javascript client side

I intend to build a front end site entirely in javascript (NodeJS) and i would like to do ajax calls to a REST WS which is on another domain on client side. I intend to use oauth2 and SSL to secure ...
5
votes
1answer
954 views

Is it safe to store twitter access tokens client side?

After the Twitter oauth process, once I finally get my access_token_key and access_token_secret is it safe to store these in a javascript variable client side? As far as I can work out nothing can be ...
4
votes
1answer
576 views

Does returning `Access-Control-Allow-Origin: *` weaken the security of JSON GET responses?

The W3C CORS recommendation states: Certain types of resources should not attempt to specify particular authorized origins, but instead either deny or allow all origins. ... 3. A GET ...
2
votes
1answer
248 views

Facebook iOS SDK Authentication

The Facebook iOS SDK only needs your bundle & app IDs of your iOS app to match those of your Facebook app. If I find out an app's app ID, can't I just create another iOS app with that app's ...
2
votes
2answers
200 views

Does providing OAuth for mobile apps pose a security threat?

Let's take a look at the basic OAuth workflow: The basic idea is that the Consumer (App) asks the user to grant him access to the Service Provider. The service protects the user by asking him each ...