Can OAuth be used for SSO?

OAuth is one of the most common methods used to pass authorization from a single sign-on (SSO) service to another cloud application, but it could be used between any two applications.

Why is oauth2 bad?

The threat worth mentioning, which is actually indepentent form the grant type is the Cross Site Request Forgery (CSRF). If you do not protect your OAuth implementation from CSRF, the attacker can return fake data from API to your users. It is important to secure OAuth against CSRF attacks with the state parameter.

What is one benefit that OAuth provides over an API key approach?

However, OAuth provides several improvements over API keys. For starters, access tokens can be tied to particular scopes, which restrict the types of operations and data the application can access. Also, combined with refresh tokens, access tokens will expire, so the negative effects could have a limited impact.

Why you should stop using the OAuth implicit grant?

Simply put, the implicit grant’s security is broken beyond repair. It is vulnerable to access token leakage, meaning an attacker can exfiltrate valid access tokens and use it to his own benefit. They must be redeemed for tokens in a direct HTTPS-secured request with the authorization server’s token endpoint.

Is OAuth more secure than SAML?

OAuth, or Open Authentication, is also an AuthN/AuthZ protocol used for secure authentication needs. OAuth is more tailored towards access scoping than SAML. Access scoping is the practice of allowing only the bare minimum of access within the resource/app an identity requires once verified.

Can SAML and OAuth work together?

Can you use both SAML and OAuth? Yes, you can. The Client can get a SAML assertion from the IdP and request the Authorization Server to grant access to the Resource Server. The Authorization Server can then verify the identity of the user and pass back an OAuth token in the HTTP header to access the protected resource.

Why is basic auth bad?

Using basic authentication for authenticating users is usually not recommended since sending the user credentials for every request would be considered bad practice. The user has no means of knowing what the app will use them for, and the only way to revoke the access is to change the password.

Is OAuth more secure than API keys?

API Key can be an easy way to enforce some authentication. OAuth is more sophisticated with more options but also needs more knowledge to get implemented correctly, not only on the client but also on the server-side.

What is the advantage of OAuth2?

Integrating OAuth 2.0 into your app has several benefits: It allows you to read data of a user from another application. It supplies the authorization workflow for web, desktop applications, and mobile devices. Is a server side web app that uses authorization code and does not interact with user credentials.

Should you implicit grants?

In order to avoid these issues, Clients SHOULD NOT use the implicit grant and any other response type causing the authorization server to issue an access token in the authorization response. It is vulnerable to access token leakage, meaning an attacker can exfiltrate valid access tokens and use it to his own benefit.