The document corresponding to Istio End User Authentication states that
If jwksUri isn’t set, make sure the JWT issuer is of url format and url + /.well-known/openid-configuration can be opened in browser,
End User Authentication Istio
I want to build a JWT Server which serve this requirement for Istio, and can be used as a centralized Authentication Server(SSO) for my micro service based architecture.
Putting it simply, i want to create a centralized JWT issuer which i can use with Istio, kindly refer some resources that i can go through to achieve the same.
you can also refer the link below to have some understanding of my requirement, its same
Central JWT authentication / authorization service
I just want to know how to create JWT Issuer, which can work with Istio, by simply passing the jwksUri as described in the document for Istio End User Authentication
Example
jwksUri: "https://www.googleapis.com/service_accounts/v1/jwk/628645741881-noabiu23f5a8m8ovd8ucv698lj78vv0l#developer.gserviceaccount.com"
To create a centralized authentification server yourself is a long and error-prone process that you can avoid by using an open source solution, like Keycloak or IdentityServer.
An example of using KeyCloak with Istio can be found in the RedHat Istio Tutorial.
You can also use an Authentification as a Service like Auth0, Okta, Azure B2C etc, and all of those are OpenId Connect Conformant (list of conformant services)
Related
I have multiple sub-domains listed in a SaaS app. The app provides options to configure SSO with Onelogin, however it provides the option to Enter only one SAML Endpoint(to which users will be redirected) and One certificate.
In this specific case with Onelogin, the certificate with One login is same across different apps that are setup at Onelogin, however each app has a different SAML endpoint. This makes it impossible to configure SSO with multiple sub-domains of the SAML app.
Tried using SAML Connectors (Advanced) in Onelogin, however when multiple connectors are setup each still has a different SAML endpoint.
Any help in configuring an app in Onelogin using same SAML Endpoint would be very helpful.
You're at the mercy of your SP here. If it only supports one IdP, then there's nothing you can put in place in Onelogin to mitigate that. To extend #todaynowork's answer above, the RelayState parameter might be of use to you but your SP will need to support it. The RelayState parameter allows the SAML request to include the resource your user was initially requesting. When the SAML response is verified at the ACS URL, you can then use the RelayState parameter to redirect the user to their requested resource across any of the subdomains. Assuming your SP side sessions are consistent across all subdomains, that could work for you.
Suggest you use the SP initial SSO. That support deep link. Deep link means you could pass the return url while you do auth request. After success login, it will return to 'return url' you passed.
I need to implement an Identity provider service (using node.js) that should be able to.
Get, validate and parse (using private key and cretificate) the authentication request from SP example
If everything is valid, respond with a signed XML response example
Is there a tool in node.js that can handle the IdP side of SAML protocol. i'm familiar with samlify, saml2, passport-saml, and all of them seem to handle the Service provider side of the protocol.
If the packages mentioned here can serve to my needs, could you specify how exactly they handle this.
Any other directions and/or hints may be helpful.
Thanks
This is what my research say about this modules .
Passport-saml - Provider service provider only
Saml2-js - Provide service provider
Samlify - Idp in experimental phase , You can check idp implementation here. https://github.com/tngan/samlify/blob/f2b6a2f8c36dc0ff887d0442c48cd0f2c0a4a778/examples
Node-samlp - IDP which provide saml assertion but user authorization we need to do our own
Saml-idp - It says IDP we can create but again it refer to online IDP
I have used samlify to make my existing node js application as identity provider to third party service provider.
It has many configuration options. Intially it took time to successfully implement.
I have a scenario where I have to let external systems have access to one of our internal API's.
The security team want the externals to use client certificates as the preferred authentication method, so that basically leaves us two options:
Use direct client certificate authentication. It will give us the most control, but that will leave all the certificate handling and validation in our hands, and I'd rather not do that if I have a choice. Besides - direct client certification auth does not play well with our existing authentication methods on that API. If you turn on client certificates on the App Service, you will require a certificate on every request (and most requests on that API use cookies)
Add key credentials to the Azure AD app. We'd rather not give access directly to the app the API is registered on, so we register a OUR-APP-EXTERNAL and set up a trust relationship between the two. So the client authenticates with a certificate to the "external app", gets a bearer token and use that on our API. I'd prefer to use this solution, and it seems to play nicely with everything else.
So far so good - but I'm worrying about scaling this. We have to separate the external clients somehow (each client will in effect be different systems in different companies). One strategy is to create one AD-app per external system (OUR-APP-EXTERNAL-SYSTEM-A), but it seems cumbersome and somewhat spammy. One quick and easy solution would be to add some metadata from the client's authentication certificate (where we could just set what system this cert is issued to during creation), and add that to the bearer token.
Is this possible? Or are there other ways to handle "multi tenant" external clients?
Thanks
Consider an option of using Azure API Management for your scenario. API Management provides the capability to secure access to APIs (i.e., client to API Management) using client certificates. Currently, you can check the thumbprint of a client certificate against a desired value. You can also check the thumbprint against existing certificates uploaded to API Management.
Follow this guide - How to secure APIs using client certificate authentication in API Management
Also you can create multiple Azure AD Application for different clients and provide provide required roles to each of these Azure AD application to Azure AD Application registered to secure Internal API.
Follow this guide for this approach - Protect an API by using OAuth 2.0 with Azure Active Directory and API Management
I'm reading a tutorial provided by AWS explaining how to break up a monolithic NodeJS application into a microservice architectured one.
Here is a link to it.
One important piece is missing from the simple application example they've provided and that is user authentication.
My question is, where does authentication fit into all this?
How do you allow users to authenticate to all these services separately?
I am specifically looking for an answer that does not involve AWS Cogntio. I would like to have my own service perform user authentication/management.
First, there is more than one approach for this common problem.
Here is one popular take:
Divide your world to authentication (you are who you say you are) and authorization (you are permitted to do this action).
As a policy, every service decides on authorization by itself. Leave the authentication to a single point in the system - the authentication gateway - usually combined inside the API gateway.
This gateway forwards requests from clients to the services, after authenticating, with a trusted payload stating that the requester is indeed who they say they are. Its then up to the service to decide whether the request is allowed.
An implementation can be done using several methods. A JWT is one such method.
The authenticator creates a JWT after receiving correct credentials, and the client uses this JWT in every request to each service.
If you want to write your own auth, it can be a service like the others. Part of it would be a small client middleware that you run at all other service endpoints which require protection (golang example for middleware).
An alternative to a middleware is to run a dedicated API Gateway that queries the auth service before relaying the requests to the actual services. AWS also has a solution for those and you can write custom authentication handlers that will call your own auth service.
It is important to centralize the authentication, even for a microservices approach for a single product. So I'm assuming you will be looking at having an Identity Service(Authentication Service) which will handle the authentication and issue a token. The other microservices will be acting as the service providers which will validate the token issued.
Note: In standards like OpenID connect, the id_token issued is in the format of JWT which is also stateless and self-contained with singed information about the user. So individual Microservices doesn't have to communicate with the authentication service for each token validation. However, you can look at implementing or using Refresh tokens to renew tokens without requiring users to login again.
Depending on the technology you choose, it will change the nature how you issue the tokens and validate.
e.g:
ExpressJS framework for backend - You can verify the tokens and routes in a Node Middleware Handler using Passport.
If you use API Gateway in front of your Microservice endpoints you can use a Custom Authorizer Lambda to verify the tokens.
However, it is recommended to use a standard protocol like OpenID connect so that you can be compatible with Identity Federation, SSO behaviors in future.
Since you have mentioned that you are hoping to have your own solution, it will come also with some challenges to address,
Password Policies
Supporting standards (OpenID Connect)
Security (Encryption at rest and transit especially for PIDs)
SSO, MFA & Federation support etc.
IDS/IPS
In addition to non-functional requirements like scalability, reliability, performance. Although these requirements might not arise in the beginning, I have seen many come down the line, when products get matured, especially for compliance.
That's why most people encourage to use an identity server or service like Cognito, Auth0 & etc to get a better ROI.
I'd like to preface this by saying that until now, I hadn't even HEARD of SAML, much less developed a SSO strategy involving it. That, combined with the fact that I've barely been doing node for a year makes for a glorious newbie sandwich. Currently, I have a client who uses SAML and ADFS as their SSO provider. I am already using passport.js for local logins, so using passport-saml seems to be the way to go to implement the SSO using SAML/ADFS. In doing my research, I've found a couple different implementation guides, but since I literally know NOTHING about this process, I could use a few pointers.
In the passport-saml documentation, I found the following for a strategy proven to work with ADFS (according to the docs):
{
entryPoint: 'https://ad.example.net/adfs/ls/',
issuer: 'https://your-app.example.net/login/callback',
callbackUrl: 'https://your-app.example.net/login/callback',
cert: 'MIICizCCAfQCCQCY8tKaMc0BMjANBgkqh ... W==',
identifierFormat: null
}
I suppose my main question is where does this cert come from? Is this a cert I generate on my server via SSL? Does the provider provide it?
In my searching, I have also found this: https://github.com/auth0/passport-wsfed-saml2, which is based on passport-saml. The following configuration is suggested for ADFS:
{
path: '/login/callback',
realm: 'urn:node:app',
homeRealm: '', // optionally specify an identity provider
identityProviderUrl: 'https://auth10-dev.accesscontrol.windows.net/v2/wsfederation',
cert: 'MIIDFjCCAf6gAwIBAgIQDRRprj9lv5 ... ='
}
In this example, the path object is obvious, and my provider has already given me an providerURL. But realm makes no sense to me, and there's that darn cert again.
Could someone provide me with an "explain-like-i'm-five" way of implementing SAML/ADFS SSO in a node.js site? Or help me make heads or tails of the argument objects requested by the two solutions I've outlined? Much appreciated in advance!
I recently went through the same thought process: having never heard of SAML, I needed to enable a web application to authenticate via SAML with OneLogin as the identity provider (instead of Active Directory).
During implementation, I made heavy use of OneLogin's documentation and the passport-saml library, both of which I recommend, though I'm not affiliated with either.
What I came to realize was that the confusion was three-fold:
(1) how SAML works,
(2) how the passport-saml library works in Node, and
(3) how to configure the identity provider (OneLogin, Active Directory, or otherwise). What follows is my attempt at an "explain-like-I'm-five" explanation.
SAML
Security Assertion Markup Language (SAML) is an XML standard that allows users to log in based on their browser session. There's a lot to it, but basically, it enables a simpler authentication process. A user can click a button rather than submit a form with username and password.
The way SAML works is a little more involved. I found this overview from OneLogin and the accompanying diagram helpful:
The diagram represents the following process:
User clicks a button to authenticate for a given application (sometimes called service provider) using SAML. A request is made (to Node or otherwise) to build a SAML authorization request.
An authorization request is constructed. This authorization request is XML (see more on OneLogin), encoded and/or encrypted, and appended to a URL as a query param. Node redirects the browser to this URL (something like https://domain.onelogin.com/trust/saml2/http-post/sso/123456?SAMLRequest=...encodedXML...).
OneLogin, as identity provider, determines from the browser session whether the user is already logged in. If not, the user is prompted with OneLogin's login form. If so, the browser POSTs a SAML response back to the application (service provider). This SAML response (again XML) includes certain properties about the user, like NameID.
Back in Node, the application verifies the SAML response and completes authentication.
Node and passport-saml
Passport.js is authentication middleware for Node. It requires a strategy, which could be something like passport-local or, in our case, passport-saml.
As the passport-local strategy enables Passport authentication using username/password, the passport-saml strategy enables Passport authentication using the browser session and configurable identity provider values.
While passport-saml served my purposes really well, its docs were difficult to reason through. The configuration example doesn't work due since the OpenIdp identity provider is inactive and there are lots of configurable parameters.
The main one I cared about: entryPoint and path (or callbackURL). I only needed these two, which do the following:
entryPoint is the URL to redirect to with the authorization request (see #2 above).
path/callbackURL set the URL/route in Node for the SAML response to be POSTed to (see #3 above).
There's a ton of other parameters that are important and valuable, but it's possible to configure SAML SSO using just these two.
Identity Provider configuration
Finally, the identity provider itself needs to be configured so that, given a SAML authorization request, it knows where to send the SAML response. In the case of OneLogin, that means setting an ACS (Consumer) URL and an ACS (Consumer) URL Validator, both of which should match the path/callbackURL configured for passport-saml.
Other things can be configured (to support logout and other features), but this is the bare minimum to authenticate.
Summary
There were two parts to the original question: (1) how to implement SAML/ADFS integration and (2) high-level SAML node.js implementation guide. This answer addresses the second.
As for specifically integrating with Active Directory, I recommend passport-saml's docs on ADFS, keeping in mind that there's two parts: configuring passport-saml to use an ADFS identity provider AND configuring your ADFS server to respond back to Node.
I could be wrong here but I believe it comes from the ADFS servers XML found at https://servername/FederationMetadata/2007-06/FederationMetadata.xml.
Pull out the X509Certificate. I have the same issues going on and I'm going to try that next.
As for the first part of your question, the certificate comes from the provider. Please have a look at the passport-saml documentation.
Simply pull out the Identity Provider's public signing certificate (X.509) and make sure to format it to the PEM encoding. The correctly formatted PEM-encoded certificate will begin with -----BEGIN CERTIFICATE----- and end with -----END CERTIFICATE-----.