I am trying to build authentication system through ASP.NET MVC. I am using Identity Server 4 for authentication. I have already implemented user id and password validation through ResourceOwner.
Now I am trying to implement smart card authentication. When I try to read X509Certificate2 in debug mode, I am able to read the client certificates but when I deploy the application to IIS, I am unable to read the certificate.
I want to accept client certificate on my Identity Server hosted on IIS when request is sent to Identity Server 4 from client ASP.NET MVC. My Identity Server 4 project type is .NET Core on .NET Framework.
I have already tried this:
Installed authorized SSL certificate on IIS
Added HTTPS binding to my identity server 4 app pool with valid port number.
Enable SSL for the identity server site and set to accept client certificate.
I got the client certificate in Identity Server 4 as below but it was without private key :
var clientX509Certificate = new X509Certificate2(this.HttpContext.Connection.ClientCertificate);
Related
I have an asp.net mvc app that needs to access a backend api and several services that is using self signed certs. Have no control over forcing client to use proper certs.
On my development environment, i am installing the self signed certs on Trusted Root Certificates to have it work.
However, I am facing SSL certification error when connecting to those services after publishing the asp.net mvc app to azure app services but I am unable to find a way to overcome this.
Is there any way that I can overcome this challenge like installing self sign cert on azure app services? I would not like to ignore ssl error in code level if possible as this would require changes on multiple part in code.
Limitation:
Production Backend API and other services provided by client is using self signed cert
The asp.net mvc app must be hosted on azure app services provided by client
Answering based on your requirements that you only need to connect to a private endpoint that has a private cert (your app service can have a public endpoint).
Try to follow the guide outlined here to first upload the private certificate chain: https://learn.microsoft.com/en-us/azure/app-service/configure-ssl-certificate#upload-a-private-certificate (make sure to include the whole chain).
Once you upload the private cert, follow this guide to access it from your code: https://learn.microsoft.com/en-us/azure/app-service/configure-ssl-certificate-in-code
From there you should be able to use the certificate as needed within your code.
We have a web app in Azure that needs to call a site in our on-prem location, we have configured Azure Relay and it works fine for HTTP if we use HTTPS we get
Could not establish trust relationship for the SSL/TLS secure channel with authority
Error Status 500 - Internal Server Error. URL
Does the web site on the internal site need to use a public cert rather than an internal one from our CA?
If you are using Azure Web Apps to host your web application (let it be an ASP.NET MVC web app) you do not have the possibility to set up the IIS behind the Azure Web App to accept client certificates through an HTTPS connection. My application has some Web API endpoints that would be only accessible if the user has the correct certificate with the allowed thumbprint. However, I have other endpoints as well (and of course the website) that would be accessible without a client certificate. So in my case the only way is to accept client certificates.
I am not sure about that, but if I know well I can still get the client certificate by using OWIN while the SSL Settings in IIS is set to Ignore. If I use OWIN and go through the OWIN environment I can see a key called ssl.LoadClientCertAsync.
I am implementing endpoints that a third-party service will call, so I have no control over the content of the request. I know that there is a ssl.ClientCertificate key, with type X509Certificate, but in my case this key doesn't exist.
I have found some C# solution about using this ssl.LoadClientCertAsync key to get the certificate like in the CheckClientCertificate method of Katana or the solution in this C# Corner article. In every solution that I can find in the net, the author gets this type as a Func<Task> and then calls this task, by for example using the await operator.
var certLoader = context.Get<Func<Task>>("ssl.LoadClientCertAsync");
if (certLoader != null)
{
await certLoader();
...
After that they retrieves the certificate by using the ssl.ClientCertificate key.
var asyncCert = context.Get<X509Certificate>("ssl.ClientCertificate");
In this example, my asyncCert variable is always null. There weren't any ssl.ClientCertificate key in the OWIN context. I have tried to use the X509Certificate2 instead of X509Certificate, but I still got null.
My question is is it possible to get the client certificate in an Azure Web Site while the default SSL setting is Ignore by using OWIN? If yes, why can't I get the certificate using the ssl.LoadClientCertAsync key?
According to your description, I have created my ASP.NET MVC web application for working with client certificate in OWIN to check this issue. The following code could work on my local side:
if (Request.GetOwinContext().Environment.Keys.Contains(_owinClientCertKey))
{
X509Certificate2 clientCert = Request.GetOwinContext().Get<X509Certificate2>(_owinClientCertKey);
return Json(new { Thumbprint = clientCert.Thumbprint, Issuer = clientCert.Issuer }, JsonRequestBehavior.AllowGet);
}
else
return Content("There's no client certificate attached to the request.");
For SSL Settings set to Accept, I could select a certificate or cancel the popup window for selecting a certificate.
AFAIK, we could enable the client certificate authentication by setting clientCertEnabled to true and this setting is equivalent to SSL Settings Require option in IIS.
As How To Configure TLS Mutual Authentication for Web App states about accessing the Client Certificate From Your Web App:
If you are using ASP.NET and configure your app to use client certificate authentication, the certificate will be available through the HttpRequest.ClientCertificate property. For other application stacks, the client cert will be available in your app through a base64 encoded value in the X-ARR-ClientCert request header.
My question is is it possible to get the client certificate in an Azure Web Site while the default SSL setting is Ignore by using OWIN?
AFAIK, the current SSL Settings for client certificates only supports Ignore and Require for now. When hosting your web application on azure web app, for the client users who access your azure web app with client certificate authentication, they could specify the certificate to a base64 encoded value as your custom request header when sending request to your azure web app, then your could try to retrieve the header and verify the cert if the cert custom request header exists. Details, you could follow this sample.
Additionally, you could use Azure VM or Azure Cloud Service instead of azure web app, at this point you could fully control the SSL Settings in IIS.
I need to configure 'Client certificate authentication' in Glassfish 3. I tried many scenarios but couldn't configure. The requirement is - the user who imported the .cer file can alone access the application.
So we need to configure in such a way that we need to validate the .cer file that is uploaded into the browser (through which the client is trying to access the application).
Once the certificate file is validated, then we need to show the login screen (form-login). Further we validate the username/password of the user.
I tried several configuratiosn (in applicationCOntext-security.xml file) but in vain.
Can anyone tell how to configure spring security so that both the client certicate authentication (done first) and then the form-login (done next)?
Spring does not do SSL its Glassfish that is setting up the SSL connection. By the time the request has arrived in Spring security all spring security knows is that the request came in over a secure channel but does not know how the secure channel was configured.
To setup client certificate authentication you need to configure glassfish to require a client side certificate to setup the SSL connection and to refuse the connection if the client does not provide a valid certificate.
This way you will get the behavior you want if the client does not present a valid certificate to glassfish glassfish never routes the call to spring.
I do know how to setup client side ssl authentication with glass fish so I can't help you with exact details, but google should know the answer.
I have been using jasig .net cas client. I have setup cas server on my local computer which can be assessed using https://localhost:8443/cas-server-webapp-3.4.12/login
I have set authorize attribute on Account controllers logon action.
i am following everything given in this url https://wiki.jasig.org/pages/viewpage.action?pageId=32210981
when i run the application, it does go to cas login page but after authentication it returns with http://localhost:1672/ and then in browser it gives error as "The page isn't redirecting properly".
i don't know how i am getting this error, everything is setup properly in web.config.
Please help
when i use http://localhost:8080/cas-server-webapp-3.4.12/login (non secure url) instead of https://localhost:8443/cas-server-webapp-3.4.12/login(secure url) it works.
I think i have a problem with self signed certificate. Is it possible to create valid certificate and use it. At least i should try creating a valid certificate and try. But i don't know how to create valid certificate. Please also tell me how to create valid certificate. I tried google but not successful to find how to create valid certificate so that browser doesn't display "self signed certificate error".
For my own experience, other than getting the self-signed cert to work:
I have to install the self-signed cert from the SSO server to my Windows 2008 Server hosting the webapp).
Install the certificate under Trusted Root Cert Authorities on BOTH the user account and the machine account.
You can do this under MMC and then Add the certificate Snap-in.
Test your setup using IE to browse to the sso server in question.You should not see anymore warnings about the cert. Remember use IE to check, other browser does not seem to care about the Trusted Root Cert setup.
Next, when deployed the ASP MVC, I have to use classic Application Pool and
for my cas config setup in web.config leave both the proxyTicketManager and the gatewayStatusCookieName as empty string.
I am connecting directly to the sso server so these two be taken out, or else protocol error and infinite loop.
Then no more infinite redirect loops complains.
I found what the problem was. When we are using secure connection we need to have SSL certificate on both side, at CAS server side and at our webapplication side.
so at CAS server side it has to be
https://localhost:8443/cas-server-webapp-3.4.12/login
and at our web application side it has to be
https://servername/mywebapp
If you are using a self-signed certificate be sure that the server running CAS trusts the certificate of the web application.
you should specify the return url after success login in the web.config (just the server not the entire url)
example: you app is on http://localhost:8080/someWebApp/
when you go to the login page, you can see on the query string parameter the return url encoded
<casClientConfig casServerLoginUrl="https://localhost:8443/cas-server-webapp-3.4.12/login"
casServerUrlPrefix="https://localhost:8443/cas-server-webapp-3.4.12/"
serverName="http://localhost:8080"
notAuthorizedUrl="~/notAuthorized.html"
cookiesRequiredUrl="~/CookiesRequired.html"
redirectAfterValidation="true"
renew="false"
singleSignOut="true"
ticketValidatorName="Cas20"
serviceTicketManager="CacheServiceTicketManager"/>