I am running IIS 8.5 on a Windows Server 2012 R2. I have configured a WebAPI (built on ASP.net) web site to use HTTPS (self-signed) with IIS Client Certificate Mapping for client certificate authentication. I am using the ManyToOneMapping where I have defined one local account to be associated to the client certificate with the incoming request. Furthermore, I have defined a Rule in the mapping so that if the "Subject" field in the certificate contains a certain string then it should allow the request.
Now, when I hit the url in the API application, Firefox prompts me to select the certificate to be used (as expected). And when i select one of the certificates that does not contain that string defined in the mapping Rule, the browser is still served with the resource. I was expected a forbidden response instead. So, it would appear that the Client Certificate mapping is not working as expected.
As I am new to IIS, I am wondering how I could go about to find out how to troubleshoot this situation. Thanks in advance.
Here is snippet from the applicationhost.config file:
<location path="SimpleApi" overrideMode="Allow">
<system.webServer>
<security>
<authentication>
<iisClientCertificateMappingAuthentication enabled="true" oneToOneCertificateMappingsEnabled="false">
<manyToOneMappings>
<add name="Authorized Access" description="Some long description" userName="SomeUser" password="[enc:AesProvider:removed:enc]">
<rules>
<clear />
<add certificateField="Subject" certificateSubField="OU" matchCriteria="Admin" />
</rules>
</add>
</manyToOneMappings>
<oneToOneMappings />
</iisClientCertificateMappingAuthentication>
</authentication>
</security>
</system.webServer>
</location>
<location path="SimpleApi">
<system.webServer>
<security>
<access sslFlags="Ssl, SslNegotiateCert, SslRequireCert" />
</security>
</system.webServer>
</location>
The only possibility is you have other authentication mechanism enabled for your website and it is simply falling back to that authentication mechanism.
Check the Authentication module for your website in IIS and disable all other authentication mechanism.
Related
I have one server, which allows users to host their web app free of cost.
In server I have 4 different pools.
2 pools are for .Net Framework,
1 pool is for .Net MVC,
1 pool is for .Net Core 3.1
Each pools has 50+ appliations.
For security testing I have created one program, Which takes fullpath/location of file and read that file form IIS server. If any user upload that type of code in my server then they can assess any files.
Now, that is the issue with my server.
Now, I want to do, My users can access only their application resources not other's too.
But, I don't know how to do this.
In order to restrict users to access files in IIS, we could refer to the below configuration in root web.config file.
<location path="myfolder">
<system.webServer>
<security>
<authorization>
<remove users="*" roles="" verbs="" />
<!--for authentication, we should enable either windows authentication or form authentication in IIS authentication module.-->
<add accessType="Allow" roles="Administrators" />
</authorization>
</security>
</system.webServer>
</location>
It will restrict everything under Myfolder. In particular, rule out a specific file.
<location path="my.jpg">
<system.webServer>
<security>
<authorization>
<remove users="*" roles="" verbs="" />
<add accessType="Allow" roles="Administrators" />
</authorization>
</security>
</system.webServer>
</location>
Feel free to let me know if there is anything I can help with.
I am trying to verify my domain through Azure using this Article. However, it keeps saying it cannot verify. I think maybe it's because I am assuming just putting it in my wwwroot is sufficient, but I don't know what else I need to do to have https://{YOUR-DOMAIN-HERE}.com/.well-known/microsoft-identity-association.json open the file itself for verification.
Verification of publisher domain failed. Unable to connect to https://mydomain/.well-known/microsoft-identity-association. [uFNK6]
Many people have faced this issue, you could have a look at this1 and this2 on Github. You may get one-time free support ticket for this issue via
You could send an email to AzCommunity[at]microsoft[dot]com with a
reference to this thread and also your Azure Subscription GUID.
As a workaround, you could add your custom domain to Azure AD. Then verify your custom domain name. After verifying your domain, you could directly select a verified domain or verify a new domain in the Publisher Domain panel without host the file at https://{YOUR-DOMAIN-HERE}.com/.well-known/microsoft-identity-association.json.
Hope this could help you.
I solved this problem by adding a web.config file to the .well-known folder to remove charset=utf8 from the Content-Type response. This appears to be necessary.
Beofre you start you can check with Curl from a PowerShell instance to see if the Content-Type being returned includes the charset and therefore is the source of your problem.
C:> curl https://www.whateveryourdomainis.org/.well-known/microsoft-identity-association.json
The web.config file contents is as follows:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<handlers>
<clear />
<add name="MicrosoftIdentityAssociation" path="*" verb="*" modules="StaticFileModule" resourceType="Either" requireAccess="Read" />
</handlers>
<staticContent>
<remove fileExtension=".json" />
<mimeMap fileExtension=".json" mimeType="application/json" />
</staticContent>
</system.webServer>
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</configuration>
You need to be aware that this will modify the child folders too and so if you have other sub-folders you may have to take remedial action ie another web.config file putting it back. However, it may be that once you have verified the site, the verification code can be deleted. See [https://learn.microsoft.com/en-us/answers/questions/37272/should-we-continue-to-host-microsoft-identity-asso.html][2]
I'm trying to secure a simple ASP.net website hosted on an internal IIS10 instance so that only a specific AD group can access it.
All my testing (and the final usage) would be internal to the same domain on which the IIS server resides - no external or cross-domain usage will occur.
Within Site Authentication I only have Windows Authentication enabled with a HTTP 401 Challenge response type. Enabled providers are Negotiate and NTLM (in that order), Extended Protection is Off and Kernel-mode authentication is enabled
In .NET Authorisation Rules I have no explicit Deny Rules.
If I add a 'Specified users' Allow Rule for my user account (and thus the user for which I'm testing access to the website) then I am able to access the website. At this point the relevant area of the web.config file looks like this:
<authorization>
<allow users="MYDOMAIN\MYUSERACCOUNT" />
</authorization>
If I remove that Allow Rule and add a 'Specified roles or user groups' Allow Row for an AD group for which my user account is a member of then I am unable to access the website and browsing to it prompts me for a Sign in dialog box which entering my AD credentials then gives a 401 error.
At this point the relevant area of the web.config file looks like this:
<authorization>
<allow roles="MYDOMAIN\AwesomeUsers" />
</authorization>
I've tried changing various Authentication settings (changing the order, disabling Kernel-mode authentication etc), adding the domain groups in the 'allow users' section in the Web.config but I just cant get AD group authentication working.
IIS isn't my strong point so would really appreciate any hints or tips I can try, Thanks! :)
try to use below code:
web.config:
<configuration>
<system.web>
<authentication mode="Windows" />
<authorization>
<allow roles="DOMAIN\ADGROUP" />
<deny users="*" />
</authorization>
</system.web>
</configuration>
applicationHost.config:
<configuration>
<location path="YOUR-APP">
<system.webServer>
<security>
<authentication>
<anonymousAuthentication enabled="false" />
<windowsAuthentication enabled="true" />
</authentication>
</security>
</system.webServer>
</location>
</configuration>
I am hosting a web site on an azure VM (IIS 8). The site (lets say www.site1.com) has its own domain name association and is built on Drupal. I want to map a sub page (within the same Drupal instance) to its own domain. For example I want the page that currently appears under: www.site1.com/page1, to also appear under: www.site2.com.
Thanks in advance
I suppose the response to this question below pretty much covers it for you
Set default webpage for website on Microsoft Windows Azure
You can set this up via the location paths
<location path=”webFolder1″>
<system.webServer>
<defaultDocument>
<files>
<add value=”myDefalutPage.aspx” />
</files>
</defaultDocument>
</system.webServer>
</location>
<location path=”webFolder2″>
<system.webServer>
<defaultDocument>
<files>
<add value=” myDefalutPage.aspx” />
</files>
</defaultDocument>
</system.webServer>
</location>
This way you can cover both the domains by just changing your values for files and where its pointing to.
Refer to this article for more information.
I have added the following configuration section to my web.config file
<security>
<authentication>
<anonymousAuthentication enabled="true" />
<windowsAuthentication enabled="true" />
</authentication>
</security>
But when I call the *.asmx web service, I still got the following error:
The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Negotiate,NTLM'.
I am using the IIS7.5 ASP.NET integrated mode.
Any clues? I just found the IIS Authenticatino is very poor and unstable.
Thanks!
It turns out that we need to grant NTFS permission to target folder for the Anonymous Authentication Authenticated As identity, besides enable Anonymous Authentication in IIS.
Windows Authentication happens in both IIS and NTFS file system. I always forget the latter one. I will cut my dummy brain.