Its on win server 2012 R2 and researching says its IUSR_MACHINENAME which doesn't even come up when I try to add that to the folder's security list.
The error i'm getting is Access to the path denied.
ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and the configured application pool identity on IIS 7.5) that is used if the application is not impersonating. If the application is impersonating via , the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
About the access error you mentioned, you can try this:
Make specific folders being accessed read/write for users who need it,
this can be done by a unique user or a group of users within an
organization. ex: right click and security tab, give IIS_IUSRS setting
read and write permissions on the folder. Or another way is that set
.Net Framework V4 in "Application Pool" to "Integrated" instead of
"Classic".
You can refer to this thread for the similar issue: ASP.NET is not authorized to access the requested resource when accessing temp folder
Related
I am running my ASP.NET application in IIS 8.0 with the following settings,
* Anonymous Authentication (mapped to ApplicationPoolIdentity)
* Application Pool's Identity mapped to "ApplicationPoolIdentity"
My understanding is, it will create an account named "IIS Apppool\" and the worker process will run in that account.
My Question is,
* What permissions will the "IIS Apppool\" account have.
* My application is trying to write some logs outside the application folder, still the logs are getting written. Under what permissions these logs are getting written outside application\website's folder?
* Is this a security issue?
* How to restrict "IIS Apppool\" permissions only to application folder?
Thanks!!!
Answers are inline.
What permissions will the IIS Apppool\ account have.
The default permissions are described here.
More you can read here.
My application is trying to write some logs outside the application folder, still the logs are getting written. Under what permissions these logs are getting written outside application\website's folder?
This depends on a lot of factors. By default the application pool identity will be used. See this article to determine what identity will be used.
Is this a security issue?
No this is not a security issue.
How to restrict "IIS Apppool\" permissions only to application folder?
You actually need to do it the other way around. you need to restrict the access for IIS AppPool on other folders. One way would be to use Group Policy
New local/ domain user needs to be created using a Web based application.
I have used System.DirectoryServices and System.DirectoryServices.AccountManagement namespaces to attain it.
So if I run the application using Visual Studio (2012) everything goes smooth (User is getting added to the active directory!).
But if I host the website in IIS and try to do the same operation, it throws an error message saying Access is Denied.
I did a research and found out the reason also - It is happening because the APPLICATION POOL Identity is set to an user who has only USER Privileges.
But due to security reasons user with ADMINISTRATIVE Privilege cannot be given as the Application Pool Identity in the application.
So, is there any alternative way to by-pass this Application Pool Identity and allow the user to create local/ domain user successfully.
Waiting for valuable reply/ suggestions.
I've managed to setup two virtual machines in my local windows 7 laptop. Both of them are Windows server 2008 R2. One acts as Active Directory Domain controller and also as Active Directory Federation Services, and one other as the web app server. This second one is where I've set up my claims aware asp.net mvc web application and I also plan to setup ThinkTecture Identity Server later as my way to authenticate against custom username and password outside AD.
I've successfully implemented the installation and configuration needed for connecting our ASP.NET MVC apps through ADFS. They include :
Configure first server as Domain Controller and add domain account store (add user as testing -> this user belongs to Domain Users Group).
Configure first server also as active directory federation services.
configure relying party trust identifier from federation metadata generated from FedUtil.exe in second server.
Configure group claim mapping and assign Domain Users to this group.
Configure web apps server to be claims aware agent.
The one that's always troubled me is that every time I access my apps, it successfully prompts login dialog box. Once I enter My AD account and password, it always gives me the following error message : "There was a problem accessing the site. Try to browse to the site again.
If the problem persists, contact the administrator of this site and provide the reference number to identify the problem.
Reference number: c558ed55-b203-42cc-b6bd-3d66bddb96cd".
Any idea from you guys how to get this to work?? Any suggestion and ideas will be highly appreciated.
Have you looked in the event log?
Open Event Viewer > Go to Applications and Services Logs > AD FS 2.0
You'll see an list of errors which should give you some more guidance.
If you see the ADFS login screen, you can get to ADFS so I suspect it's something to do with your RP configuration.
Just to check - you are using ADFS 2.0 which you downloaded?
I created a brand new WCF web application with .NET 4.5.1
I have set in IIS the Authentication to Anonymous Authentication (enabled). All the other options are disabled. The web site in IIS is set to its own application pool which run under my credential. I am the administrator of the machine. The application pool is set to use version 4.
The url is
http://localhost:8885/Service1.svc
The port is good.
If I use the Process Monitoring I see this output for w3wp.exe:
Full Size here
Why do I get a 401 error, if I have the read-write access (the app pool is running my account)?
Server Error in '/' Application.
Access is denied.
Description: An error occurred while accessing the resources required to serve this request. You might not have permission to view the requested resources.
Error message 401.3: You do not have permission to view this directory or page using the credentials you supplied (access denied due to Access Control Lists). Ask the Web server's administrator to give you access to 'C:\Users\Patrick\Documents\Visual Studio 2013\Projects\MyServiceA\MyServiceA\Service1.svc'.
To make it works, you have to create a website in IIS and inside Visual Studio, in the property of the project, you add a virtual directory.
After, if you go into IIS, you will see an application added to your website.
From here you can access your WCF services
http://localhost:8885/MyServiceA/Service1.svc
My web appkication has the following set up..
WCF application hosted on IIS7
Basic HTTP binding - SecurityMode = TransportCredentialOnly and ClientCredentialType = Windows.
.Net 4.0
The app runs in a .Net 4.0 Application Pool using "ApplicationPoolIdentity".
IIS connects to the file system using "Application Pass Through" authentication.
The client and service both run under IIS - that is the client is a webste and the service is an IIS hosted WCF service.
What I would like to understand is that what user accounts are used at the various points in authenticating too and using the service.
I understand that ApplicationPoolIdentity is a built in Windows account that is generated for each created application pool - is this the account under which w3wp.exe will run for the website?
No credentials are specified between clent and server - and this is the most interesting point. When my client connects to my WCF application what identity is used to authenticate to the service. I presume the application pool identity of the app pool hosting client website?
If so then what would happen if the two sites use two differnet app pools?
Or does the service just require a valid account on the machine (or domain) and that is good enough to authenticate?
If I changed the application pool to use a specific user account does this change anything? Again I presume as long as the client passes a valid machine account is that ok?
Also,,,
What identity is used for the file system?
What permissions does "ApplicationPoolIdentity" have on the machine and for the file system.
Finally in the case of SQL Server Integrated security what identity is passed through to SQL server if my service talks to an SQL Server database.
Thanks in advance.
I understand that ApplicationPoolIdentity is a built in Windows
account that is generated for each created application pool - is this
the account under which w3wp.exe will run for the website?
Yes it is. That is called a virtual account which allows IIS to create unique accounts for each defined application pool, also a security identifier is created representing the application pool name. Keep in mind that this is not real user account. For more information about it you can check the following link: http://technet.microsoft.com/en-us/library/dd548356.aspx
No credentials are specified between clent and server - and this is
the most interesting point. When my client connects to my WCF
application what identity is used to authenticate to the service. I
presume the application pool identity of the app pool hosting client
website?
Yes, same rule applies as for using Local Service account or Network Service account.
If so then what would happen if the two sites use two differnet app
pools?
Nothing, unless you elevate the rights of those application pools identities.
Or does the service just require a valid account on the machine (or
domain) and that is good enough to authenticate?
Then you are not going to use the default virtual accounts created for your application pools. Instead you will associate those application pools with existing windows accounts. Keep in mind what sort of permissions those windows/domain accounts have.
If I changed the application pool to use a specific user account does
this change anything? Again I presume as long as the client passes a
valid machine account is that ok?
It would work just fine as long as those accounts will have permissions according to your needs.
What identity is used for the file system?
Define with more details what you mean by file system; are you referring strictly at your application directory?
What permissions does "ApplicationPoolIdentity" have on the machine
and for the file system.
ApplicationPoolIdentity is a member of Users and IIS_IUSRS groups so will "inherit" the permissions of the previously mentioned groups.
Finally in the case of SQL Server Integrated security what identity is
passed through to SQL server if my service talks to an SQL Server
database.
ApplicationPoolIdentity or the account you have configured to be used by your application pool.