IIS 7.5 has new inbuilt identity called ApplicationPoolIdentity. IIS takes care of authentication and avoiding interference of other process running into Network Services.
I would like to know whether ApplicationPoolIdentity has more permissions or Local Services.
As per my understanding Local System has got higher privilege, then Network Service and Local Services then minimum privileges are given to ApplicationPoolIdentity.
But then if you are running your IIS application in ApplicationPoolIdentity then it can access network resources.
Can you please clarify which is with minimum privileges??
Thanks
Keshav
Related
I am setting up a multi-node High Availability server cluster on Windows Server 2019 with remote file system access. To provide both 'least required privileges' and a common security setup across all the nodes, the software is being run under a gMSA account.
The gMSA is getting a registry error trying to access "HKEY_PERFORMANCE_DATA".
The Network Service account doesn't have this error, but will require each server to be registered against remote resources, which is not an ideal solution.
What permissions will need to be applied to the gMSA to replicate the same level of access on the server as the Network Service account?
I've tried various server security groups and granted the gMSA access to the HKEY_USERS\S-1-5-20 group all without success.
The one success was when I tried the Administrators group to verify it was possible at all.
My research has indicated that the Network Service account is an account of 'least-privilege' and 'User + Network' but my testing indicates that 'User' is not equivalent to the 'Users' security role.
I have an IIS-hosted website that has 11 web services each running under their own virtual application. For each, the underlying folder is a child of the hosting site's folder. All have existed for a year or more, but web service A may never have been actually tested when deployed, the others have been actively used.
We've recently decided to use Service A, made code changes and deployed. Attempting to reach the service throws a 401.3 authorization error:
You do not have permission to view this directory or page.
I've compared virtually everything I can find in IIS (App Pool settings, ASP.NET, IIS and Management Features, etc.) about Service A and it's peers with nothing seeming different.
Once I added IUSR to Service A's permissions, it responded normally. However, none of the other services have this account among their permissions, yet work fine.
Can someone shed a light on why a single virtual app that very closely mirrors ten others would need IUSR specifically listed among granted users?
The IUSR is used by the anonymous authentication. If you have enabled anonymous auth in the ServiceA, that contents is accessed by IUSR. Is the authentication setting different from ServiceA and other websites.
I am using IIS Manager in window 10,
I need to host my ASP .NET web Form project in iis and access from other devices in same network.
i add new website and provide physical path.
the ip access from the computer but cannot able to access from other device in same network.
It Shows:
While Authentication file.
The server is configured to use pass-through authentication with a built-in account to access the specified physical path. However, IIS Manager cannot verify whether the built-in account has access. Make sure that the application pool identity has Read access to the physical path. If this server is joined to a domain, and the application pool identity is NetworkService or LocalSystem, verify that \$ has Read access to the physical path. Then test these settings again.
As far as I know, this is IIS warning when you click test in the binding window.
By default, IIS will use identity to access the protected files.With psasthrough
authentication like impersonation, IIS will attempt to use the actual identity of the user when accessing protected resources.
If user doesn't auth, it will use application pool identity to access the resources.
In my opinion, it is just a warning not a error.
In my asp.net web application I am trying to retrieve images from a shared network folder. When I put this website live in IIS, I am getting an error that "Access to the path is denied" when I try to access the network folder. What is considered the user that IIS uses, and how would I grant permissions to the network folder?
Thank you.
The issue is because your application pool identity or the user that IIS is using to run the worker process does not have permissions on the network path.
You may want to grant this user permission on the network path. However, if you are using IIS AppPoolIdentity that is not possible as they are built-in account per machine. As is the same with any buit-in account.
I would advice you to use a network account and give that account appropriate permissions on both IIS and the network share.
You may have to add this user to the IUSR group.
My web-app runs in IIS 6.0 under windows server 2003, and we all know that in this situation, user account "Network Service" is used by IIS.
I happen to have to allow certain user to perform some action on my web page, and that action requires administrator privilege.
The laziest solution to me seems to add "Network Service" to Administrators Group, and it actually works.
MY QUESTION is, how DANGEROUS this solution is, and in what way can it compromise the security of my web server?
This is generally "a bad idea". If this is a public facing server then this is a really bad idea.
What you should do, and this is how we approach problems such as this, is sandbox the specific admin tasks you need to carry out in another process such as a Windows service which has elevated rights.
We then host a Remoting Server in the Windows Service and communicate with the service either over a named pipe or TCP/IP (if machine to machine and this is over a back end private network).
For more information, please see this answer which I left for another user regarding a similar problem:
Windows User Account that executes only IIS7 Provisions
An even better approach would be to never have direct communication between the web application and the windows service, but go through an intermediary such as a job or message queue. Your low privileged application places request for the admin task to be carried out, your elevated privileged service reads these tasks from the queue and carries them out.
In both cases you should ensure that you don't overscope the responsibility of each task. i.e. ensure that if the task is to create a new Windows account on the server then don't allow that new account to gain more rights than it needs.
If I were to write some web function that required box-level admin, I would make that it's own application in its own app pool, lock down that application as tightly as I could, give that app pool a named account (a domain resource, if on an Active Directory), and then give that account admin privileges on the box. Keeping it in its own app pool effectively locks it down from your regular application.
NT Authority/Network Service interacts with a ton of stuff on your machine. I cannot come up with any good reason to get Network Service admin privileges.
Under no circumstances do this.
If you add Network Service to admin group, then all anonymous users accessing your Web app will be admins by default and the damage potential is massive.
Per your question
I happen to have to allow certain user to perform some action on my web page, and that action requires administrator privilege.
that's fine - use Windows authentication on that web page and make the user a normal Windows admin. Now they, and all other admins, can perform the tasks you have set up.