I am getting error's saying
Exception Details: System.UnauthorizedAccessException: Access to the
path 'E:\web\aawebapp\Content\events\events.json' is 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.
To grant ASP.NET access to a file, right-click the file in File
Explorer, choose "Properties" and select the Security tab. Click "Add"
to add the appropriate user or group. Highlight the ASP.NET account,
and check the boxes for the desired access.
Where this happens is in the Controller when I try to do the following.
string eventspathway =
HostingEnvironment.MapPath(#"~/Content/events/events.json");
System.IO.File.WriteAllText(eventspathway, newtext);
When I am running on localhost/debug this works fine, but does not work when webdeployed and thus spews out all the errors above.
What's hard to understand here? That exception means exactly what it says.
Your web app runs in an IIS worker process (w3wp.exe — "world-wide web worker process", get it?) called an app pool (application pool). That process runs under an account. Any process running under those credentials won't be able to read (or write) to a path for which it lacks the prerequisite permissions.
You (or your system adminstrators) need to grant the app pool identity under which your app is running sufficient permissions to do what it needs to do. Or you need to find a place to park your data where your app pool identity has sufficient permissions.
Another alternative — not recommended for a production system! — would be to run the app pool under the local system account.
For more information, see
http://www.iis.net/learn/manage/configuring-security/application-pool-identities
How to set up IIS 7 application pool identity correctly?
http://technet.microsoft.com/en-us/library/cc771170(v=ws.10).aspx
Related
I am getting access denied exception while trying to get a file from another system using my asp.net web application.
these both systems are in different domains. I am able to access the file from the explorer. However I am not able to access through asp.net web application (IIS).
Could you please help me out in this?
Exception Details: System.UnauthorizedAccessException: Access to the
path '\otherserver\inputs_for_import_only\AllOutputs\abcd.pdf' is
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.
To grant ASP.NET access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.
You Web application runs on different user account , check the identity under which you application is running and then provide access to that user account.
I'm trying to delete a user profile folder suing C# and ASP.net, when i do this through windows UI i get a UAC prompt which is fine.
I wish to this programmatically using ASP.net & C# .
The objective is for admin users to launch a webform and do this remotely on workstation but i'm currently getting permission errors.
(im running visual studio as admin in my debugging environment to delete local users)
{"Access to the path 'C:\Users\nzsp2013admin\AppData\Local\Microsoft\Windows\Application ..... is denied."}
code:
var dir = new DirectoryInfo("C:\Users\nzsp2013admin");
dir.Attributes = dir.Attributes & ~FileAttributes.ReadOnly;
dir.Delete(true); // true => recursive delete
This has to do with the permissions which are configured in IIS.
Every ASP.NET application that you run in IIS will be run using an identity that can be managed in the Application Pools section in IIS Manager.
By default, each Application Pool that is created (including the default one) will have permissions within a limited scope.
If I'm honest, the phrase Application Pool makes things sound more complicated than what they actually are. An application pool is just an identity exactly like the one that you use to sign on to your PC, and in your case an identity with normal user permissions is attempting to perform an action that requires a set of higher permissions.
To resolve this, open up IIS.
Click on Application Pools
Select the Application Pool that your web application is running under
Click on Advanced Settings
Click on identity and select Custom identity
Enter the credentials of an account that has administrative privileges.
However, I do have to warn you that you could be opening yourself up to a wide range of security concerns and that there are alternatives such as adding explicit permissions to specific directories that include the identity which the ASP.NET application is running from.
I used this approach and it works very well. With this approach you dont use an account with high level privileges all the time just when required and not for the application execution.
Try to use a domain account and add privileges to the folder or lacation you required. And share the folder so you can use an unc path.
Accessing a Shared File (UNC) From a Remote, Non-Trusted Domain With Credentials
You could use code impersonation:
http://csharptuning.blogspot.com/2007/06/impersonation-in-c.html
http://www.codeproject.com/Articles/14358/User-Impersonation-in-NET
regardless, whomever you use as the impersonation must be able to read/write to the location. We use this method in applications for delete/create folder across network but in theory, you should be able to wrap this around any piece of code, check to see if the user is an admin, and if so use the impersonated user to delete the folder, or however you prefer to do it.
Also, I noticed you mention that you are wanting to do it remotely, but your examples have the local path.
You may also find this useful: Deleting Windows user accounts remotely WCF and C#
I have an asp.net website that is hosted in IIS 7.5
The website has to use windows authentication. The users are added to an AD group. The AD user group has full control on the web folder in which the website is published. Server/IIS_IUSRS has full control on the web folder too.
The data that the website is required to use is stored in another server. The AD group has Full control on the folder in which the data is stored.
I am using Classic mode because Integrated breaks it.
What should be the website authentication and APP Pool settings?
Personally I have become a fan of setting the app pool identity to an AD service account and then allowing the app to access the database and other resources using those credentials. No need to pass the credentials on the connection string or try to impersonate the users (EDIT: Should note that this applies to resources which use windows integrated security). Also no need to try to give the users direct access to the datastore or other resources, just the app credentials need to have access. It is a bit more trouble to set up initially but much easier to manage in the long run.
Here is the checklist I send to our server group whenever I ask them to set up a new site for me: (note this is based on Win Serv2003 and IIS 6, things may be different in the newer versions.)
Set up a separate App Pool for the
application
Configure the App pool to run as the
service account
Add the service account to the
IIS_WPG group on the server
Make sure the IIS_WPG group has Read,
Read & Execute, and List Folder
Contents permissions for the website
directory and Read and List Folder
Contents to the C:\Windows\Temp
folder (or equivalent).
Grant User Rights “Adjust Memory
Quotas for a Process”, “Replace a
Process Level Token”, and “Log On as
Service” to the service account
Don't mix up IIS autorization and ASP.NET autorization :
IIS autorization
IP/DNS Address Restrictions
Web Permissions (Read, Write, Script Source Access...)
NTFS Permissions (non ASP.NET ISAPI extension only : .htm, .jpg...)
ASP.NET autorization
URL Authorization (<authorization> element)
File Authorization (ASP.NET ISAPI extension only : .aspx, .ascx...)
Principal Permissions (Demands)
.NET Roles
Restrict access to your web :
Uncheck anonymous access
Configure NTFS rights
Give access to your data folder, few solutions :
Use a service account for your application pool, allow it on your folder and manage access control in your application
Use default IIS 7 ASP.NET account, and impersonate the user locally in your code when accessing your data folder
System.Security.Principal.WindowsImpersonationContext
impersonationContext;
impersonationContext =
((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate();
//Insert your code that runs under the
security context of the authenticating
user here.
impersonationContext.Undo();
Activate impersonation globally (<identity impersonate="true"/>) ; dont like this one
I have read other posts about how to accomplish this but to no avail. When I deploy my application to the server (2008) I get the following exception at runtime:
Access to the registry key 'HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\TeamFoundation\Servers' is denied.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.UnauthorizedAccessException: Access to the registry key 'HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\TeamFoundation\Servers' is 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) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
To grant ASP.NET access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.
So the error seems very descriptive. I opened regedit and right clicked on the KEY (HKEY_CURRENT_USER\Software\Microsoft) --> Permissions --> Added user 'NETWORK SERIVCE' and granted FULL Control.
I assumed this was the user that ASP.NET was running over to access the registry.
I then tried to disable 'Include inheritable permissions from this object's parent.
This also did not work.
From within IIS Manager, under my application's authentication settings I set the 'anonymous authentication' user to my own which is in in the Administrator's group.
Nothing seems to work.
How can I resolve this issue? This is an internal tool running on our local network so I am not very concerned with security permissions at this stage. How can I grant the appropriate privileges?
Thanks!
It is hard to troubleshoot without knowing what your web application is trying to accomplish. However, I assume this is a web-base application which means you have created a db for your web. First, In your Web.config'connectionString', try using the username and password you used to login to SQL Server Management. Do not use a windows login. Second, trying running your application using F5 function key. This will start a built-in server that came with Visual Studio 2008. This does not require local IIS.
If still having problem, either post or send me your Web.config. See if I can help.
I had to set the Application Pool Identity to "LocalSystem" for this application. This allowed my application enough privileges to read the registry.
I have created a sample ASP.NET website and hosted it in IIS 6.0 . It is working fine , if the identity of the defalut app pool is "local system". But when i changed the identity with some other configurable user id then it is showing as "Service Unavailable".
The following message is found in the event viewver.
"The identity of application pool 'DefaultAppPool' is invalid, so the World Wide Web Publishing Service can not create a worker process to serve the application pool. Therefore, the application pool has been disabled."
Either the credentials provided for the user is not valid, or the user does not have the needed permissions.
I believe there is a security group on the machine called IIS_WPG that is created when Asp.net is installed, add the user to this group, it should give them the needed permissions.
Message is self-explanatory. The selected user id isn't valid - probably due to insufficient privaledges to run the service.
The user identity you use needs to have fairly significant rights to operate. At a minimum the user needs to have read/execute permission on the root directory of the folder. This user should also have read/write/execute permission on the Temporary Asp.Net Files folder located within the %SystemRoot%/Microsoft.Net/Framework/ folder.
FYI,
In a development environment you can use the default app pool to create your web applications.
In production environment you want to use lusrmgr.msc (Server 2008/R2/7 Ultimate and Pro) to create new users (and their credentials) on the machine and assign the users to the right group (IIS_IUSRS).
Also once you have created the user, you will want to give it access to your data source back-end (if sql is running on the same machine and using windows authentication to access SQL).
Check Application Pools which assign Site on IIS, probably it is stopped.