I am trying to access an old fashioned asmx web service hosted in IIS and I am banging my head against a 401.3 error. I know there are lot of resources out there but most of them make use of impersonation and by adding permissions for the authorized user to the file system, which I want to avoid.
My scenario is basically an IIS webservice, running with an AppPool which runs as a specific service account (DOMAIN\username + password). This service account has full control on the folder and the Anonymous authentication is set to use the AppPool Identity.
This is all good and working but now I wanted to secure my webservice by adding Windows authentication. I did that and added a simple <deny users="?" /> to the authorization section. What happens now is that when I connect to the server I get asked for a username and pwd, I provide one and then I get a 401.3 error.
I have tried adding read&execute permissions for myself to the folder and everything works but this is clearly not a proper solution as I would have to keep managing folder permissions.
My question is: why does the authenticated user needs folder access? Isn't the folder accessed as the app pool identity? Impersonation is disabled so I would expect that to be the proper behaviour.
why does the authenticated user needs folder access?
The FileAuthorization module requires the authenticated user to have permissions to the file.
Isn't the folder accessed as the app pool identity
Yes, but the above module also checks the authenticated user. You mentioned that you have Anonymous set to use AppPoolIdentity, so I'd expect in your case, this to be true.
Impersonation is disabled so I would expect that to be the proper behaviour.
This is independent as the FileAuthorization module kicks in anyways.
By recommendation for how to troubleshoot would be grab a ProcMon trace and I suspect you'll see some AccessDenied. Go look and see what permissions are required by what process and see if its doing impersonation (for this check). This will tell you what permission is missing/failing.
I've just wrote a legacy app on IIS 6.0 (.NET 1.0, don't even ask why!). One of the requirements is to have "Integrated Windows Authentication" disabled on the Virtual directory.
http://localhost/test.html
When I disable that, I get a error 401.1 on the IIS root's test.html, which consists of "Hello World"
You are not authorized to view this page You do not have permission to
view this directory or page using the credentials that you supplied.
Please try the following:
•Contact the Web site administrator if you believe you should be able
to view this directory or page. •Click the Refresh button to try again
with different credentials. HTTP Error 401.1 - Unauthorized: Access is
denied due to invalid credentials. Internet Information Services (IIS)
When IWM is enabled, the website works like a gem.
Does anyone know what is the root cause? This doesn't appear to be an issue with my app since even the default test.html fails with authentication
You will most likely need to set the correct folder permissions for the 'Anonymous' user on the folder you are accessing.
http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/f594e137-e2da-4b22-ab58-f8edba938802.mspx?mfr=true
edit: this is the more relevant link:
http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/9ded7af2-fcb7-4ed2-b007-e19f971f6e13.mspx?mfr=true
Issue was resolved with removing Guest and Anonymous restriction from the local security policy
I have setup a application in my IIS7 that uses .NET Framework 4.0 (runned by NetworkService) but when browsing the site I get this:
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*
I have tried to give NetworkService full permission on the folder that holds the website (the one that the web application in IIS is pointing against) but I do still get the access denied?
Why?
I gave access to "IIS_IUser" but instead it should be "IUSR". That solved the problem.
For me, nothing worked except the following, which solved the problem: open IIS, select the site, open Authentication (in the IIS section), right click Anonymous Authentication and select Edit, select Application Pool Identity.
I had the same problem, I enabled "Anonymous Authentication" but it still did not work.
So I also ENABLED "Forms Authentication" Then it worked without any problems.
OS : Windows 7 & IIS 7
If you still have permission denied after adding IUSR & NETWORK SERVICE.
Add also IIS_WPG. The addition of this last user solved my problem.
For people who can't find those users:
when you're trying to add a user in security of the folder (properties of the folder), click on "Advanced" of the window "Select Users or Groups". Change the location to the computer name then click on "Find Now". You'll find those users in the list below.
If you're using Anonymous Authentication, IIS 7 will use the "IUSR" account for directory access (unless you've set it to use the app pool identity. If you haven't granted IUSR sufficient permissions on your site's folders and files, you'll get this error
For me in windows 7 it started to work only after I gave 'Read & execute', 'List folder contents', 'Read' permissions to site folder for both users
IUSR
NETWORK SERVICE
Tried most of the solutions here, but no luck. What worked for me was adding "Everyone" to the security permissions. Properties -> Security -> Edit -> Add -> Everyone. The given defaults were enough for me to regain access.
In the near future, I should probably figure out what credentials are being sent to the server so that I can give proper permissions. But I hope it helps someone!
In the Authentication settings for APP itself (IN IIS), see if you have anonymous enabled.
We need to create a new user ComputerName\IUSR by going to the website folder-->Properties--->Security--->Edit-->Add and give read access. This would work definitely.
This solution is for IIS7
I went round and round on this and it turned out to be improperly set default page. Hope this helps someone else avoid an hour of wasted time.
In my case running c:\windows\Microsoft.Net\Framework64\v4.0.30319\aspnet_regiis.exe /i resolved the 403 access denied issue.
Checking the Application Pool Identity in Anonymous Authentication and enabling Forms Authentication would solve problem for access denied error. 😁
After some thinking and a lot of of trial and error I found out that this error occurred because part of my web.config was encrypted and for some reason the key was no longer valid.
Re-encrypting the config section solved the issue.
After watching this tutorial :
https://www.youtube.com/watch?v=RbrZbHpXBTE&list=PLp1Emx1rT4z9YWLDXBjUwBb130qv2Zq2x&index=4&ab_channel=LearningProgrammingTutorial
I had the same problem using RDP ( windows server 2016 Datacenter )
i followed the tutorial above & enbaled my directory browsing options from the IIS internet infromation services manager.
what you want to do is to access your IIS manager , you can check out the tutorial above to learn how to access IIS manager if you have trouble acessing there , it was useful for me that's why I'm sharing then ... go to :
you should gave access to IUSER
( or application tool identity , depends or what you want to work with )
and your problem would be solved! :)
Also you need to check your firewall and TCP settings , if ping between two machines didn't work for you , you can check this out :
https://operavps.com/rdp-connection-issues/
It was due to WWWRoot directory security issue.
Simple solution is, Just copy applicatio folder to some other drive, Instead of "C:\Inetpub\wwwroot"
and then create a virtual directory for this new path. That's it.
If the IUSR user is already specified in Authentication and you're still getting this issue, it could be that your Directory Listing isn't enabled. Be sure to check that. That was the case for me.
This is what happened to me:
Get - Post is ok. Working well.
When I try to use Options verb, the server return error like that.
Then, beware with urlScan
I add OPTIONS verb to urlscan configuration .ini file, then everything works well.
To check if urlscan is installed or not, open your iis manager, and open ISAPI FILTERS url scan should appear at the list.
I was also facing the same issue,
Everything was normal all the rights were given to the user and for folder as well.
After many research i found that the wwwroot (Source code folder) was shared with some other user.
I stopped sharing and it worked like a charm.
I was facing this issue after pulling from remote master and adding to the appsettings on web.config.
I solved it by enabling Windows Authentication:
Click on the project and press f4
Make sure Windows Auth is enabled:
I am getting the following error while browsing the my webpage
i checked and seen anaymous access has been enabled and integrated aunthentication has been turned off ...
Could you please help?
You are not authorized to view this page
You do not have permission to view this directory or page using the credentials that you supplied.
--------------------------------------------------------------------------------
Please try the following:
Contact the Web site administrator if you believe you should be able to view this directory or page.
Click the Refresh button to try again with different credentials.
HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.
Internet Information Services (IIS)
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My web.conf look like below:
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
You should also check the NTFS permissions on the directory and files in your web site itself. The easiest way to determine if this is the problem is by giving Everyone READ access. Test it. Then remove the Everyone entry. If that had solved the problem, find out what user account the IIS application pool hosting your web app uses, and add that user account to the NTFS permissions list giving that user Read access.
I am using asp.net 2.0 and IIS 7 on vista 64 bit.
everytime, when i try to open page in browser, i get following error.
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:\example\WebApplication1\WebApplication1\Default.aspx'.
Does your application pool's user have read permissions to the files you're trying to serve? By default, this should be the NETWORK SERVICE user.
Your ASPNET user will also need access.
Permissions can be set here:
Right click the directory or file --> Properties --> Security tab
You need to give the permission to user name "Internet Guest Account" on C:\example directory on an inner directory given you have used the same user in the IIS anonymous setting.
Give your aspnet local user permission to the directory you're trying to access.
You need to add permission to the user binded with Application Pool on folder in which is your website.
The name of the user is usually IUSR, NETWORK SERVICE or IIS_IUSRS.
Permision to the root: Read and Execute, List folder and read
Permission to the root/App_Data: All
Or another approach could be to set the username in the application pool (Advance setting -> Identity) to the username which has rights to read the directory. You may need create new application pool.