So here is the scenario, I have an Asp.Net application that is using a custom authentication & membership provider but we need to allow completely anonymous access (i.e.) to a particular folder within the application.
In IIS manager, you can set the authentication mode of a folder, but the settings are saved within C:\Windows\System32\inetsrv\config\applicationHost.config file as described here
To make installation easier, it would be great if I could set this within my web.config but after a couple of attempts I think this may not be possible.
Does anyone know otherwise?
Many thanks
The first approach to take is to modify your web.config using the <location> configuration tag, and <allow users="?"/> to allow anonymous or <allow users="*"/> for all:
<configuration>
<location path="Path/To/Public/Folder">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
</location>
</configuration>
If that approach doesn't work then you can take the following approach which requires making a small modification to the IIS applicationHost.config.
First, change the anonymousAuthentication section's overrideModeDefault from "Deny" to "Allow" in C:\Windows\System32\inetsrv\config\applicationHost.config:
<section name="anonymousAuthentication" overrideModeDefault="Allow" />
overrideMode is a security feature of IIS. If override is disallowed at the system level in applicationHost.config then there is nothing you can do in web.config to enable it. If you don't have this level of access on your target system you have to take up that discussion with your hosting provider or system administrator.
Second, after setting overrideModeDefault="Allow" then you can put the following in your web.config:
<location path="Path/To/Public/Folder">
<system.webServer>
<security>
<authentication>
<anonymousAuthentication enabled="true" />
</authentication>
</security>
</system.webServer>
</location>
Use <location> configuration tag, and <allow users="?"/> to allow anonymous only or <allow users="*"/> for all:
<configuration>
<location path="Path/To/Public/Folder">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
</location>
</configuration>
<location path="ForAll/Demo.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
In Addition: If you want to write something on that folder through website , you have to give IIS_User permission to the folder
To make it work I build my directory like this:
Project
Public
Restrict
So I edited my webconfig for my public folder:
<location path="Project/Public">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
</location>
And for my Restricted folder:
<location path="Project/Restricted">
<system.web>
<authorization>
<allow users="*"/>
</authorizatio>
</system.web>
</location>
See here for the spec of * and ?:
https://learn.microsoft.com/en-us/iis/configuration/system.webserver/security/authorization/add
I hope I have helped.
I added web.config to the specific folder say "Users" (VS 2015, C#)
and the added following code
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</configuration>
Initially i used location tag but that didn't worked.
Related
What I am trying to deny users to access to static folder:
<location path="log4">
<system.web>
<authorization>
<deny users="*"/>
</authorization>
</system.web>
</location>
But this fails.
I found this Q&A for my question:
First answer is solution to my question:
<security>
<requestFiltering>
<hiddenSegments>
<add segment="Uploads"/>
</hiddenSegments>
</requestFiltering>
</security>
That's good.
But when I look closer to my web config, I have other sections that may restrict or allow users to access folder such as images or css, but below are not considered for input requests it allows any one access them.
<location path="images">
<system.web>
<authorization>
<deny users="*"/>
</authorization>
</system.web>
</location>
<location path="css">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
In the same thread second most upvoted answer, I would exprect it works but not.
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="Administrator"/>
<deny users="*" />
</authorization>
</system.web>
</configuration>
This might be a solution to my second part of question:
<modules runAllManagedModulesForAllRequests="true"></modules>
However as noted here this cause performance issue.
Here is also mentioned set up handler for example .xml files but I need at folder level.
My question how to deny/allow access to static folder content with location path with out seting runAllManagedModulesForAllRequests to true.
My application works with form authentication and on applicaton pool .net 2.0 with integrated mode.
You could set deny users in web.config as below:
<location path="s3">
<system.web>
<authorization>
<deny users="*" />
</authorization>
</system.web>
You could also refer below article for more detail:
Setting authorization rules for a particular page or folder in web.config
Regards,
Jalpa.
My web application uses forms authentication mode.
<authentication mode="Forms">
<forms loginUrl="Logon.aspx" protection="All" path="/" timeout="60" slidingExpiration="false" />
</authentication>
<authorization>
<deny users="?"/>
</authorization>
There is a folder in my web application, named "Documentos", that has a lot of PDF files.
My program allow the user to load a PDF file using its URL address:
http://MyHost/MyWebApp/Documentos/1.pdf
However, I need to restrict that functionality only to authenticated users.
For that, I put in my web.config:
<location path="Documentos">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
But it doesn't make any difference. Any one can still load any PDF file in folder Documentos doing:
http://MyHost/MyWebApp/Documentos/1.pdf
Can I accomplish what I'm looking for or should I approach it in a different way?
EDIT
Win's solution and Richard's solution are correct. This is the way to put those settings in web.config:
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
<location path="Documentos">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
Yo have two options -
Option 1
Use ~/ if your web application is not root level.
<location path="~/Documentos">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
Option 2
Create a web.config with following content, and place it inside Documentos folder.
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</configuration>
The problem is that by default, the auth section only applies to requests that go through the pipeline, not to static files. To do what you want, add the following attribute to your modules section:
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
...
I'm using Asp.Net Identity. I need to allow admins and deny users to access all pages in my management folder, so I've put a web.config file in that folder.
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="Admin"/>
<deny users="*" />
</authorization>
</system.web>
</configuration>
But anybody can still access all files in folder. I've also tried to put it into main config file with location tag,but no results. Have you any ideas where to start looking for a problem?
Update: I've found a question on asp.net forum which explains a lot:
http://forums.asp.net/t/1955560.aspx?ASP+NET+Identity+Are+web+config+files+no+longer+acting+in+the+capacity+of+a+security+guard+for+our+ASP+NET+applications+files+and+folders+
There also one thing to mention. When creating new web application project with asp.net Identity. Visual Studio 2013 sets these parameters:
<system.web>
<authentication mode="None"/>
</system.web>
and
<system.webServer>
<modules>
<remove name="FormsAuthenticationModule" />
</modules>
<system.webServer>
change your code to ** ** it prevent any user that aren't authenticated:
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="Admin"/>
<deny users="?" />
</authorization>
</system.web>
</configuration>
try this
<configuration>
<system.web>
<authentication mode="Forms"/>
<authorization>
<deny users="?"/>
</authorization>
</system.web>
<location path="[mymanagementfolder]">
<system.web>
<authorization>
<deny users ="?" />
<allow users ="*" />
</authorization>
</system.web>
</location>
</configuration>
MSDN SOURCE
If Directory Browsing Is enabled in IIS then you should turn it OFF
EDIT:
I Think You Should Enable Form/windows authentication. Above code is working fine on My Computer as It redirects to ReturnUrl
How does one specify root location in web.config to allow unauthenticated users access it?
The root location is served by default.aspx, but users normally don't see default.aspx, they just see http://mysite.com/.
So I've added
<location path="~/default.aspx">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
Which works if user hits mysite.com/default.aspx, but if user hits mysite.com/ - he is still redirected to login page.
I've tried <location path="~"> (does not help) and also <location path="~/">, <location path=""> (site fails completely) and could not make it work.
Any ideas?
Try this one:
<system.web>
<urlMappings enabled="true">
<add url="~/" mappedUrl="~/default.aspx" />
</urlMappings>
<authorization>
<allow roles="admin"/>
<deny users="*" />
</authorization>
</system.web>
<location path="Default.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
only use
<location path=".">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
or don't write path,because the default path is root(.)
You can achieve by 2 method
Method 1:
You can set redirect path to http://mysite.com/default.aspx in IIS if any user directly comes to your site.in IIS7 you can do that by clicking on Default Document. Here i attached image for your reference
Method 2
You can go through this URL ASp.NET Membership to set your web config settings.
Let me know if you need more detail on this.
The way we done it in the past was to create a folder for all functionality that requires login and set require auth for that folder. All aspx go to that folder. The root of the site stays open.
You probably use a forms authentification no?
<authentication mode="Forms">
<forms loginUrl="~/Default.aspx" />
</authentication>
This will solve your problem. An alternative is:
<location path="~/Default.aspx">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
If you only want to let unauthenticated users to access default.aspx you can use
<location path="Default.aspx">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
before <system.web> and set that page as default in your web server.
In Visual Studio you can select the page and "Set As Start Page".
If you want to allow access to all the files in the root you have to create folders where you put your pages which need to be accessed by authenticated users.
You can create a Secure folder where you can put all your protected pages and change your web.config this way:
<location path="Secure">
<system.web>
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</location>
removing
<authorization>
<deny users="?"/>
</authorization>
To specify root directory you have to set it outside the location block.
<configuration>
<system.web>
<authorization>
<allow users=“*“/>
</authorization>
</system.web>
</configuration>
and then secure your other folder using location block
<location path=“AccessDenied.aspx“>
<system.web>
<authorization>
<deny users=“?“/>
</authorization>
</system.web>
</location>
Use this :
<location path="Default.aspx">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
<location path="~">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
It works for me.
Merk was right!
I used
<location path="">
<system.webServer>
<httpRedirect enabled="true" destination="http://www.newpathdestination.com" exactDestination="true" httpResponseStatus="Permanent" />
</system.webServer>
</location>
on Windows netserver (don't ask), making sure to put nothing in between the quotes for location path. Redirects a request for the old home page to the new home page.
If you want to specify the root of the directory, use <location path="" >
<authentication mode="Forms">
<forms loginUrl="Login.aspx"/>
</authentication>
<authorization>
<deny users="?"/>
</authorization>
I am using forms authentication, and when i place the arguments cited above, the css formatting I have done for the whole document is not being implemented, it's vanishing. what should i be doing so that the CSS remains intact.
I assume that your login form has an external CSS file, and that you're using Cassini or IIS 7 integrated mode.
Your <deny users="?"/> is preventing anonymous users from seeing the login form's CSS files.
You need to use the <location> element to allow anonymous users to see the CSS files, like this:
<location path="CSS">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
</location>
Use the location element to allow access to your css:
<configuration>
<location path="style.css">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
</location>
</configuration>
<location path="Images">
<system.web>
<authorization>
<allow users="?"/>
</authorization>
</system.web>
**
please add this code in web config file
<globalization requestEncoding="utf-8" responseEncoding="utf-8"
culture="en-GB"/>