SecurityException: Request for the permission of type AspNetHostingPermission failed

asp.net asp.net-mvc code-access-security securityexception trust
pupeno picture pupeno · Oct 28, 2009 · Viewed 12.7k times · Source

Setting up a new developing workstation, when I run the ASP.NET (MVC) application from Visual Studio 2008 I get a SecurityException. Any ideas what might be the problem?

I am accessing the data files over SMB (it's a shared mounted as Z:) and I've given full trust to it by running

caspol -m -ag 1 -url "\\server\share\" FullTrust -exclusive on

The full traceback is:

Server Error in '/' Application.

Security Exception

Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details:
System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Reflection.Assembly._GetType(String name, Boolean throwOnError, Boolean ignoreCase) +0
System.Reflection.Assembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase) +42
System.Web.UI.Util.GetTypeFromAssemblies(ICollection assemblies, String typeName, Boolean ignoreCase) +145
System.Web.UI.TemplateParser.GetType(String typeName, Boolean ignoreCase, Boolean throwOnError) +73
System.Web.UI.TemplateParser.ProcessInheritsAttribute(String baseTypeName, String codeFileBaseTypeName, String src, Assembly assembly) +111
System.Web.UI.TemplateParser.PostProcessMainDirectiveAttributes(IDictionary parseData) +279

Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

Answer

Espo picture Espo · Oct 28, 2009

Are you using a virtual directory that points to a remote share?
http://support.microsoft.com/?id=320268

Also take a look at "Troubleshooting common permissions and security-related issues in ASP.NET"
http://support.microsoft.com/?id=910449

Related questions

A potentially dangerous Request.Form value was detected from the client

Every time a user posts something containing < or > in a page in my web application, I get this exception thrown. I don't want to go into the discussion about the smartness of throwing an exception or crashing an …

Read More
Can I set an unlimited length for maxJsonLength in web.config?

I am using the autocomplete feature of jQuery. When I try to retrieve the list of more then 17000 records (each won't have more than 10 char length), it's exceeding the length and throws the error: Exception information: Exception type: InvalidOperationException Exception …

Read More
Could not find a part of the path ... bin\roslyn\csc.exe

I am trying to run Asp.net MVC project retrieved from TFS source control. I have added all assembly references and I am able to build and compile successfully without any error or warning. But I get the following error …

Read More