I am facing an issue while trying a simple ASP.NET default application on the server. This is a fresh new server.
I get the error - 4010 An unhandled security exception has occurred.
There are no error details to it.
I have seen few websites which tried to relate the error to cache, however i don't have any cache in use.
On the local machine everything seems to be working fine. Any suggestions ?
I had this issue today and it was due to my asp.net application wanting to write to the Windows Event Log. The Event Source didn't exist and my application didn't have the permissions to create it so it errored with this message:
Event code: 4010
Event message: An unhandled security exception has occurred.
The fix for me was to create the Event Source and my application started working. I followed the steps from the below answer to manually create the Event Source via the command line:
How to create Windows EventLog source from command line?
In IIS, try increasing your site's .NET Trust Level to Full (internal).
You should try to enable trace or custom logging and see what the exception stack trace is.
ELMAH or Glimpse are useful if you don't have access to the production system.
http://www.iis.net/configreference/system.webserver/tracing
You might try to change the trust level from medium to high in the Web.config.
http://msdn.microsoft.com/en-us/library/tkscy493(v=vs.85).aspx
Microsoft has this info for how to log these exceptions to the Application log
unhandled exceptions cause ASP.NET-based applications to quit unexpectedly in the .NET Framework
I had to change the trust level from medium to high in the Web.config and solved issue
Reason :Full: Specifies unrestricted permissions and grants the ASP.NET application permissions to access any resource that is subject to operating system security; all privileged operations are supported
Related
I am receiving the following error message:
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: System.Security.Permissions.SecurityPermission
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: System.Security.Permissions.SecurityPermission]
MySql.Data.MySqlClient.MySqlClientFactory..cctor() +23
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
MySQL: mysql-connector-net-6.7.4
The problem only occurs if run from the shared web hosting environment. The site works great locally. I know the version of the .Net connector that my shared hosting environment uses, as that was another issue that I resolved and I was in communication with the hosting provider.
The error is interesting. I can go to the default page, no issues, the very first time. I then go to bring up a popup dialog, which throws another error message box.
Exception has been thrown by the target of an invocation.
The above is everything, except for the okay button.
I can bring up the first popup, a sign in dialog, which comes up. That dialog does not invoke MySQL. I bring up the second dialog, a registration dialog, which then throws the "Exception has been thrown..." message box. After that, I cannot go back into the sign-in dialog, as I get the "Exception has..." message box. If I press F5 to refresh the browser (IE or Chrome), I get the error from above. The above error indicates MySQL and some permissions.
I am suspecting that the "Exception has been thrown..." error is the result of the same MySQL, just the page has memory. Closing the browser window and launching the browser window again does not help, although on Chrome that works, just the browser window there really has to close down all the way.
I am in a shared hosting environment, so I have access to basically nothing, so I do not have access to any logs, at least that I can think of.
One final thought that may or may not be relevant. Yesterday and previous days my development work was done on a system with Windows 7 Professional and Visual Studio 2012 Professional (all latest service packs and updates), whereas today I am working at a different computer of mine, which is a system with Windows 8 Professional and Visual Studio 2012 Ultimate (all latest service packs and updates on the OS and VS). I was reading some other posts on unrelated issues that people with VS2012 Ultimate had issues, so I am not sure that has anything to do with it, but that is something that changed from yesterday to today.
Yes, I deleted everything off of the server and uploaded everything anew. I did a clean solution first, built the release, and then published. I still received the same error.
Any thoughts?
By default most hosts use "Medium" trust level. You can change your web.config as below to get full trust:
<configuration>
<system.web>
<trust level="Full" />
</system.web>
</configuration>
I moved my site off of a 2k3 server over to a 2k8 server. The site has a virtual directory pointed to a network share which has different credentials than the one used by the site. I set the virtual directory to use the correct credentials and it can browse the share fine through explorer, but when I try to load files (images, etc) through a browser I get the following asp.net error:
Server Error in '/' Application.
Configuration Error Description: An error occurred during the
processing of a configuration file required to service this request.
Please review the specific error details below and modify your
configuration file appropriately.
Parser Error Message: An error occurred loading a configuration file:
Failed to start monitoring changes to '\\networkshare'.
Source Error:
[No relevant source lines]
Source File: \\networkshare\web.config Line: 0
Version Information: Microsoft .NET Framework Version:2.0.50727.5456;
ASP.NET Version:2.0.50727.5456
The network share does not have a web.config.
I tried the solution provided here, but that did not solve the issue and this site isn't using impersonation. Do I need to enable impersonation? This was working correctly on win2k3.
OK, so based on our comments it sounds like this is either a share permissions problem or an NTFS permissions problem (same resolution, different dialog).
In IIS6 you typically had the worker process running as NETWORK SERVICE and that's what you would give permissions to to access shares and files on the network.
In IIS7.5 the application pools now run under an AppPool identity, one specific to the application pool that the website is running under. This link should be helpful: http://learn.iis.net/page.aspx/624/application-pool-identities/
As a quick fix (although I recommend reading up on it) though, you can go into the application pool, go to advanced properties, and set the identity back to NETWORK SERVICE.
I set up virtual directory in IIS 6. The asp.net setting for my application pool is 4.0.
When I try to access my site I get the following error.
Server Application Unavailable
The web application you are attempting to access on this web server is
currently unavailable. Please hit the "Refresh" button in your web
browser to retry your request.
Administrator Note: An error message detailing the cause of this
specific request failure can be found in the application event log of
the web server. Please review this log entry to discover what caused
this error to occur.
When I check the event application log I get the error below.
Failed to execute request because the App-Domain could not be created. Error: 0x80070005 Access is denied.
It looks like some sort of permissions error but I can't figure out what. Anyone have any ideas?
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Use ProcMon from Microsoft to trace the file access of your web server worker process (aspnet_wp.exe on XP, w3wp.exe on Win7, 2003, 2008). If you filter where Process Name contains one of those two EXE names, you will eventually see an ACCESS DENIED entry in the status column. This will tell you what folder/file that your web server app cannot access or open.
Tip: for easier reading of results, turn off the registry and network tracing in ProcMon before doing your test.
You can try giving the IIS_WPG group (or whatever group the application is running as) read/write access to you app directory and see if it helps.
Your pool is set as .NET 4 framework but is your application set to using .NET 4?
Verify the ASP.NET tab is set to correction version on your virtual directory properties:
Also check to see that your ASP.NET user has the correct access by:
Right click the website folder in IIS
Select Permissions
Select Network Service
Permit read access to the user that the ASP.NET process runs as.
You are probably using a custom user or else the persmissions would most likely be correct out of the box.
After deployment of new version of our ASP.NET 2.0 application, it started to raise security exception: „System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.“.
After quick research on internet we were able to resolve this isse by setting „Load User Profile“ to True in IIS 7.5 application pool. This solution is also mentioned several times here on stackoverflow:
Strange ASP.NET error !
System.Web.AspNetHostingPermission Exception on New Deployment
Running a asp.net web application project on IIS7 throws exception
However we were unable to find reason why it has to be true. We reviewed all changes in new version (gladly there were only a few), but didn’t find anything suspicious (no access to registry or temp data as some articles suggested etc). Could anybody give us hints when an ASP.NET application hosted in IIS 7.5 needs „Load User Profile“ option set to True?
Details:
Application pool: .NET 2.0; Managed Pipeline Mode - Classic; Identity – custom domain account
In IIS 6.0 (W2K3): Old and new
version of application work fine
In IIS 7.5 (W2K8-R2): Old version of
application works fine; new version
of application raises security
exception – it starts to work after
setting „Load User Profile“ to True
Thank you!
EDIT:
We have finally found the cause of this problem! Our admin used different technique to copy the new version of application from staging environment to production environment. He used web server as intermediary. After donwloading zipped release build artifacts to production environment and then unzipping the files, they were still marked as "blocked" because they came from different computer. See also https://superuser.com/questions/38476/this-file-came-from-another-computer-how-can-i-unblock-all-the-files-in-a. ASP.NET then logically executes these binaries in partial trust instead of full trust and that was actually causing mentioned security exceptions in our application.
Setting "Load User Profile" to True fixed the security exceptions as a side-effect. If "Load User Profile" is set to False, then our application (not our code, maybe some .NET BCL or external assembly) is trying to query basic info about directory "C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files" which the identity of application pool is not allowed to:
With full trust: access denied to this query operation doesn't raise any exception
With partial trust: access denied to this query operation raises security exception
If "Load User Profile" is set to True, then temporary profile in Users directory is created every time when application pool starts. Our application is then trying to query info about "Temporary Internet Files" directory of this profile, which the identity of application pool is allowed to. Thus no exception is raised even with partial trust.
Really nice troubleshooting session! :)
One more example when "Load User Profile" setting could helps you is usage of temporary files. Sometime this usege can be indirect. SQL Express for example can do this in some situations.
So my advice. Switch off "Load User Profile" and examine %TEMP%. Then try to give domain account used for application pool the full access (or change access) to the directory from %TEMP%. Probably it fix your problem.
One more advice is usage of Process Monitor (see http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx) to locale which parts of user profile will be used (or receive "access denied" error) at the moment when you receive "System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission" exception.
Another area where LoadUserProfile might help is when configuring a trusted MSMQ binding in WCF. If the app pool is running under a trusted account, this won't load the SID unless the Application pool load user profile setting is set to true, and hence authentication will fail.
I also ran into the same problem and could resolve the problem by setting load user profile=true. However i have reverted the load user profile = false and restarted the app pool but now i dont get any exception.
I have gone through all the relavents posts on stackoverflow and also on Asp.net and iis forum pages.
We're seeing an odd pattern in our QA Lab. We have two ASP.NET applications, each deployed on the same Windows 2008 SP2+ box. We have our App Pool running in a Domain Account, and set to never re-cycle. The same 1 App Pool is used by both applications.
After several hours of running fine, new users surfing to a page in our application get the IIS7 Error Page, with a 500.21 error.
If we do nothing but:
1) IISRESET
2) Change folder to c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files and "rd" the 2 applications.
And then surf to our web applications, all is fine.
Then several hours later, however, the 500.21 errors return.
What strikes me as odd is the seeming relationship between clearing the "Temporary ASP.NET Files" folders and the problem going away. I've a practice of clearing the "Temporary ASP.NET Files" folders when installing a new version of our application(s), but not otherwise.
Does this relationship ring familiar to anyone? Is there some new-ish IIS7 feature at work here?
Text of Error:
Server Error in Application "DEFAULT WEB SITE/PAIS"
Internet Information Services 7.0
Error Summary
HTTP Error 500.21 - Internal Server Error
Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list
Detailed Error Information
Module IIS Web Core
Notification ExecuteRequestHandler
Handler PageHandlerFactory-Integrated
Error Code 0x8007000d
Requested URL http://localhost:80/PAIS/Admin.aspx
Physical Path C:\0_Georgia\GA_IS_100142\PortfolioArchiveImageServer\Admin.aspx
Logon Method Anonymous
Logon User Anonymous
Most likely causes:
• ASP.NET is not installed or incompletely installed.
• A configuration typographical error occured.
• Unfavourable pre-condition evaluation exists.
Things you can try:
• If ManagedPipelineHandler is missing, ensure that:
o ManagedEngine is in .
o ManagedPipelineHandler is in , with correct pre-conditions.
• Install ASP.NET.
• Ensure all system.webServer/handlers#modules are in system.webServer/modules#name.
• Review pre-conditions in the and sections.
Links and More Information IIS core does not recognize the module.
View more information »
Thanks in advance,
Howard Hoffman
Faced the same problem and the fix was easy.
1) Open visual studio 2010 command prompt.
2) Run the command aspnet_regiis.exe -i
We found the actual problem, with MS ASP.NET support's help. It's pretty subtle. I think MS has said they will fix the issue in a follow on to the App Fabric release (which is now RTM). Fingers crossed.
The problem consistently occurs in this scenario:
1) ASP.NET web application not yet running. It includes WCF Net.Pipe and / or Net.Tcp bindings. I think the same would occur for NetMsmq but did not try it.
2) An inbound NetPipe or NetTcp WCF Windows Activation Service request is the initial request that starts the App Domain.
3) Application uses an 'Integrated' IIS App Pool (IIS7 or IIS 7.5)
4) The application uses HttpServerUtility.Execute during that 1st request.
It turns out that our application was firing an ASP.NET Health Monitoring event during the very 1st WCF operation -- the very operation that caused Windows Activation Service (WAS) to start our application. Our Health Monitoring configuration includes the TemplatedMailWebEventProvider.
Our application is using an 'Integrated' IIS App Pool.
The TemplatedMailWebEventProvider is implemented to create an email message body as HTML. It uses the System.Web.HttpServerUtility.Execute(string, TextWriter, Boolean) overload.
For this use case that overload does the wrong thing -- it initializes a 'Classic' IIS App Pool based HTTP pipeline. Because that's the wrong pipeline for an 'Integrated' IIS App Pool the pipeline gets corrupted with the next HTTP request -- which is actually the first inbound HTTP request.
So you get the 500.21 error for all future HTTP requests until the application is re-cycled. You don't need to perform the relatively drastic steps of IISRESET, clearing Temporary ASP.NET cache to clear up the error -- just restart the app via saving web.config and avoid the particular startup path that causes the error.
MS suggested a workaround for us -- use the SimpleMailWebEventProvider instead of the TemplatedMailWebEventProvider. That does work, since it takes HttpServerUtility.Execute out of the code path for the first request.
I'd suggested that MS introduce a new web.config <system.web> boolean setting -- UseIntegrated -- that let's the application specify the typeof App Pool to initialize with. Evidently IIS does not forward the App Pool type to ASP.NET, so my sugggestion is a work-around to that.
The TemplatedMailWebEvent provider is much more user friendly than the SimpleMailWebEventProvider, and we do hope MS addresses the issue.
Thanks all for reading,
Howard Hoffman
1. IIS 7 throws an exception as shown in below
2. Open visual studio 2010 command prompt in Administrator mode and execute aspnet_regiis.exe -i
3. Problem fixed, as shown below ASP.Net Application and ASP.Net MCV Application are running smoothly.
The problem more likely is in the application code. The Temporary ASP.NET Files folder contains pre-compiled copies of your app and will be refreshed every time the applications files are accessed. You can pre-compile these files with aspnet_compiler.exe in the \Windows\Microsoft.NET\Framework\v2.0.50727\ folder. Use the -errorstack option allow for more information to be generated about the error you are getting. Long running applications that don't recycle will run into problems if they use a lot of memory or retain large amounts of data in an inproc session state. if your sessions contain large amounts of information, consider using a sqlserver-based session manager.