Web Forms :: Security Exception - Application Attempted To Perform Operation Not Allowed By Security Policy
Apr 2, 2013
Error:Â
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.Local its run fine. when i place in iis. it throw this exception.
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Similar Messages:
Nov 10, 2010
i have an dll file which is data access layer of my application.
i am getting this exception while accessing databse
Description:
The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission 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.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
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Oct 1, 2010
I have a function that finds a files MIME type for download purposes. I use this DllImport:
Code:
[DllImport("urlmon.dll", CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = false)]
static extern int FindMimeFromData(IntPtr pBC,
[MarshalAs(UnmanagedType.LPWStr)] string pwzUrl,
[MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.I1, SizeParamIndex = 3)] byte[] pBuffer,
int cbSize,
[MarshalAs(UnmanagedType.LPWStr)] string pwzMimeProposed,
int dwMimeFlags,
out IntPtr ppwzMimeOut,
int dwReserved);
I use this function:
Code:
#region GetMimeFromFile(string)
public static string GetMimeFromFile(string file)
{
IntPtr mimeout;
if (!File.Exists(file))
{
throw new FileNotFoundException(file + " not found.");
} //if
int maxContent = (int)new FileInfo(file).Length;
if (maxContent > 4096)
{
maxContent = 4096;
} //if
byte[] buff = new byte[maxContent];
using (FileStream fs = new FileStream(file, FileMode.Open))
{
fs.Read(buff, 0, maxContent);
} //using
int result = FindMimeFromData(IntPtr.Zero, file, buff, maxContent, null, 0, out mimeout, 0);
string mime = Marshal.PtrToStringUni(mimeout);
Marshal.FreeCoTaskMem(mimeout);
return mime;
}
#endregion
Locally, it runs fine. However, when I put it on a GoDaddy server, I get the error:
"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. "
My stracktrace points to line 256, which is the ending french bracket of my GetMimiFromFile function.
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Jun 15, 2010
I use dynamic currency symbol(Doller,£,etc.,) for that the web config is updated in locally but in site I can not modifiy the web config file and I get the following error
"Attempted to perform an unauthorized operation."
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Mar 12, 2012
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. Â 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: Requested registry access is not allowed.
What changes & where do i make in webconfig??
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Mar 18, 2011
I am working on a government site and am having some problems with my local security policy interferring with my web application. There is a setting called "System cryptography: Use FIPS 140 compliant cryptographic algorithms, including encryption, hashing and signing algorithms" which is enabled on my server.
Since that has been enabled, most of my aspx pages are returning the error "This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms." These pages aren't accessing any cryptographic methods. They do communicate with another database server, but that's it.
My problem is similar to the one described here. However, I don't have the option of disabling this FIPS security setting.
I am using .NET 4.0, IIS 7.0, and Windows Server 2008 R2, if that matters. Has anyone encountered this problem before?
Update
Unfortunately, correcting the machine key element to use a FIPS compliant algorithm did not completely solve my problem. I am still getting the error on alot of my pages.
I found two hotfixes which may be related. I will try to install these and see what happens.
SQL Server Reporting Services R2 hotfix ScriptManager Control hotfix
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Oct 15, 2010
I'm working on a SharePoint solution which makes use of a third party dll (Telerik for Asp.Net Ajax - Telerik.Web.UI.dll) for rich experience. Since Telerik dll is a common assembly i have to deploy it to the bin folder of the webapplication instead of GAC. So here comes the problem.
WSPBuilder automatically deploys the dll to gac if the dll presents in the GAC folder. To deploy the telerik dll in bin i created the folder 80in and copied the dll there. I tried to build the wsp again and then went through the manifest.xml created. Great. The deployment target for the dll changed to WebApplication and wspbuilder was smart to create the cas policy itself.
<CodeAccessSecurity>
<PolicyItem>
<PermissionSet class="NamedPermissionSet" version="1" Description="WSPBuilder generated
[code]....
But Wspbuilder was not smart enough to put the four part name of SharePointPermission IPermission class. But i learnt that CAS actually requires the four part name. So i decided to make use of the -CustomCAS command line option of wspbuilder.exe to pass my custom cas policy file.
Here is my custom policy file -
<IPermission class="AspNetHostingPermission" version="1" Level="Minimal" />
<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="Execute" />[code]....
After i deployed the wsp i verified
* the dlls going to bin
* the trust level changed to custom trust level
* custom policy file being added to config folder
But when i run the page i get the following error -
screen shot -
Error -Execution Permission Denied
I've checked my entire application for any assembly references of the dll. But i was not able to find one.
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Apr 6, 2010
when i run my application i got this error like...
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Security.Policy.PolicyException: Required permissions cannot be acquired.
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Feb 19, 2010
If you enable the "Use FIPS compliant algorithms for encryption, hashing, and signing" security policy option in Windows, attempting to use many of the cryptographic classes in the .NET Framework will result in an InvalidOperationException. By default, ASP.NET uses AES to encrypt the ViewState blob, so it fails. You can work around this by adding a key like this to web.config:
<machineKey validationKey="AutoGenerate,IsolateApps" decryptionKey="AutoGenerate,IsolateApps" validation="3DES" decryption="3DES"/>
And that covers you for basic ASP.NET use. My problem is this: I have a large, complex ASP.NET web applications that makes heavy use of ScriptManagers (the foundation of ASP.NET AJAX) and needs to be deployed by a government customer who must enable this FIPS policy setting. Any ASP.NET page with a ScriptManager on it throws this exception:
[InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.]
System.Security.Cryptography.SHA1Managed..ctor() +3607454
System.Security.Policy.Hash.get_SHA1() +45
System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfoInternal(Assembly assembly) +85
System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfo(Assembly assembly) +99
System.Web.Handlers.RuntimeScriptResourceHandler.GetScriptResourceUrlImpl(List`1 assemblyResourceLists, Boolean zip, Boolean notifyScriptLoaded) +525
System.Web.Handlers.RuntimeScriptResourceHandler.System.Web.Handlers.IScriptResourceHandler.GetScriptResourceUrl(List`1 assemblyResourceLists, Boolean zip, Boolean notifyScriptLoaded) +910
System.Web.Handlers.RuntimeScriptResourceHandler.System.Web.Handlers.IScriptResourceHandler.GetScriptResourceUrl(Assembly assembly, String resourceName, CultureInfo culture, Boolean zip, Boolean notifyScriptLoaded) +193
System.Web.UI.ScriptReference.GetUrlFromName(ScriptManager scriptManager, IControl scriptManagerControl, Boolean zip) +306
System.Web.UI.ScriptManager.RegisterUniqueScripts(List`1 uniqueScripts) +169
System.Web.UI.ScriptManager.RegisterScripts() +407
System.Web.UI.ScriptManager.OnPagePreRenderComplete(Object sender, EventArgs e) +200
System.Web.UI.Page.OnPreRenderComplete(EventArgs e) +11041982
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3672
Even adding the <enforceFIPSPolicy enabled="false"/> element to web.config does not resolve the exception.
Is there any way to configure ASP.NET such that ScriptManager can be used with the Windows FIPS security policy?
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Jun 5, 2010
I'm calling Another url from my web aspx page. I'm writing
[code]....
But I'm getting error
A socket operation was attempted to an unreachable host 208.101.14.59:80
I tried the same url by pasting it on address bar and works fine. When I call my vendor they r saying that there is no any problem from their side. Someone has suggested me that there may be some settings in web.config.
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Jan 31, 2014
I write code for sending mail. Its working fine in local  at Execution time. After i Hosted into server. it shows the Error.
A socket operation was attempted to an unreachable host [IP]:587
code:
Dim mail As New MailMessage
mail.To.Add("xxx@abc.com")
mail.From = New MailAddress("yyy@gmail.com")
mail.Subject = "Subject"
mail.IsBodyHtml = True
mail.Priority = MailPriority.High
[Code] ....
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Jul 12, 2010
I'm having hard time to figure out whats going on with my IIS.My application was running in IIS very well untill I used Visual studio Copy website to update the files in the wwwroot.All of a sudden I got this error.My application works fine from the file system.I tried deleting my application from IIS and uninstalled from control panel and ran the newly built msi/exe but I never got my application back what so ever.This is web.config for reference.I've also tried <trust level="Full"> element but this didn't help.I remember the whole problem started when I was trying to debug the functionality to upload and download files in ASP.Net.
[Code]...
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Jul 22, 2010
I have created user web control library project and these controls i'm using in my web application. These User controls just works fine in my local machine but when i moved this project(including Library) to our Local server , it is throwing security exception
Error 1 Cannot register assembly "LocalServerLibraryDemoLibraryDemoLibraryinDebugLibrary.dll". Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Library
Anybody knows why this error occuring...?
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Apr 26, 2014
In My Project We Filter Dataview Which Contail Integer and string value
sort data likes this
dvv.RowFilter = filterfor + " Like " + SearchExpression;
but when integer value is encounter Error occurredÂ
Cannot perform 'like' operation on system.int64 and system.string
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Aug 4, 2012
I need to dispay confirm box on server Side.. senario is like Im Trying To upload Image During Upload Im Checking some properties like Image type,image size, etc.. While Uploading i want to check properties like
if(type=="xxxx")
{
confirmbox("Â ");
if(confirmvalue=="yes")
{
next condition
}
else
{
exit ;
}
}
like this i want check different properies of file.. how can i do this
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Jan 8, 2011
I'm trying to build a website which has a two-tier membership system, a bit like Basecamp. The first level of membership will be the administrators, who must have unique usernames. The second level will be the clients of the administrators, so they must allow duplicate usernames (e.g 'johnsmith' can register under 'administrator1' but 'johnsmith' can also register under 'administrator2'.To give a bit of background on this, evenutally each administrator will have their own sub-domain (exactly like Basecamp) using their username as a sub-domain, like this:http://administrator1.example.comhttp://administrator2.example.comThen each administrator may have lots of clients, with their own username as part of the URL when they log in. e.g:[URL]this type of membership system? Presumably it has to be a custom provider? Would I be better just creating my own database table structure (perhaps 2 tables, one for each membership type) then build the code around these, with my own authentication etc?What I'm thinking is a database schema something like this:AdminMembers table:Id (primary key)Username (must be unique)EmailPasswordClientMembers table:Id (primary key)UsernameEmailPasswordAdminMembersIdWould something like this work? If so, would I need to make this into a custom provider? Any good references for this type thing?I'm a total ASP.NET MVC newby (and have limited ASP.NET experience anyway) but I'm trying to use this project to learn,
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Aug 4, 2010
I would like to make the "allow users" list in my web config to be pulled from a table for easier management.
[Code]....
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Oct 21, 2010
I am trying to implement the Ajax HtmlEditor into my application. I currently am using a regular TextBox to load and save some data to some EMail template files and had to do some work-arounds to get it to accept the HTML Input. I am trying to upgrade it to use the Editor, but as soon as I insert the Editor and do a PostBack, I receive the Security Exception below. There is absolutely no change to the code-behind, so I don't understand the issue. There is so little on Google for the Version 3.5 Editor that I'm stumped. I have Debugging enabled, but it won't give me the Soruce Error either.
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 failed. Source Error:
[Code]....
:: REMOVED FOR SIMPLICITY :: Stack Trace:
[Code]....
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Jun 16, 2010
I want to limit the allowed uploaded file types to images, pdfs, and docs. What is the recommended way to approach this?I assume checking the file extension alone is not enough, since an attacked can change the file extension as he wishes.I also thought about checking against MIME Type using PostedFile.ContentType.I still don't know if this is adding any further functionality than checking against file extensions alone, and if an attacker have and ability to change this information easily.This is basically for a course management system for students to upload assignments and teachers to download and view them.
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Nov 9, 2010
I'm a asp.net newbie trying to figure out how to do the following. I have a datatable. I want to extract the first row and perform a certain operation and a different operation on the remaining rows. How would I loop through the datatable to do this?
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Jan 8, 2010
Whenever I try to use the Website Administration Tool i get an error messege stating:
error invoking ad&minister website.
Details: The method or operation is not implemented.
How can I fix this?
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Mar 17, 2011
I need to perform update operation in a datatable without using loops. Is there any way to perform update in a datatabel...
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Jun 1, 2010
I have 2 web sites both located physically on the same web server, I'll call them siteA and siteB. These sites are accessed by internal users on our intranet as well as external users on the internet.
SiteA is is setup on IIS6 using basic authentication which we connect to an active directory. The web config is set to use Windows authentication mode. The url to site a is etoolbox.xxx.yyy
SiteB is the same setup. The url to siteB is rdow.xxx.yyy
What I want is once the user is authenticated against the active directory when the login to SITEA for them to be able to click the url in siteA which opens SiteB in a separate browser window and automatically takes them to the welcome page without being prompted for credentials again.
Currently when clicking on the url to go to siteB I am being prompted again for my credentials.
Is there any way for both external and internal users to only be prompted once for their active directory credentials and then be able to go to whatever site they want to without be prompted for credentials again? Is this something I have to code for or is it handled automatically by IIS?
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Jul 15, 2010
guys, i have an application that uses Active Directory Authentication and deployed the application several days ago without any error. Today, I got this error.please refer to the image. I find it weird because I didn't change any code to my webconfig file since i deployed the application to the server. I've notice that it's working if it's [URL](by opening the source file in server and debug it) however when i try to access the application through [URL] I'm getting this error. I'm using 2.0 framework And here's my web.config
[Code]....
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Nov 22, 2010
I have a website in asp.net 2.0 which write some thing on a file. But at the same time if another user hit that site it does not work till the first one operation on the file completed after that second one can do operation with the files.
AppConfiguration appConfiguration = new AppConfiguration();
string LogFile =String.Empty;
string sLogFormat =string.Empty;
string sErrorTime =string.Empty;
[Code]....
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