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.
I am getting following error on uploading my pages on web server. it working file on my local machineRequired permissions cannot be acquired.
Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
[Code]....
I've recently installed VS 2003 to work on an existing web project (I already had 2005 and 2008 installed), but I'm getting an annoying problem when I try to run it. I get a browser page with an error message of:
Code:
Required permissions cannot be acquired.It then pinpoints the problem as being in line 198 of my machine.config, which is:
Code:
<add assembly=*/>
I've changed the ASP.Net version to 1.1.4322 in the appropriate places, and other people in the team can run the project happily using an identical machine.config (they used a copy of mine).
I found the problem "Required permissions cannot be acquired." when run ASP.NET application on Windows 7.After I search from the web, somebody reccommend me to add following<trust level="Full" / >nto Web.confitack Trace:
[Code]....
A client has sent me their web site and I got it to work on my local machine, but after hosting it on my website under a sub domain I get the following error:Required permissions cannot be acquired.did some searching and tried messing with the trust tag in web.config, but then that told me:This configuration section cannot be used at this path. This happens when the site administrator has locked access to this section using from an inherited configuration file.
View 1 Repliesot the following error when click print report button.Application : asp.net 3.5Crystal report : 10.5Host: godadRequired permissions cannot be acquired.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
[Code]....
I am using Itext sharp to create a pdf. I am adding an image and I keep getting this error
Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, ersion=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
it is this bit of code that is causing this
[Code]....
If i comment this out, the PDF builds and no errors are thrown (there is just no image)
I don't understand cause I am am trying to do is read a file.
I am trying to load some dll's into a MEF DirectoryCatalog within an ASP.NET MVC application:
var catalog = new DirectoryCatalog(HttpRuntime.BinDirectory, "Toptable.Mobile.*.dll");
When I run the app through the Cassini web server (i.e. F5) everything runs fine however when hosted in IIS(7) I get the following exception:
[code]....
The .NET trust levels for the application are set to "Full" both for the site and globally and I have set the trust level in web.config (system.web/trust) to Full.
It's a ?/$%/$%"!$ mess ... My webpage contains a winform user control. That user control send text to LPT1.It acts like an ActiveX. I set my website (on localmachine) as a trust one in IE and set all properties for ActiveX under security tab. The user control is showed under IE but I got a System.Security.Permissions.SecurityPermission when execute it.When I sign my control, IE can't display it ! I registered the dll in the .Net Framework Configuration tool
View 3 RepliesHere is my code
[Code]....
"fileUpload" is the FileUpload ASP.NET control. The SaveAs method writes the user uploaded file to a specified location on the server. IT WORKS. That tells me that the ASP.NET process has the proper write permission to write to the file.The next line uses an assembly called PdfSharp which you can use to open PDF files and manipulate them. In this case, the line simply opens up the user uploaded file. That is where the error occurs. WTH?
It works on my production machine. It does not work on my local machine. It USED TO. It was never a problem before.So why would it be fine to WRITE to the server, but trying to open a file give an error? Makes no sense. Googling yields a suggestion to put <trust level="Full" originUrl="" /> under <system.web> in web.config. It does not work.
There seems to be an issue with the "Trust" level when executing within a "Cloud" environment. In order for the following app to work it needs a trust level of at least "Medium." This web app is developed using VB.NET 3.5, and Visual Studio 2008. The app works perfectly on my local sever but when deployed/published to the "Cloud" it returns the error: System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. I have added all 4 required values, ConsumerKey, ConsumerSecret, OAuthToken, and OAuthTokenSecret to the web.config file in the "appSettings" section of the "configuration"
[Code]....
If found that by going to [URL] and signing into the account that is using the application, then go to the "Settings" page, go to the bottom of the page and click on the "API" menu option. Once the API page appears you will clik on the button "2", Register An App. On the right side on the new page, you will see a button "View Your Applications." If you have previously registered your app, click this button, If not fill out the appliction for a new app. Now at the View your Applications page, select the app you want to get the authorization keys for where is says "Edit Details". Now click on the button to the right that says, "Application Detail." Here you will find your Consumer Key and your Consumer Secret Key. On the right side of this page you will see the menu option "My Access Token", click it and you will find your oauth_token and your oauth_token_secret keys! Not that you have all the keys, put them in the "appSettings" section of the web.config file. Add "Dim twConn As New TwitterVB2.TwitterAPI" at the top of the page.
I then created a subroutine where I pass in the Tweet:
[Code]....
This code works great in an enviornment that allows at least a "Medium" trust level. However it appears that many of the "new" hosting envrionments such as "Cloud Hosting" and others do not allow this trust level automatically!However if the trust level is less than "Medium" on your host you will likely receive the error message: "Twitter Returned: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed." If anyone has found a fix for this "Trust Level"
Error:
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.
I have a dll which i downloaded from a lightbox website. It is in the bin folder But i get the error permission cannot be acquired.can anyone assist?
View 1 RepliesI 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
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.
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?
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.
I am doing some testing and want to find out best practice for creating a new user to assign to an appPool. I know that the default ASPNET account, on IIS 6.0, is very low permissions. For experienced folks, what are the bare permissions required to grant this new user? Yes, I am aware that various NTFS rights are required for different operations, such as reading outside of the application path, writing to the NTFS share, etc. I am just looking at a base install.
Dino Esposito wrote in Chapter 15 of Programming Microsoft ASP.NET 2.0 - Core Reference that the following directories would need the respective permissions:
.NET framework root - read/list Temporary ASP.NET folders - full GAC - read Windows System32 - access/read App root - access/read Web site root - scanWhat else would I need to set up beyond this base configuration as far as rights are concerned? If anyone does this regularly, do you have a script to do this automatically?
I've got a routine that tries to import files from an import directory, spitting them out to an Error directory if the import fails. The Error directory is shared and users have access permissions to delete files in there, so they can try to fix the problems and then move the files off to the import directory again. I use File.Move to move the files to the Error directory and this is working fine, apart from the permissions - it seems to revert to a default set of permissions, rather than the directory's one, and so the users can't remove the files - how can I reset the permissions on the file to those of their containing directory? I've tried poking around with SetAccessControl and SetAccessRuleProtection but I don't seem to be having any luck?
View 1 RepliesI am having trouble running a commercial ASP.NET application on a client machine. On most client machines this runs as intended, but for one machine I am getting a security exception as follows: Server Error in '/ElasSelfService' Application. Required permissions cannot be acquired. Description: An unhandled exception occurred during the execution of the current web request. Please 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. 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:
[PolicyException: Required permissions cannot be acquired.]
System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) +7602199
System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) +57
[FileLoadException: Could not load file or assembly 'Infragistics2.WebUI.UltraWebListbar.v8.3, Version=8.3.20083.1009, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb' or one of its dependencies. Failed to grant minimum permission requests. (Exception from
HRESULT: 0x80131417)]
System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +43
System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +127
System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +142
System.Reflection.Assembly.Load(String assemblyString) +28
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46
[ConfigurationErrorsException: Could not load file or assembly 'Infragistics2.WebUI.UltraWebListbar.v8.3, Version=8.3.20083.1009, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb' or one of its dependencies. Failed to grant minimum permission requests. (Exception
from HRESULT: 0x80131417)]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613
System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +203
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +105
System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +54
System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +229
System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +261
System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +101
System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +126
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +62
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +33
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +160
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +93
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
The website has a separate application pool defined for it running under the Network Service account. I have checked the settings for the virtual directory for the application but nothing seems wrong. I have tried defining the trust level in web.config to full trust but this does not fix the issue. I have looked into defining the trust level for the application through the machine.config file but I am unsure of how to proceed with this.
We use a build tool, TeamCity to do our builds. I have a directory locally with javascript files that works fine, but when its built and pushed to our test server and I try to get to any files in the directory I get: 401 - Unauthorized: Access is denied due to invalid credentials.
I've changed permissions several time on the server (2008/IIS 7) and still the problem persists. I have other directories that have javascripts and when I put the path into the browser for them I get the source.
I'm developing a managed module for IIS7. Assembly with my code is placed in GAC and worked fine within 2.0 pipeline. But with .NET 4.0 pipeline (and Medium Trust Level chosen) there are no permissions to read registry and code is unable to read/write
"C:Program Files<Folder>MyAppConfig.file"
Is there any way to grant my assembly with proper permissions to do this?
how can we set grant or dynie access or permissions to folder by programming c# in asp.net?
View 5 RepliesI have a file on the disk and I want to give Full Control Permission to all the users of that computer.
View 6 RepliesI want to remove execution permission for one folder in the site.
For example:-
I uploaded files to one folder called "Downloads" .
so, user can download those file just browsing "http://localhost/downloads/uploadfile.wmv". But problem is once user uploaded ASPX page (default.aspx). then user can browse like this http://localhost/downloads/default.aspx". In that, if he wrote so code for removing files..!. So, I don't want to run the script in this folder, I just want to show that file as text output.
Note:- This I can handle by using my own code to display files(ASPX, ashx and ....). But, I want to allow the user to access directly to that file.