Security :: Permissions On Subdirectory 401 Error?
Dec 27, 2010
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.
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Jun 3, 2010
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.
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Mar 4, 2010
I 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.
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Feb 22, 2011
Here 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.
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Jun 18, 2010
I wrote an asp.net application that I'm trying to run on a godaddy domain I bought. I need to read a file in a folder that I did not give read access to so that your average user cannot see in the informaion in that folder. I assumed that the asp.net program would have the same credentials as myself because server-side code. Turns out I am wrong. When I go to use the asp.net application it throws an access denied error saying that the ASP.NET user account has to be given permissions to access the folder.
After talking to two different tech support people at godaddy I've come to the realization that they are either dumb or lazy (or a combo of the two).I came across some code that you can put into the web.config file that would allow the asp.net application to impersonate a user, which would work great to use myself as the impersonated user. However it seems that godaddy cannot give me the name of the server that my domain is on (that's understandable) so I don't know what to put in the identity tag to get this to work.
Here is the code I found:
[Code]....
(of course I filled in the username and password with the correct info)
When I went to use it again it threw this error:
System.Web.HttpException: The current identity (PHX3username) does not have write access to 'C:WindowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files'.
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Oct 14, 2010
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"
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Oct 7, 2010
I'm having two web.config files, one in my root directory(where all web pages of a project are found) and other in admin directory(that is located in root directory). But whenever I try to write <authentication>...</authentication> tag in web.cofig file that is in admin directory, I face the following error on building my project. It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
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Oct 14, 2010
I'm having two web.config files, one in my root directory(where all web pages of a project are found) and other in admin directory(that is located in root directory). But whenever I try to write [Code].... tag in web.cofig file that is in admin directory, I face the following error on building my project
It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
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Jul 7, 2011
I need to add a small training page to an existing website structure. I created a new project and published it to a subdirectory of the website, but when I run it, the .aspx pages throw a parser error because it's looking for the codebehind files in root/bin instead of root/subdirectory/bin. How can I make it look in the right folder?
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Feb 12, 2011
I created subdirectory Store in IIS 7 root page and converted it to application and added .NET 3.5 mvc musicstore sample to it. App pool is classic and isapi dll handler is added for request path *
Typing localhost/Store returns error below. How to run mvcmusicstore sample from subdirectory or from root directory using same code base?
Server Error in '/Store' Application.
Parser Error
Description:
An error occurred during the parsing of a resource required to service this request. review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Could not load type 'System.Web.Mvc.ViewPage<IEnumerable<Business.Toode>>'.
Source Error:
[Code]....
Source File: /Store/Views/Home/Index.aspx Line: 1
Version Information: Microsoft .NET Framework Version:2.0.50727.4206; ASP.NET Version:2.0.50727.4209
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Feb 11, 2010
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?
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Mar 24, 2011
I'm uploading an Excel file and then reading data using oledb connection in asp.net but I'm getting the following error: The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data.
Dim ocmd As New OleDbCommand("select * from [Sheet1$]", conn)
Line 12: conn.Open()
Line 13: Dim odr As OleDbDataReader = ocmd.ExecuteReader()
conn.open() line is red highlighted for error.
The excel file is uploaded successfully and present in the folder.
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Sep 13, 2010
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?
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Jul 16, 2010
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.
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Oct 5, 2010
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?
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May 3, 2010
how can we set grant or dynie access or permissions to folder by programming c# in asp.net?
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Mar 31, 2010
I have a file on the disk and I want to give Full Control Permission to all the users of that computer.
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Jan 16, 2011
I 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.
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Aug 21, 2010
I'm trying to send an email. My code is fine, but I'm getting a permissions error:
This is a server I'm administering myself, so I have access to the IIS 7 panel. The trouble is I don't know what to set to get mail working. Anyone got any experience of this?
My permissions error:
Access to the path 'c:7c5658db-d4cd-40cf-a686-6e9630e287f9.eml' is denied.
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.UnauthorizedAccessException: Access to the path 'c:7c5658db-d4cd-40cf-a686-6e9630e287f9.eml' is denied.
ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}ASPNET on IIS 5 or Network Service on IIS 6) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
To grant ASP.NET access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access._______________________________
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Nov 22, 2010
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
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Dec 9, 2010
My website is [URL] (access there to see error, please) When I was testing in VS2010, it was connecting to the DB because I set permissions READ/WRITE on my computer to ALL. If I put restrictions, VS2010 couldn't just connect to them. Well, I deployed my DB on the server of my website, and I'm not able to access it.
My connection string:
connection = New SqlConnection("Data Source=.SQLEXPRESS; Integrated Security=True;AttachDbFilename=|DataDirectory|Visitas.mdf")
I think I'm getting these errors because my server hasn't permission to access the database.
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Mar 3, 2011
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.
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Mar 23, 2010
I have a report that has authentication set to domain users and users can view the report. However a few of the users are getting permission errors when they try and export the report to excel. They are able to view the report, but cannot extract into excel? Has anyone ran into this before?They are getting this error:HTTP 401 ( You are not authorized to view this page).
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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 8, 2011
I am developing a web application using asp.net 4.0, vb.net 4.0 and Sql-Server 2005 as backend. I want to implement read only or read/write permissions for a particular logged in user. Ex : I have a Purchase order page, now I want to assign only view permissions to a particular user and read/write permissions to another user. what would be the best way to do it ? Use authentication and authorization provided by .Net or implement custom authentication and authorization ?
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