SQL Server Security Setup For Web Application Access
Jun 6, 2007
All:
I am writing an Internet/Extranet based (ASP.Net 2.0) web application that uses SQL server 2005 as the database. I am using forms authentication on my web application. I am also storing the connection string to SQL server in my web config file. The conn string is encrypted using DPAPI with entropy. I currently have created a SQL login account on my SQL server for use by the web application. This is the user ID I am using in my conn string. The reason for this is because all persons using the application will NOT have a windows login.
Here is my question: The login I created currently has defaulted to the "dbo" role and therefore has "dbo" rights to the database. I want to setup up this login account so that all it can do is execute stored procedures. I dont want this SQL login to be able to do anything else. In my application I am using stored procedures for ALL data access functions, via a data access layer in my application. Can someone guide me step by step as to how to setup this type of access for this SQL login.
Thanks,
Blue.
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Nov 17, 2007
Here is my situation: I am creating a database driven ASP.Net web application that will be used over the internet. My ASP.Net application connects to my SQL server 2005 database/server by using a SQL server login. I am using the DPAPI API to encrypt my connection stings with a hidden entropy value for extra security. I am using the SQL login for obvious reasons, as my users will not have a windows login.
What I am trying to do: I want to limit this SQL login account to be able to just run/execute stored procedures and NOT access the tables or views directly. In my ASP.Net application I am using the MS applications data block, and I am using stored procedures for every single database access action. There is no inline SQL being executed from my web application.
What I have tried so far:
I created a new schema and made the above SQL login account owner of this schema. I then granted "Execute" permissions to the SQL login and DENY permissions to all other permissions.
I created an database role with "Execute" only permissions and DENY permissions to all other permissions.
What Happened: In BOTH of the above scenarios I tested a direct SQL statement against one of my tables, from my ASP.Net application and I was able retrieve data back, NOT GOOD, exactly what I am trying to STOP.
If someone could give me (Step-by-Step) guide on how to setup the situation I am looking for, I would be very grateful!
Thanks to all that help!
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Apr 13, 2004
Hi all
If i wanted to set up my SQL Server DB to run in an Application Server environment (i.e. clients connecting to a remote server)
would i be required to give every user a WINDOWS SERVER logon as well as a SQL Server logon or would i only need to setup just a SQL Server logon for them?
(obviously using SQL Server Security opposed to NT Integrated Security)
Thanks in advance for any help
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Jun 5, 2007
All:
I am writing an Internet/Extranet based (ASP.Net 2.0) web application that uses SQL server 2005 as the database. I am using forms authentication on my web application. I am also storing the connection string to SQL server in my web config file. The conn string is encrypted using DPAPI with entropy. I currently have created a SQL login account on my SQL server for use by the web application. This is the user ID I am using in my conn string. The reason for this is because all persons using the application will NOT have a windows login.
Here is my question: The login I created currently has defaulted to the "dbo" role and therefore has "dbo" rights to the database. I want to setup up this login account so that all it can do is execute stored procedures. I dont want this SQL login to be able to do anything else. In my application I am using stored procedures for ALL data access functions, via a data access layer in my application. Can someone guide me step by step as to how to setup this type of access for this SQL login.
Thanks,
Blue.
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Feb 19, 2007
Last night at home on my 64 bit Vista machine, I encountered the same error 29506 that said that the management studio express could not be installed. I looked up the error message and below is what I received. I also installed the 64 bit .net framework which installed just fine before trying to install the SSSME.
I followed the instructions below but this did not seem to make a difference. However, I did not reboot after applying new permissions. I have installed this software a few times now on 32 bit machines for both XP and RC1 Vista, and have not had a problem. Last night, I did use the 64 bit version. Also, there is no data file yet because after the install it rolls back, so I gave myself Full permissions on the SQL server directory which should include all sub directories, right? Thanks, Teri
Error 29506.
SQL Server Setup failed to modify security permissions on file Drive:Program FilesMicrosoft SQL ServerMSSQL.xMSSQLData for user SYSTEM. To proceed, verify that the account and domain running SQL Server Setup exist, that the account running SQL Server Setup has administrator privileges, and that exists on the destination drive.
Note A SQL Server service pack refers to SQL Server 2005 Service Pack 1 (SP1) and later service packs.
CAUSE
This problem occurs because one or more data files exist that do not have the required permissions. By default, the Full Control permission of the Administrators group is granted to the data file when you create a database. If the permission of this group is removed from the data file, the SQL Server 2005 service pack setup will fail.
RESOLUTION
To resolve this problem, grant the Full Control permission to the Administrators group on all data files and on the Data folder. To grant the Full Control permission to the data files, follow these steps:
1.
Locate the folder that contains the data files. By default, these files are located in the following folder:
C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLData
2.
Right-click the data file that has no required permissions for the Administrators group, and then click Properties.
3.
If the Administrators group is not in the Group or user names list, click Add, type Administrators, and then click OK.
4.
Click Administrators in the Group or user names list, and then click to select the Allow check box for the Full Control item in the Permissions for Administrators list.Note If the files in the Data folder have an orphan owner, you have to take ownership of the files and then grant the Full Control permission to the files. We recommend that you do not change the default permissions for the data files.
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Jul 6, 2007
I have Sql Server Express installed on Vista (service pack 2)
I have Visual Studio 2005 with an application that I'm trying to access it with within a WCF service.
The login ID of the service is added to the database.
The database has remote access turned on.
The ID is granted access to all databases within the server.
The thread is being set with WindowsProvider and the services set their thread to WindowsProvider.
The dataserver is set with using Windows Authentication for security.
When I open my connection to the database, though, it reports the typically useless message that the connection is not allowed and that the server may not allow remote connections.
How to I get past this? I've done everything right.
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Aug 15, 2007
Received the following error while installing SP2
MSI (s) (D8!A0) [21:07:09:062]: Product: Microsoft SQL Server 2005 -- Error 29506. SQL Server Setup failed to modify security permissions on file C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLData for user Administrator. To proceed, verify that the account and domain running SQL Server Setup exist, that the account running SQL Server Setup has administrator privileges, and that exists on the destination drive.
Tried running install with a domain account and local account with same results.
Based on the error message, I checked permission on the drive and still received the same error.
Followed resolution based on KB 916766, this did not resolve the error.
Only possible resolution I found was to disable UAP, reboot and retry the install. This will be done as a last resort, but any other suggestion will be appreciated.
Many Thanks
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Jun 8, 2007
Dear Helpers,
I can not setup SQL server 2005 express and the full trial version as well.
The setup progress stops at "setting file security", and nothing happens. I dont even get an error message.
This is very annoying. I have local administrator access, so it should work. Op system: Windows XP professional.
Machine: Hp Compaq dc7700p, 1 GB RAM, 80 GB HDD
Thanks for your help in advance.
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Dec 6, 2000
Hi,
Can anyone tell me how i can access an application or open tables in MS sql server that are in MS Access. Its urgent and any help will be appriaciated.
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Apr 27, 2006
Hello all, We have a SQL database that uses a MS Access projectfront-end, which I am now creating an ASP.Net application for (And am completely new to so may be missing some foundation concepts). With the Access project I added Active Directory groups to the database to use for permissions, logins, etc. For the ASP app I have it set to use Forms authentication with Active Directory (ActiveDirectoryMembershipProvider). I can login to the app with the AD usernames/passwords but the connection from ASP.Net to SQL is using the ASP User. Is there a way to provide the authentication from the ActiveDirectoryMembership through to the SQL server, so the user: bobuser would be authenticated to SQL instead of ASPNETUSER?Or do I need to have the ASP.net app handle the permissions of which SP's a user can execute?Any help or suggestions are appreciated.Thanks,Jamie.
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Feb 7, 2005
Hi,
I have recently transfered data from MS Access to MS SQL Server 2000 and created user interface in MS Access Project (ADP). Now I need to secure the data on server and want to access it ONLY through interface I created in MS Access. Every user has to log in the application (user id and password). Users may have the same access rights to the server (so maybe just one account or whatever I need for all of them). Can anyone advice me how to set it up? To access sql server from MS Access I am using ADO.
Thank you.
dj
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Oct 14, 2005
Hello there I have trying to figure out for days how to enable FullTrust for my Reporting Services security extension.
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Jul 12, 2000
Hi all
Certain people in our company want to use Crystal Reports for data-processing. Problem is we want them to NOT be able to access data in databases within the live server.
Given that we use trusted connection to validate all kind of data-access, I am wondering if there is a way so that (via NT administration or via some SQL Server security features)
the live-server can refuse any connection request from the Crystal Reports application. At the moment the same group of people are allowed access to database (and should remain to be so) on this "live" server via some other applications (e.g. Microsoft Access).
Any advice is welcomed.
Simon
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Jul 20, 2005
Hi there,I have written an application which uses MS Access for it's database engine.Due to the large size which the database has become I have decided that itwould be sensible to use SQL Server with the application instead.I am an extreme SQL Server newbie so I am not really sure what I'm doingyet! I have successfully downloaded and installed the MS SQLDE 2000 andservice pack 3.What do I need to do next? Ideally I would like to convert the existingAccess database to MS SQL Server format. Also I would like to know if it ispossible to create an SQL Server database from scratch using a guienvironment similar to Access and if so which software (preferably free) doI need to achieve this?Many thanks,Clive.
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May 19, 2006
I have installed the SQL Server 2000 and its up running.
I can connect to the database direct as administrator, but my test application(asp.net 2.0) returns an exception.
SqlConnection sqlConn = new SqlConnection("data source=10.61.90.24;initial catalog=testdb;persist security info=False;user id=sa;pwd=data;Type System Version=SQL Server 2000;");
sqlConn.Open();
I receive this exception:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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Aug 22, 2001
In the process of reviewing all Security access into our production servers, I found a user login name of 'BUILTIN/Administrators' with the type 'NT Group' in our production DB. I am not sure whether this Login was setup automatically when SQLServer was installed or it was setup by the administrator, who is no longer with the company? I was able to find out all the users in the Administrators NT group, but what threw me was the word 'BUILTIN' . Are there other Logins besides 'sa' that get setup during the install?
Thanks.
Helen
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Feb 18, 1999
I have tried several times to install SQL server onto an NT4.0 server which is more than capable of having more than one application to cope with, however, when going through the install procedure the programm stops with the following message
DR.Watson
Access Violation
Setup.exe
In address :
Any hints as to where the problems lies or point me inthe right direction would be appreciated.
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Feb 16, 2005
I have a ASP.NET time sheet management application I designed - today I put it live on the webserver and recreated the database on my SQL 2000 server. When I attempt to view, all of the pages where I query the database I catch the error "SQL Server does not exist or access denied".
The concerning part of this is that I have tested the live database from my development PC (remote - offsite) and it works fine. This shows that the database that I brought over is intact and the user has the appropriate permissions. The only thing that I changed in the application when I copied it to the server was the connection string server name to reflect the location change.
The setup is as follows:
Development PC on a broadband connection running Windows 2003 server enterprise, SQL Server 2000 SP3a, Visual Studio 2003 Enterprise.
Web/Database/Email server running Windows 2003 Standard, SQL Server 2000 SP3a, Exchange 2003, Active Directory, DNS etc.
When I run the application on the Web server from a browser with local names ie. http:\SERVER1application I get the "SQL Server does not exist or access denied" errors. When I try to connect to the application on the web server from my development PC i get the same problem.
When I changed the connection string on my development PC to the webserver/dbserver it runs fine.
I don't understand how a local proccess is having difficulty authenticating to the database when I can access it remotely just fine.
Anyone have any suggestions?
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Jan 9, 2007
My database knowledge are with MySql and Oracle, but recently I was asked to evaluate the migration of an existing (and maybe more) from ms access to sql server. My question is simple, if all of the sql are hard coded into the code ... how well this sql will work, I mean is the sql between access and sql server are plug'n'play ? However in any case, I always rewiew all of the sql.
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Jul 23, 2005
First off, sorry if my cross posting offends anyone. I'm posting thisin Access and SQL Server groups - not sure which one is appropriate.I have a relatively simple ASP.NET/VB.NET application that is nowhitting an Access 2000 database over an intranet. We have to migratethe database to SQL Server 7. My experience with ASP.NET is prettylimited and my experience with SQL Server is nonexistent.We have an MSDN subscription, so I went to the downloads section to getSQL Server 7. Guess what? SQL Server 6.5 is available, as is 2000 and2005, but no SQL Server 7. So my first question is, does anyone know ifit is available for MSDN subscribers?The next question is, does anyone know of a good resource that explainshow to make the transition from Access 2000 to SQL Server 7? I know thedata has to be migrated and the connection between the application andthe database modified, but am really not sure exactly what to first andthe correct way to go about it. The application is a simple productconfigurator. There's not a lot of data and it's not a very complexdatabase.Thanks in advance. If you'd like, please copy responses tolcifers(AT)yahoo.com (AT) = @TIA.Cheers.- Luther
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May 8, 2007
Hi guys
I'm writing a C# application which connects to a local SQL database for data access. The application connects to SQL Server through windows authentication, but opens up the port and sqlbrowser to others on the network wanting to access the database through SQL Server authentication, and also allows remote users to connect to this server remotely if they have the login and password (and because the port is already open)
I understand this is not secure and open to attack, and am unsure of how to secure these processes without blocking these three types of access, from A.) the local user, B.) the network user and C.) the remote user across the net.
Have researched this a fair bit, but get somewhat lost amongst all the jargon.
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Jun 6, 2006
Hi,
first time poster/newbie here.
I've
got a football (soccer for the yanks!) predictions league website that
is driven by and Access database. It basically calculates points
scored for a user getting certain predictions correct. This is the URL:
http://www.pool-predictions.co.uk/home/index.asp
There
are two sections of the site however that have almost ground to halt
now that more users have registered throught the season. The players
section and league table section have gone progressively slower to load
throughout the year and almost taking 2 minutes to load.
http://www.pool-predictions.co.uk/home/players.asp?tab=a_d
http://www.pool-predictions.co.uk/home/table.asp
All
the calculations are performed in the Access database Ive written and
there are Access SQL queries to get the data out.
My
question is, is how can I speed the bloody thing up! ! Somone has
alos suggested to me that I use stored procedures and SQL Server to
speed things up? Ive never used SQL Server before so I am bit scared
about using it (Im only a hobbyist), and I dont even know what a SP is
or does. How easy will it be upgrading the whole thing to SQL Server
and will it be worth the hassle, bearing in mind I expect my userbase
to keep growing? Do SP help speed things up significantly? Would
appreciate some advice!
Thanks in advance,
John.
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Dec 7, 2000
Does anyone know of a component or other mini application that can be run on the IIS server and allow IIS to access SQL Server 7 databases using Trusted Security.
Our security unit has required us to run SQL Server with Trusted Security so changing to Mixed mode is not an option. We are also not allowed to use Basic Authentication for Active Server Pages with IIS. IIS and SQL server are also on different machines.
We are looking into the possibility of trying to create a component that would run on the IIS machine to allow us to use Trusted Security to the SQL Server (in effect try to make it work the same way that the Cold Fusion product does).
Any help would be really appreciated.
Thanks
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Jun 8, 2007
Is there a way to implement Access-like password protection on a SQL Server Express dataset?
The database will be deployed on individual's PCs with no centralization of control. I want to restrict users from being able to see table definitions, stored procedures, etc. Access-like password protection is what I want, but I don't see any similar feature within SQL Server Express. Am I missing something?
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Dec 16, 1999
We are working on a new Payroll server. Our payroll department wants to lock out MIS and SQL Admins as much as possible. What we would like to do is allow the SQL Admins to still perform admin tasks such as backups, audit tracking, etc, while not being able to get into the tables. Also, we would prefer to do this security at the database level, rather than the server level. Any thoughts on this?
Tim Davis
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Dec 3, 2013
We have applications connected to SQL using windows authentication. While having connection with Application user can also access to Database instance on the same time as well. We need to limit the access of user outside application.
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Feb 11, 2008
I receive the following error when i call report server web service from an asp.net application:
"The request failed with HTTP status 401: Unauthorized."
Here are the IIS logs on the reporting services server. When i open IE and browse to the web service i provide my user credentials and i can access the web service just fine. However when i call the web service via my asp.net application it looks like my credentials are not being passed??
Browsing web services via internet explorer.
2008-02-11 21:26:13 W3SVC1836052065 HQSQLDEV1 10.69.21.140 GET /Reports/images/16fold.gif - 8080 triwestdbloom 10.69.21.140 HTTP/1.1 Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.2;+WOW64;+SV1;+.NET+CLR+2.0.50727;+.NET+CLR+1.1.4322) 10.69.21.140:8080 200 0 0 15
Call from ASP.NET App
2008-02-11 21:26:13 W3SVC1836052065 HQSQLDEV1 10.69.21.140 GET /Reports/images/16fold.gif - 8080 - 10.69.21.140 HTTP/1.1 Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.2;+WOW64;+SV1;+.NET+CLR+2.0.50727;+.NET+CLR+1.1.4322) 10.69.21.140:8080 401 1 0 0
Here is my code:
RSWebService.ReportingService rs = new RSWebService.ReportingService();
rs.Credentials = new System.Net.NetworkCredential(@"triwestdbloom",
"blah", "triwest");
//rs.PreAuthenticate = true;
//Get all folders
RSWebService.CatalogItem[] allItems = rs.ListChildren("/", false);
//Get only folders not hidden to the user.
List<RSWebService.CatalogItem> visibleItems = new List<RSWebService.CatalogItem>();
foreach (RSWebService.CatalogItem item in allItems)
{
Response.Write(item.Name.ToString());
}
Any ideas?
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Jul 27, 2006
Hi Everyone,
I have a software solution that consists of two separate applications that share a SQL Server Express database on a single computer. Everything is working great, except when both of the applications want to access the database at the same time. All I can find is information on configuring multi-user access in a distributed system. I'd appreciate any information on configuring multi-application access on a single computer.
Thanks,
Mike
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Jan 23, 2004
Hi, this is my first post (hopefully of many) on this board. Just wanted to say a quick hello before I dive into my question. :)
As the title suggested, I have to develop a MS Access form app (yes, it has to be Access - I know it sucks) that will post and query data to and from a remote SQL Server db. While I have no problem linking the two through the default ODBC drivers, my question is security. Some (actually most all) of the data being passed back and forth is sensative information, and I would like to know the best way to keep it safe.
If anybody has any suggestions, instructions, or can redirect me to a good FAQ site on the subject, I would be most appreciative. I have already done a search on these forums for an answer, but have sadly come up short.
Thanks to all in advance!
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Oct 19, 2007
If I am posting to the wrong forum, please point me in the right direction.
We have upgraded to SQL Server 2005 and Window 2003 from SQL Server 2000 and Windows 2000, and have been having all kinds of problems with security of our web applications. We have been forced to put the system account of the web server as a user in the database in order for the web applications to work. We have lost the ability to control security at the user/role level. Is this the way security is going to work in Windows 2003/SQL Server 2005? How do I use integrated security so that I can secure web pages and database objects?
Thanks
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Jun 29, 2007
Hi,
i'm trying to install MS SQL 2005 Enterprise Evaluation Edition, on my Win XP Pro SP2 (Intel Centrino 1.73Ghz, 1GB RAM)... i have downloaded the self-extractable file (SQLEVALX64.EXE) from MS website... After extracting this file to a folder and clicking on "setup.exe" - resulting in "setup.exe is not a valid Win32 application" error message...
What wrong in my installation...
Cheers
Venu
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Nov 29, 2007
We are using SQL 2005 / Windows Server 2003 / Sharepoint portal.
Our reports are used through Sharepoint. I have added a web part which displays the folders. There are several reports within each of the folders. Users that have access to the Sharepoint site have access to all of the reports that are available in all of the folders. I would like to control folder access through SSRS.
What is the best way for me to accomplish this?
Thanks in advance.
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Jan 29, 2007
Hi guys,I'm not sure if I'm just bad at googling but I can't seem to find a way to set an ASP.NET 2.0 web application to connect to SQL Server 2005 using the current client's user credentials. My web application is using Integrated Windows Authentication so its Page.User.Identity is set to a DOMAINusername value... I want to pass that to my connectionstring or have my connections pick up the identity automatically and use that Identity when accessing the db server.Oh and another thing, my IIS Application Pool is using a specific Identity itself, so I don't know if that might affect the above.Hope someone could help.
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