Security :: Secure Online Access To Documents And Reports?
Mar 3, 2010
provide secure online access to documents and reports for their customers which entails creating a secure login for clients to access PDF documents to view and print. Aslo to display all reports available on web server.ould this be as simple as making sure username & password match an entry in a username table using select parameters(of course) theninstituting a Session("loginokay") = True along with something like Session.Timeout = ?
I am using NeatUpload file upload control: but issue can be generic i am thinking .. that's why posting on asp.net site...
Code works fine on my DEV machine (both file system and localhost) but when i deploy the code on Staging or Prod (on web server)... upload feature works fine but when I try to access the uploaded documents from staging server or Prod server, it says Access denied and cannot open the PDF document??
tried all the options but could not solve this issue... is this related to control or settings on my IIS...
before using NeatUpload(single upload) we were using microsoft upload control and it works fine in accessing the documents....
again upload works perfectly fine... the issue is accessing the documents..
I have read that the best way to secure images from being access would be to place them into a database rather than into a file system or virtual directory. Is this correct? I am creating a site that needs to have the images the user upload be secure as possible. I initially programmed the images to be uploaded to a database then I reprogram the site to have them store in to a file system/virtual directory. I'm still up in the air in terms of which one to use. Again, security is my primary concern.
I have a custom mini login user control that I have embedded in the top of my website which shows on every page. These pages are non-secure HTTP://. I would like to avoid having to redirect the user to a HTTPS page to perform the login but I definitely don't want to send login credentials to the server in plain text.
I am trying find a method to send the user's login credentials encrypted via https from a non-secure (http) page.
I tried to set the postbackurl for the login button to itself but in https, but the user's input is not retained and the buttonLogin_click is not fired when I set the button postbackurl property. My ASP.net web application is VB.Net framework 4.0
I am assuming this can be done because I see lots of websites where login fields are on available on every page and they are running http and I can believe they are not encrypting the login credentials.
I have an ASP.NET site at work that uses a SQL Server 2k database.
Some pages on the site have buttons to export data via Crystal Reports and the user has the option to save or open. I also export to MS Excel using Response with content type.
Everything works fine until the workload increases and many documents are exported. What happens is that the site stops exporting when the buttons are pressed. It simply does nothing.
you can still use other features of the site but no exporting.
the only solution i've found so far is to restart IIS (Hosted on a Windows 2k3 server).
this only lasts about an hour or less and i have to restart again.
I'm working on a website where it should be possible for registered users to upload word documents. The administration of users is done through Membership and Profiles. When the documents have been uploaded, the following needs to be achieved:Non-registered users should not be allowed to download documents I should be able to control which users that has access to which documents I should be able to register which user downloads which documents I should be able to track how many times a document has been downloaded Can this be achieved be using Membership and Profiles?
I have been working on ASP.NET3.5, AJAX, C#, SQL for the last 1 year. But for now i want to learn crystal reports. I m totally a newbie. provide me with complete online tutorial?
There is an ASP.NET application www.example.com/APP. From within the application several documents - for example office documents DOCX, PDF, etc. - can be opend. They are accessed via some virtual directory as in www.example.com/APP/VIRTUAL/letter.pdf.
Of course, the documents may only be accessed from within the application, after the user has been identified succssfully. Some documents may only be opened by some privileged users. It should be impossible to open letter.pdf by simply entering the above url into a browser
I am thinking about the following...
The name of the virtual directory is kept secret. After the user has successfully logged into the application, some secret is created. The secret contains the user's ID and some time information (valid from / until). Then, if a document is to be referenced from within the application, the url www.example.com/APP/<secret>/letter.pdf is referenced. In IIS the secret is checked. For this, some of my code is called, when serving a request. If successfull, the url is rewritten as www.example.com/APP/VIRTUAL/letter.pdf. I tried several components, such as the IIS URL Rewrite, IHttpModule, IHttpHandler. Unfortunately, I did not yet succeed.
Working on my first asp.net webpage. i have followed video tutorials and implemented asp.net membership for login/security.Using Visual Studio 2010 i can open the Asp.net configuration page for management locally.But then if I want my site admin to manage users/security online, how is this done? Like manage through a web browser. I guess this asp.net configuration GUI is not available on the internet?
I am learning to use asp.net to design a web site and i am not quite sure if the way i access the data base is appropriate. could you guys give me some comments ?
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in web.config , i have a connection string like this,
We have a swf file that we want to secure and make available only to authorized users.
I embedded the file in an aspx page and that works fine, since ASP.NET handles the aspx page, I can use ASP.NET authorization features and in the web.config restrict the access to roles="AllowedUsers" for example.
However smart users could still get to the file by accessing directly for example www.mysite/flash.swf. We want to make that kind of access secure.
I have an MVC app that uses [Authorize] to protect the private bits. When I select the SignOut() URL it signs me out but if I hit the back button on my browser the it goes to the secure page and even lets me use the form. The action takes place and then it shows that I'm signed out. The problem is that it performs the secured action (inserting a row into my database). Then I can use the back button again and do it all over. If I use the back button after logging out and hit the browser refresh it does show I'm logged out and refuses me access to the secure page. Am I missing something important? It seems like it could be a really big security issue.
public ActionResult LogOff(string ReturnUrl) { FormsAuth.SignOut(); if (!String.IsNullOrEmpty(ReturnUrl)) { return Redirect(ReturnUrl); } else { return RedirectToAction("Index", "Page"); } }
We need to secure how our web application access our SQL 2008 database on our hosted server. Any pointers where this is covered in detail? We have the following questions:1. right now the network service account runs the application pool containing our application in IIS. Should we define a local windows user account to run this application in IIS 6? Should we switch to Windows authentication?
I'm creating a ASP.NET/SQL Server 2005 Express app which requires users to upload supporting attachment or documents in .docx and .pdf format. The web server is IIS 6/Win 2003. I'm trying to come up with a good way of securing these documents so anonynous users cannot see them and creating a separate Windows login for every user is not an option. SQL Server Express does not have blob data types. I'm storing each user's authentication information in the SQL database and not really using forms authentication.
I would like to send email securely to third party with attachments containing sensitive info. The website is configured with SSL. I'd like to know how to send email securely via asp.net app.
i have asp.net 2.0 web site and in the main root i have some secure pages so if any unauthenticated user try to visit my page the browser redirect him to login.asp page (it was correct) but in my web i have subfolder named (Admin) and i want to secure all pages under this folder and redirect any user to new login page. how can i do it?
I've got IIS 6 with a self-signed certificate installed. This is now securing the whole site (all urs are HTTPS). How do I only apply HTTPS to logged in areas, leaving publicly viewable data with HTTP?
I'm auto-generating a form in my ASP.NET page. This is already tested and working. I want to know if:If there are any security problems with storing the database ID as part of my controls ID? I can see think of 2 issues: the id will be visible in page source (not really important in this case), and the possibility someone could change the name of the control somehow? This second possibility is more serious. Is this a potential problem and how to void it?If there would be a better preferred way to associate a unique data with any type of control? Is it possible to store a custom item in the viewstate for the control?
I'm building a forgot password feature for my first secure backend.
I want to email a url containing an encrypted parameter to the user which will lead them to a password reset form that can only be accessed via the url with the encrypted parameter.
But what if the email gets intercepted?? then anyone who intercepts it will have the link to the reset page.
Is there a way I can send a secure email? I know nothing about email really. Is it even possible to send a secure email? Can I encrypt the email, will that help? But if it is encrypted then how does the recipient read it?
From what i know Random() is initialize to the current time. If two connections hit during the same second i should get the same two random numbers? With a large site that can be likely. Locking is bad so how should i solve it? note: the number is used for the session id.
-edit- i am stuck using a long. It feels wrong to shorten a 128bit GUID
In my environment, we use Active Directory as our password repository. I'm writing an app that uses the users windows session (windows auth) to authenticate the user. This is working well, but I need to provide a way for users to log in as a different user. I setup a web form to accept a username and password. My question is this, I need a secure way to validate the user's credentials against AD. I cant have the credentials passed as clear text. Ive come across the impersonate user functions, but i'm leary because you have to pass a clear text password into the password field. I know I could also use LDAP, but without a certificate, I know plain LDAP is relatively insecure. Can someone point me in the right direction of a more secure solution to query AD with the credentials?
