Security :: How To Secure The File Attachments
Jan 13, 2011
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.
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Feb 8, 2010
I don't think the site has a web service available, so I need to pass the login credentials and read the xml file (e.g.https://www.somesite.com/needthisfile.xml). What do I use to do this?
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Oct 24, 2010
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.
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Jul 2, 2010
I have a web form that looks like a page for reading email, but it is used for reading messages from one user to another. Functionality, it needs to be able to download attachments that are send by other users. A user may sent up to five attachments (so five is the max per message) or none. If a user clicks the Icon pin, they should be able to see there attachments. So, my question is how do you do that? Any tutorials out there?
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Oct 8, 2010
Assumptions: Microsoft stack (ASP.NET; SQL Server).
Some content management systems handle user-generated content (images, file attachments) by storing it in the file system. Others store these items in the back end database.
Some examples of both:
[code]....
What's the best approach, and why? What are the pros and cons of keeping user files in the database? Is there another approach?
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Jan 14, 2013
I have made an application where I am displaying the .pdf , .doc , .docx files. These files are uploading from an Admin Panel.When user place a mouse pointer on download icon provided in front of every file, it shows the complete path where it’s get saved.I want to avoid this path visibility even when user place mouse on download icon and even if it Inspect an element (as most modern browser will have this functionality).
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Jun 7, 2010
i am creating a web app for a small buisness enterprise in which i have added a node in my menu (stocks) accessible to limited users
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<authentiaction mode='forms' />
<authorization>
<deny users='?'>
</authorization>
for these pagesin my web.config file now apart from that , how can i made it more secure using asp.net membership provider.
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Apr 9, 2010
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.
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Jan 24, 2010
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?
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Apr 30, 2010
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?
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Apr 22, 2010
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?
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Mar 11, 2010
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.
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Jul 4, 2010
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.
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Mar 1, 2010
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?
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Jul 13, 2010
I wish to do a simple and secure login form, for which I have seen tutorials keeping login information and roles set through the ASP.Net WebSite Administration Tool.
Is there any secure way to do a login page without using WSAT at all. provide me good tutorial links for creating a custom login form, having the capability of redirecting to login page if user is not authorized etc.
I don't wish to use the WebSite Administration Tool.
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Feb 25, 2010
I have a masterpage that contains a number of links. When I login to the secure area of my website, the links are broken they are trying to access the page as if it was stored in the SecurePages folder. Code below:
[Code]....
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Jun 18, 2010
i was just wondering how much secure is the Login System integrated within ASP.NET ? This is rather vague but i just wanted to know if a website using the system is rather protected to attacks.
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Apr 26, 2010
Code in DLL can only be obfuscated. IN my DLL how can I import a third party DLL into my DLL? Can I obfuscated the code but not the functions and sub header names?
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Nov 9, 2010
I'm using paypal to make payments for an online digital download purchase. Once the payment is accepted the person is redirected to a page where they can download the product. I need to know how do I make a page that can only be accessed once via redirect.
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Nov 11, 2010
I want to save the user_email and user_password in my website Session and clear it when loggin out but i wantg to know how secure it is to store passwords?
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Jun 10, 2010
I have a secure admin section in my website, only logged in users can gain access to this section, its controlled from the web.config file like this
[Code]....
This has all works perfectly well until now. Ive created a page that has an accordian control on it from the ajax control toolkit, as soon as I place this control on a page and run the web page, I get this error
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Jan 7, 2010
I'm trying to write a small application to collect(Scrape) one piece of data from a web site. I would like to be able to simply run the app and it will open the page, find the one piece of data and display it. So far so good...my problem is that the web site is a secure site, meaning I have to provide a user name and password. I've searched all over the web, found many discussions but have yet to find anything that provides specifics on how to accomplish this. I understand a little bit about tokens etc, but I'm really looking for a detailed description of how to do this. Please feel free to direct me to a different forum if I'm in the wrong place.
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Dec 30, 2010
How to secure the connection string in the webconfig the best way
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Feb 9, 2010
At the moment i,m working at a websit (ASP.net 3.5). I have build the project and till my surprise it is possible to reverse engineering the created dll's to the code (with Red Gate's .NET Reflector).
I have found several tools like Xheo and dotfuscator, but does there realy protected the created dll's ?? Does Microsoft have build a method to secure this ?? If this is not possible everybody can steal your code....
I have took a lot of time reading about this article, but is there a method or tool to make this secure?
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Feb 8, 2010
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.
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