api - Obtaining a user's log in state for a Facebook Iframe App -

-

After creating a Facebook iframe app, the parameter passes to apply the Facebook pass parameter as a field within the query string Which is called FBI_sig, which is a unique signature that can only be made by Facebook.

The problem I am facing is that I can easily attach the query string to my application URL and I can use this application from anywhere on Facebook. Methods that Facebook APIs examine GET parameter / Kuki only for some values. Is there an API method that can actually return a Facebook user's logged-in status (which does not retrieve the parameter or cookie).

In my opinion this is a big security flaw because no one can track the requests of browsers and get a query string to access another user's account. Also the fb_sig parameter provided by Faby does not expire, so it can always be used to pass verification.

I thought about checking the HTTP_REFERER flag to ensure that the request is only coming from Facebook, but many people can SPOOF the referee and it can also disable any suggestions or Solution?

will return a user's uid . If the session is not running, you will not get a valid ID again.

Unfortunately, with the passage of the session, the flaw that you describe is not limited to Facebook, it is the nature of the WWW. The Any site that is based on your authentication on sessions is subject to the same defect, which you describe, whether the session token is being passed through the URL or the cookies if If you manage to regain session ID in any way (sniffing), it's still open, so whichever site you can use using that session ID is free to access it when till That may not be in place of some other type of security.

> The only real nature of HTTP security is SSL-encrypted communication.


Comments

Post a Comment

Popular posts from this blog

c# - ListView onScroll event -

-
I am programming a simple C # application, and I need a Scallow event on the list view. So I inherited the original ListView class created in ListviewEx witch. I found out how to locate the scroll message from WinAPI and I modified the WndProc method. Now I have this WndProc: protected override zero WndProc (Ref message message) {base.WndProc (Ref I); If (m.msg == WM_VSCROLL) {onScroll (This, New EventArgs ()); }} But the problem is, I do not know how to know about scrolling information. This data should be in wParam, but there is a LOWORD macro ++ like in C in C # and I switch to find the criteria like SB_ below, SB_ENDSCROLL, SB_PAGEUP etc. there any way Need to change the LOWORD macro from C #? Or any other way to find the necessary parameters about scrolling? You can define the WParam constants as the following: Private const int WM_HSCROLL = 0x114; Private Constant WM_VSCROLL = 0x115; Private contact int SBHOZZ = 0; Private Consultant SB_VERT = 1; Private Con...
Read more

PHP - get image from byte array -

-
I am trying to create a back-end for my mobile application. I am sending the content of an image in the body of the HTTP request (output stream) as a byte array, I want to read this stream of bytes in PHP scripts and take back an image. Can anyone tell me how can I do this? Thank you. You can obtain the request body $ body = Reading from file_get_contents ('php: // input'); What you do with that data Depending on you, you can write the data in a file as you mentioned that this is image data, you can drop the data into the object can do. Another option is to use and load the image.
Read more

Linux Terminal Problem with Non-Canonical Terminal I/O app -

-
I have a small app written in C to run on Linux. Part of the app accepts user-input from keyboard , And it uses non-canonical terminal mode so that it can respond to each keystroke. The section of the code that accepts input is a simple task that is called repeatedly in the loop: char get_input () {char C = 0; Int res = reading (input_tamille, & amp; c, 1); If (RSS == 0) 0 returns; If (res == -1) {/ * snip error handling * /} return c; } It reads a letter from the terminal if there is no input within a given time limit, (c_cc [VTIME] value in the vocabulary structure), read () 0 And get_input () is called again It all works very well, I have recently discovered that if you run this app in a terminal window, and then the app Close the terminal window without ending, the app will not exit Received, but CPU intensive launches into an infinite loop, where the read () returns 0 without waiting continued. So how can I get out of the apple if it runs from the terminal win...
Read more