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Facebook Iframe Session Key

 
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MessagePosté le: Jeu 11 Jan - 00:46 (2018)    Sujet du message: Facebook Iframe Session Key Répondre en citant




Facebook Iframe Session Key
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The application should only be available on the internal network. The source of the resulting page will then contain: . The session secret. More information on server side integration with Facebook Connect applications can be found here: . Application servers can be attacked directly, and the minor protection mechanisms the platform sandboxing provides can sometimes be bypassed. This way, if an attacker attempts to send a forged request on behalf of their victim, the request will fail because the attacker will not have the victims current password. When a user accesses the application canvas page, the Facebook proxy pulls down the FBML from the application servers and translates it into HTML before rendering in the users browser. This token can be sent in a hidden form field with each request. Lock down administrative functionality. If the SWF needs to communicate to servers other than its domain of origin, the crossdomain.xml policy file must be in place to grant access. The hosting page takes these Facebook parameters and passes them to the Flash application as flashvars. Facebook Connect Applications. Developers of a Facebook application can set certain users to be administrators and moderators of the application. (See because the browser will automatically send cookie values with the request, thus the attacker does not need to guess the value, and the structure of the request remains predictable. The application can still use the Facebook API by using Facebook Connect and transferring the session to the server side API for calls which require the application secret. Administrative Functionality. FBML. The session transfer process is described in detail here: . This signature can in some cases also be checked to provide protection from Cross-Site Request Forgery (CSRF) attacks when it is sent in the GET or POST parameters. While output encoding provides strong protection against XSS, it is best to perform data validation before encoding. The malicious user can then exploit this vulnerability against other users by creating a request such as the following: . Always perform signature verification using server code. This will be important to take into account when deciding on your method of integration with the Facebook platform. Join Stack Overflow to learn, share knowledge, and build your career. Is a verbal response that directly expresses anger always the wrong choice? Running a shell script when "/bin/sh" points to "/bin/bash" Is standing actually illegal in Venice? Lens hood visible when shooting in RAW, but not in JPEG Only Three Books: Restarting Physics after civilization collapses Need out-of-game solution for spell choice paralysis How to check if string contain alphabetic characters or alphabetic characters and numbers? Count the possible ways to seat people at a table Did any computers use the Z80B? Dealing with aggressive student suspected to be cheating Why is the kit zoom lens for Olympus so much smaller than that for Nikon? Divide column of a matrix by a specific number What is a Green Word? Speed of two trains travelling side by side Printing without parentheses varying error message using Python 3 Is it accurate to compare the nuclearization of North Korea with that of Pakistan and India? Why or why not? more hot questions question feed default . To better understand the issues facing Flash applications, let us consider a fictional Flash based iFrame platform application called Goatworld, which is a game where players build teams of goat buddies with their Facebook friends. Any ideas? PHP: requireonce('facebook.php'); define('APPID',"276733022359677"); define('APPSECRET',"xxxx"); $myurl = URIB."/spider/"; $config = array(); $config['appId'] = APPID; $config['secret'] = APPSECRET; $facebook = new Facebook($config); $fbid = $facebook->getUser(); if($fbid == 0){ $scope = ""; header("Location: ".$facebook->getLoginUrl($scope)); } Javascript: FB.init({appId: "276733022359677", status: true, cookie: true}); function publish() { var obj = { display: 'iframe', method: 'feed', link: ' name: 'Test', caption: 'Test Caption', description: 'This is a test.' }; FB.ui(obj); } I also get an unspecified error at the login page (if redirected there to log in). Because the Facebook platform is different than traditional application platform, securing administrative functionality can be confusing, and some compromises have to be made. Without using HTTPS there can be no such guarantee. asked 8 years, 7 months ago viewed 13,428 times active 3 years, 9 months ago Blog Take the 2018 Developer Survey Farewell, Winter Bash 2017! Visit Chat Linked 1 Retrieve JSON maintaining Browser Session Related 9Accessing third party cookies in Firefox4Manually start session with specific id / transitioning session cookie between domains395Do sessions really violate RESTfulness?37PHP Sessions with disabled cookies, does it work?382How to do authentication with a REST API right? (Browser + Native clients)4Rails ActiveRecord store and new session11Detecting Rails 4 Session cookie tampering1Rails 4 sessions cookie is not set0Globally have access to session in rails0How to store the flash in a different cookie to the Rails session? Hot Network Questions Body not a variable of ContentVersion? SQL correct way of joining if the other parameter is null Can you share some screenshots of editor's control panels? Is this a real photo of Australia? Why is the resistance of an ideal voltmeter infinite? Unable to remove a cross-threaded water hose Why don't ICs include bypass capacitors? The length of coil winding on cylinder. Configure restrictive crossdomain.xml policy file. How do we access the damn name of the cookie from anywhere? Or at least from within a controller? ruby-on-rails session cookies shareimprove this question asked Jun 16 '09 at 13:46 jimeh 71611129 add a comment 8 Answers 8 active oldest votes up vote 30 down vote Rails.application.config.sessionoptions[:key] shareimprove this answer edited Nov 17 '13 at 4:08 answered Feb 10 '12 at 8:55 Shamaoke 3,82162536 1 This worked on Rails 4.1.6 –kuboon Nov 15 '14 at 4:49 add a comment up vote 12 down vote accepted I found the solution. This allows the attacker to discover the Facebook friends of other users, in addition to providing them with a way to cheat in the game. The application secret must never be hardcoded in the source of an iPhone application. Not the answer you're looking for? Browse other questions tagged facebook session iframe dialog or ask your own question. One of these parameters contains the URL to which the user will be redirected after they successfully login. The following section will cover a few common web application vulnerabilities where specific care needs to be taken in order to protect Facebook applications. Most class libraries include functions for performing output encoding. When Facebook passes information about the user and session to your application in the Facebook request parameters or cookies, it may be tempting to use that information directly from the request. In FBML applications, Facebook will translate any JavaScript to FBJS, which makes traditional XSS attacks that use JavaScript difficult (Facebook would hope this is impossible) 5a02188284
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