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Invalidating session on logout

Posted on by Shadal Posted in A widower 4 Comments ⇩

Log into the application. A recent article published recently mentions a really great way to solve this issue without having to change the cookie-based storage. Navigate to the repeater tab in Burp Suite and replay the request. Devise suggests asking users to change their passwords, as the salt stored in the session cookie by Devise relies on the password, and changing the password would invalidate the old session. The article also goes on to mention that you can invalidate the session by switching to a persisted storage for sessions on the server, by using a database, memcache, or Redis, but this comes with additional changes. Send any one of the authenticated request to the Repeater tab in Burp Suite. Observe that the session is not invalidated even after logging out of the application. In Burp Suite's Burp History tab, observe that no logout request is being sent to invalidate the session cookie. Note that this log out from a particular device will also lead to the log out from all other devices, for example in another computer, or smartphone. In other words, if you were to copy the session value that is stored in the cookies and use it in another browser, or another machine, you would be able to use that same session. It comes with a lot of useful features, but it also has its limitations. Fortunately, there is a quicker solution as well. You will also need to care of adding, accessing, and removing the session data, which may has an impact on performance on high traffic sites since a session may be allocated even for anonymous browsing traffic. Now, when a user logs out, that respective session will be invalidated. User sessions remain active on the server, and any requests submitted including the user's session identifier will execute successfully, as though the user had made those requests. One of them is that it does not invalidate a session even though you log out. When a user logs out, that particular session is not invalidated.

Invalidating session on logout


User sessions remain active on the server, and any requests submitted including the user's session identifier will execute successfully, as though the user had made those requests. Created by Harpaul 05 Jul Now, when a user logs out, that respective session will be invalidated. The article also goes on to mention that you can invalidate the session by switching to a persisted storage for sessions on the server, by using a database, memcache, or Redis, but this comes with additional changes. When a user logs out, that particular session is not invalidated. You will also need to care of adding, accessing, and removing the session data, which may has an impact on performance on high traffic sites since a session may be allocated even for anonymous browsing traffic. In addition to prolonging the session identifier's exposure to attack, failing to invalidate the user's session server-side also leaves the user with no way to deny an attacker's access once the victim discovers that their session has been compromised. One of them is that it does not invalidate a session even though you log out. A recent article published recently mentions a really great way to solve this issue without having to change the cookie-based storage. U The application does not properly invalidate a user's session on the server after the user initiates logout. In Burp Suite's Burp History tab, observe that no logout request is being sent to invalidate the session cookie. Fortunately, there is a quicker solution as well. Click on "Logout" button to logout of the application. Configure your browser to use a proxy tool such as Burp Suite. Send any one of the authenticated request to the Repeater tab in Burp Suite. One of the core developers behind Devise accepts it, and gives the advice of replacing cookie-based storage to address this issue. Leaving the user's session active after the user initiates logout provides the attacker with a larger window in which to steal a victim's session and impersonate that user in the application. Navigate to the repeater tab in Burp Suite and replay the request. Observe that the session is not invalidated even after logging out of the application. In other words, if you were to copy the session value that is stored in the cookies and use it in another browser, or another machine, you would be able to use that same session. It comes with a lot of useful features, but it also has its limitations. Log into the application. Devise suggests asking users to change their passwords, as the salt stored in the session cookie by Devise relies on the password, and changing the password would invalidate the old session. Note that this log out from a particular device will also lead to the log out from all other devices, for example in another computer, or smartphone.

Invalidating session on logout


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4 comments on “Invalidating session on logout
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    Tygokazahn

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  3. Shaktikazahn:

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