mailing list archives
Re: improvements in session management?
From: dd <dd () ghettohackers net>
Date: Thu, 01 Apr 2004 13:40:31 -0800
My first thought was if someone manages to grab the session ID he/she
can logout the valid user immediately by trying to access the web
application with this session ID.
But after rethinking maybe the original poster thought about a second
login with a *valid* authentication. This would not be vulnerable to DoS
attack. Well, still I'd assume it's bad advice to close all sessions. A
better approach would be to refuse the second login.
Refusing the second login would cause the dos attack. If I hijack your
session and have a bot "sit on it" you will never beable to log in again.
By closing any secondary sessions on a valid login you provide a way for
a user to stop an inprogress hijacking. The only problems with this
occur if you expect multiple logins at once, or the users creds are
stolen (which is a problem larger then session hijacking and dos issues).