It's extremely common for websites to protect your password by encrypting the initial login, but surprisingly uncommon for websites to encrypt everything else. This leaves the cookie (and the user) vulnerable. HTTP session hijacking (sometimes called "sidejacking") is when an attacker gets a hold of a user's cookie, allowing them to do anything the user can do on a particular website. On an open wireless network, cookies are basically shouted through the air, making these attacks extremely easy.
This is a widely known problem that has been talked about to death, yet very popular websites continue to fail at protecting their users. The only effective fix for this problem is full end-to-end encryption, known on the web as HTTPS or SSL.
Facebook is constantly rolling out new "privacy" features in an endless attempt to quell the screams of unhappy users, but what's the point when someone can just take over an account entirely?
Twitter forced all third party developers to use OAuth then immediately released (and promoted) a new version of their insecure website. When it comes to user privacy, SSL is the elephant in the room.
Firesheep, a Firefox extension designed to demonstrate just how serious this problem is.
After installing the extension you'll see a new sidebar. Connect to any busy open wifi network and click the big "Start Capturing" button. Then wait.
As soon as anyone on the network visits an insecure website known to Firesheep, their name and photo will be displayed:
That's it.
Firesheep is free, open source, and is available now for Mac OS X and Windows. Linux support is on the way.
Websites have a responsibility to protect the people who depend on their services. They've been ignoring this responsibility for too long, and it's time for everyone to demand a more secure web. My hope is that Firesheep will help the users win.
By Codebutler..
Filed Under: hack facebook , hack twitter
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