Facebook fan blog hacks user profiles to reveal security hole
Tuesday, June 23, 2009
FBHive, a Facebook fan blog that debuted Monday, posted personal information from several famous users of the site to demonstrate a security flaw that Facebook has since repaired.
The bloggers at FBHive published data from the user profiles of Facebook founder and CEO, Mark Zuckerberg, Digg founder Kevin Rose and others. In an update post on Tuesday, the blog revealed that FBHive ("two twenty-something guys who are avid fans of Facebook") had hacked the private profile information containing the user's networks, sex, birthday, hometown, siblings, parents and relationship status.
Security experts said the personal information such as birthdates could be used to attempt to steal login and password information for email accounts or other social networking sites.
The exploit involved fooling the "Edit Information" section of a user profile to display another user's "Basic Information" page, which was the only section of the site the FBHive guys could access with their hack.
"By using the Tamper Data add-on for Firefox, we were able to change our profile ID number to that of Mark Zuckerberg, and voilà! His basic info appeared in our own profile," the blog reported.
Last September, hackers were able to use the serial number of any Facebook user and a hack through Firefox browsers to access private photos on the site.
Facebook fixed that security flaw after being alerted by CNET News about the hack.

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