The researchers who last week said they had succeeded in jailbreaking the RIM PlayBook tablet have now posted a detailed walkthrough of how users can accomplish the same task on their own. The technique requires the use of a custom tool, but otherwise is fairly straightforward.
One of the researchers, known as Neuralic, posted the walkthrough to Pastie.org Tuesday morning. In order to begin the process, a PlayBook user need to first install the beta 2.0 version of the PlayBook software and then install the Dingleberry tool, which exploits a weakness in the PlayBook architecture which stems from the fact that the backups that the device takes aren’t signed, according to a message posted to Twitter by one of the researchers, Chris Wade.
“The Dingleberry exploit works by exploiting the fact that the backups taken by the desktop manager aren’t signed. It modifys [sic] the smb.conf,” Wade said in the message. “Which enables us to have it run a script as root whenever an smb connection is made.”
After the Dingleberry tool does its work, the next step is to download a Google Apps package and then install and launch an Android app, which will set up the Android environment on the device. From there, the steps go as follows, from the walkthrough:
RIM is aware of reports that a security researcher has released a tool designed to allow BlackBerry PlayBook users to jailbreak their tablet. RIM is following its standard security response process to investigate the functionality and impact of this tool and if needed, RIM will develop, test, and release a software update that is designed to minimize the potential adverse impact to our customers,” the company said in a statement.