1. The Effects of Jailbreaking on iPhone Security
Tristan Gibeau
Ed Leland
CAP 6135

2. Background
The original iPhone was released in June 2007, while the more capable iPhone 3G was released in July 2008.
iPhone use grew 245% during 2008,up to 8.2% of worldwide mobile phones. (
High visibility and popularity has made the iPhone a tempting target for hackers.

3. Problem
The restrictive nature of the App Store has caused many users to resort to unlocking their iPhones, known as jail breaking.
In addition to cutting off the user from Apple software updates, jail breaking allows far easier access to iPhone files
Apps are unchecked by Apple, allowing for the insertion of back doors.

4. App Distribution in Jailbreak
Apps can be downloaded via depositories
Installed via Cydia
Manages verity of depositories
Depositories
Managed
Distributed by viable companies
Unmanaged
Distributed by basic users (Attackers)
Verity of applications
From visual to administrative

5. Vulnerabilities in Jailbreaking
Backdoor access via secure shell (ssh)
Wi-Fi connection broadcasts iPhone
Root password is set by default (Alpine)
Allows access admin operations
Admin access to iPhone
Root file access
Insert
Delete
Change

6. Solution
Use the Apple iPhone software development kit to design a trojan horse that would access and transmit personal information while appearing harmless.
At the same time we will be looking into different ways we could implement overflows in different data directories to cause the iPhone to crash or to freeze.