This whitepaper details some of the vulnerabilities observed over the past year while performing regular security assessments of iPhone and iPad applications. MDSec documents some of the vulnerabilities identified as well as the methods to exploit them, and recommendations that developers can adopt to protect their iOS applications. It covers not only the security features of the platform, but provides in depth information on how to perform both black box and white box iOS penetration tests, along with suggested methodologies and compliance.
You can download it from the following link: https://packetstormsecurity.com/files/download/112482/iosapp-insecurity.pdf
Source: https://packetstormsecurity.com/files/112482/iOS-Application-In-Security.html