Presentations text content in iPhone and Android Security
Slide1
iPhone and Android Security
James Shore
COP 5611
Slide2iPhone and Android Security
Many security features are common to both systems
Screen locking, access
passcodes
Network security and encryption (WEP, WAP, etc)
There are also fundamental decision affecting the security of the systems
Open vs. Closed Source
Freely distributable applications
Neither system is without its weaknesses
Both systems suffered from SMS based vulnerabilities
Both systems suffered from web browser based vulnerabilities
Slide3Fundamental Differences
Open Source (Android) vs. Closed Source (iPhone)
The open source nature of Android makes it easier for would be attackers to find faulty code
It also makes it easier for the community to contribute fixes
Closed source means fewer eyes on the code, for better or worse
Available Applications
Android can install applications found outside the app store
Pro: Increased freedom for the user
Con: Increased freedom for the user
Acceptance into the Android app store is less rigorous
Pro: Easier for developers to make applications available
Con: May allow lower quality applications
Slide4Fundamental Differences
Available Applications
Acceptance into the iPhone app store is a long and scrutinizing process
Pro: Ideally only high-quality, safe applications would be allowed
Con: Many legitimate apps may be rejected; Increased difficulty for developers to make their apps available; limits the choice of what users can run on their own devices
Slide5Fundamental Differences
Application Signing
The iPhone uses signing as a way of controlling which applications can run on the device
Android uses signing mainly for developer identification and relationships between
applications
Application Signing
Android signing requires no certifying authority; many applications are “self-signed”
Pro: Gives developers freedom and control over their own applications
Con: No outside authority to verify the validity of an application
iPhone developers must request certification; iPhone signing is used to verify
Slide6Vulnerabilities
Flaws in the Core multimedia application framework of Android allowed remote control of the browser, allowing access to saved credentials and history, February
2009
“
Fuzzing
the Phone in your Phone,” July 2009
Paper described methods to crash the window management application on the iPhone as well as kick both iPhone and Android devices from their networks
Android phones were kicked permanently from the network if the SIM card had a PIN set
iPhone could be taken over by malicious SMS messages
iPhone could be taken over by visiting malicious website which crashed the browser, August 2007
Slide7Conclusion
Both systems have their strengths and weaknesses
The iPhone has a much larger user base
more likely to be exploited
References
http://
www.informationweek.com/news/security/vulnerabilities/showArticle.jhtml?articleID=218800192
http://
www.readwriteweb.com/archives/android_vulnerability_so_dangerous_shouldnt_use_web_browser.php
http://
developer.android.com/guide/topics/security/security.html
http://
support.apple.com/kb/HT3754
http://securityevaluators.com/content/case-studies/iphone/
iPhone and Android Security
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