Sunday, September 15, 2013

Exploiting the iPhone


In the world of information security the new iPhone was recently released with vulnerability. Cell phones carry so much of our personal data; therefore, it is critical to secure individual’s information before releasing any device.

Evaluators decided to investigate how tough it would be for a remote adversary to compromise the private information stored on the iPhone. Within a short period of time, they had successfully discovered vulnerability; they created a tool chain for working with the iPhone's architecture and developed a proof-of-concept exploit capable of delivering files from the user's iPhone to a remote attacker. Once this was discovered, the evaluators notified Apple of the vulnerability and suggested a patch, but Apple resolved the issue on their own.

How the exploit works

The vulnerability is sent via a malicious web page opened in the Safari browser on the iPhone. There are several delivery vectors that an attacker might utilize to get a victim to open such a web page; For example, the iPhone learns access points by name (SSID); if a user ever gets near an attacker-controlled access point with the same name (and encryption type) as an access point previously trusted by the user, the iPhone will automatically use the malicious access point. This allows the attacker to add the exploit to any web page browsed by the user replacing the requested page with a page containing the exploit.

 If a web forum's software is not configured to prevent users from including sensitive data in their posts or web page, an attacker could cause the exploit to run in any phone browser that viewed the thread. For example,   Attacker could manipulate a user into opening a website that they control by sending the link via e-mail or SMS.

When the iPhone's version of Safari opens the malicious web page, illogical code rooted in the exploit is run with administrative privileges. In our proof of concept, this code reads the log of SMS messages, the address book, the call history, and the voicemail data. It then transmits all this information to the attacker. It could also send the user's mail passwords, text messages that sign the user up for pay services, or record audio that could be relayed to the attacker.

Even though Information Technology is ever increasing to ensure protection of our personal data there are still so many weak points and flaws that could bring harm to its users and potential lawsuits. I believe that evaluators are needed to expose flaws and vulnerability to ensure information security to users

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