We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message

Skype iPhone, iPod Touch App Has Security Hole

The vulnerability, located in the app's chat message window, can be used to steal a person's address book.

Skype is working to fix a security hole in its iOS app for the iPhone and iPod Touch that allows a hacker to steal a person's entire address book. The vulnerability, located in the app's chat message window, can be exploited with JavaScript code. It was pointed out by security researcher Phil Purviance of AppSec.

"Skype uses a locally stored HTML file to display chat messages from other Skype users, but it fails to properly encode the incoming user's 'Full Name,' allowing an attacker to craft malicious JavaScript code that runs when the victim views the message," Purviance wrote on his blog.

The heart of the problem, according to Purviance, is an improper definition within the Skype app that allows access to a user's local file system. He says the threat is partially mitigated by protections within iOS itself, but the address book remains vulnerable.

Skype appears to be in no hurry to fix the problem. In a tweet, Purviance said he notified Skype of the vulnerability on August 24, and was told that an update addressing the issue would be released in early September.

A statement from Skype confirms that the company is aware of the issue and will fix it "in our next planned release, which we hope to roll out imminently."

You can watch a demonstration of exactly how the exploit works in this video, created by Purviance:

Follow Eric on Twitter and at ericmack.org. Follow PCWorld on Twitter, too.

IDG UK Sites

Nokia Lumia 930 review: The flagship Windows Phone 8.1 smartphone

IDG UK Sites

Live Blog: Apple financial results, record June quarter, 35.2m iPhones sold, $37.4b revenue

IDG UK Sites

Welcome to the upgrade cycle - you'll never leave

IDG UK Sites

Why smartphone screens are getting bigger