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Thursday, July 4, 2013

Massive Android flaw allows hackers to take over and control 99% of Android devices

Mobile security company Bluebox said today that it recently discovered a vulnerability in Android that makes any Android device released in the last four years vulnerable to hackers who can read your data, get your passwords, and control any function of your phone, including sending texts, making phone calls, or turning on the camera.
That’s almost 900 million Android devices globally.
“A Trojan application … has the ability to read arbitrary application data on the device (email, SMS messages, documents, etc.), retrieve all stored account & service passwords,” Bluebox CTO Jeff Forristal posted. “It can essentially take over the normal functioning of the phone and control any function.”
android exploit
BlueBox
Bluebox modifed an Android device manufacturer’s application to obtain access to all permissions on the device.
The vulnerability is due to “discrepancies” in how Android apps are approved and verified, Bluebox says, allowing hackers to tamper with application code without changing the app’s cryptographic signatures. That means that an app — any app — which looks perfectly safe and legitimate to an app store, a device, an engineer, or a user actually could actually have malicious code embedded within it.
Forristal said that the details of the bug have already been disclosed to Google back in February, and that Google has “notified their device partners.”
The problem, however, is that because of Android’s fragmented nature and the fact that device manufacturers and mobile carriers release Android updates sporadically if at all, many Android devices are not running the latest software, and cannot be user-updated.
Forristal puts it diplomatically:
“The availability of these updates will widely vary depending upon the manufacturer and model in question.”
If an attacker successfully gains control of an Android device — and Bluebox will be revealing technical details of the vulnerability at hacker conference Black Hat USA 2013 in late July — the hacker essentially gains control of all permissions on the phone or tablet.
That’s a disaster for users, particularly because many Android users, particularly those in Asian and Eastern countries, use the 500+ independent Android app stores that have little or no authentication or verification procedures to ensure that apps that pass through their services are legit, forming a perfect opportunity for unscrupulous and technically-inclined thieves and spies to gain control of your phone.
I’ve asked Google for a comment, and received a very simple, terse response from a Google representative:
We aren’t commenting.
I’m not sure exactly how to interpret that, but I suspect that Google wants this to get as little press as possible while the company scrambles to get as many Android devices updat

Read more at http://venturebeat.com/2013/07/03/massive-android-flaw-allows-hackers-to-take-over-and-control-99-of-android-devices/#74KlXiZzxdzL3xux.99 

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