More than three years after the iPhone has been hacked , computer security experts believe they have found a new way to get into mobile phones and one that could become a headache for Apple, or using the smartphone makers Android software from Google. In presentation scheduled for Black Hat conference next week in Washington DC , University of Luxembourg research associate Ralf-Philipp Weinmann said he plans to demonstrate his new technique on an iPhone and an Android device, showing how they could be converted in clandestine espionage systems. "I will demo how to use the auto-response present in most phones to turn the phone into a remote listening device," he said in an interview via e-mail. Weinmann said he could do it by breaking the "baseband" processor of the phone used to send and receive radio signals that the device communicates over the cellular network. He has found bugs in how the firmware used in the chips sold by Qualcomm and Infineon Technologies handles radio signals on the GSM(Global System for Mobile Communications) networks used by most mobile operators worldwide . This is a new area of ??research. Until recently, attacks on mobile phones focused on another part of the phone: the programs and operating systems running on the processor of the device. By enticing a person to visit a malicious website, for example, hackers could use a web browser bug on the phone and start messing with the computers memory. With piracy baseband, security researchers are looking at a whole new way to get into this memory. "[It] is like flipping a rock that nobody ever thought would be overthrown," said Grugq-pseudonym, but respected, hack wireless phone, and of a handful of people who have done research in this area. "There are many hidden bugs out there," he said, "Its just a matter of active research for them. " But hacking a smartphone with an attack in baseband is very difficult, to say the least. Communicates radio, mobile phone with a cell phone tower. So in Weinmann attack, he first established a cellular tower fake phone and convince his target phone to connect to it. Only then can it deliver its malicious code. And even then, the malicious code writing it must run on the firmware that is used by the radio processor obscure something that most hackers know nothing. "Its a highly technical attack," said Don Bailey, a security consultant with partners Isec. He said that all work on hacking the baseband is very exciting and finally a big problem for the mobile phone industry, he does not expect any attacks that target the general public to come out soon. But research in this area is just beginning to take off, fueled by open source software called OpenBTS , which allows virtually anyone to create their own phone tower cellular radio network with approximately $2000 worth of computer equipment . Five years ago the device manufacturers need not worry about this kind of piracy, because it allows cost tens of thousands of dollars to set up a phone tower Cell. But OpenBTS has changed all that. "Now, its a completely different game," said Bailey. Its a risky game, too. United States, federal laws on wiretapping that it is illegal to intercept telephone calls on authorized frequencies used by mobile phones. In August, it took intense last minute negotiations between lawyers for the Electronic Frontier Foundation and the Federal Communications Commission before security researcher Chris Paget could demonstrate a very simple technique to turn spoofing at the Defcon hacking conference in Las Vegas. Two months from now another hacker conference, CanSecWest Vancouver, invite hackers to break into mobile phones using a low power transmitter. If their work attacks the baseband, you can win cash prizes. Conference organizer Dragos Ruiu said that Canadas broadcasting laws are "softer" for researchers who want to develop low-power towers for research purposes. Yet it remains a touchy subject. "Last year we were worried about violating the regulations," he said. " Now weve found a nice safe way to do this so that we do not spoil cell phones anyone at the conference. " Ruiu expect interesting results of the contest, called Pwn2Own." It appears that the parties radio phones are indeed very fragile and very vulnerable, "he said.
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