[Owasp-natal] Android and Nokia smartphones hijacked via NFC

Eduardo Coelho eduardocoelholima em gmail.com
Quinta Julho 26 15:06:26 UTC 2012

se eu tivesse um android eu iria me preocupar. ;-)


Eduardo Coelho Lima
>> coelho.ithub.com.br

2012/7/26 Noilson Caio <caiogore em gmail.com>

> At the Black Hat <http://www.blackhat.com/> information security
> conference in Las Vegas, security specialist Charlie Miller has
> demonstrated the potential risks of Near Field Communication (NFC), a
> standard that has already been integrated into many smartphones: the
> researcher managed to use NFC to infect smartphones from different
> manufacturers with malicious code – without any need to interact with the
> smartphone owner.
> During his nine months of research, Miller focused on the applications
> that access the radio interface. The most well-known app is probably
> Google's Beam, which has been factory installed on all Android devices
> since Android 4.0 (Ice Cream Sandwich). If a victim's smartphone is placed
> in the vicinity of a tag that has been tampered with, the phone's browser
> will be launched and will access a web site – in this case one that
> contains malware exploits for Android.
> For the demonstration, Georg Wicherski from Crowdstrike contributed a
> vulnerability in the Webkit browser of older Android versions (up to
> Gingerbread) that allowed Miller to take control of the device. The
> researcher says that 90% of all Android devices still have an old, and
> therefore vulnerable version of Android installed<http://developer.android.com/about/dashboards/index.html>.
> The bug can, in principle, also be deployed via other channels, but the NFC
> technology allows infections to be successful without any user interaction.
> The Nokia N9, which uses Nokia's MeeGo operating system, was infected in a
> different way: the device is factory set to accept arbitrary NFC
> communication and will, for example, automatically display images or Office
> files that are sent this way. Miller says that the file rendering
> applications contain numerous bugs that can cause buffer overflows and
> enable attackers to take control of a device.
> An attacker can also activate the N9's Bluetooth interface via NFC and
> then pair the device with a notebook. According to Miller, it is then
> possible to send premium-rate SMS text messages or call premium numbers,
> export the address book, and access the N9's filesystem.
> As NFC only has a range of a few centimetres, attackers and their NFC tags
> or NFC-enabled phones must get very close to their victims. Miller
> therefore considers it more likely that malicious tags could, for instance,
> be attached to advertising posters, or that NFC terminals could be
> exchanged for modified ones.
> (Uli Ries / djwm <djwm em h-online.com>)
> --
> Noilson Caio Teixeira de Araújo
> Linux Professional Institute Certification  2 - LPI000182893
> Novell Certified Linux Administrator (CLA) - 10111916
> Novell Data Center Technical Specialist
> http://ncaio.ithub.com.br
> http://br.linkedin.com/in/ncaio
> http://www.commandlinefu.com/commands/by/ncaio
> http://www.dicas-l.com.br/autores/noilsoncaioteixeiradearaujo.php
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