1. From the Aether to the Ethernet - Attacking the Internet using Broadcast Digital Television Yosef Oren, Angelos D. Keromytis Vladimir Lambert

2. Smart TV Hybrid Broadcast-Broadband Television (HbbTV) - includes HTML in broadcast streams - connected to Internet Polls, custom adds,...

3. HbbTV (Broadcast) Works on top of the DVB (Digital Video Broadcasting) system Data, metadata streams + more metadata Autostart broadcast dependent applications (most commont form of content) Application Information Table includes URL or points to stream

4. What can application do? Http requests Get info about running chanel Render content on top of the TV broadcast Replace broadcasted content Not signal viewer it is running

5. Security Some functions of terminal only for trusted apps Protecting DRM content Broadcast stream explicitly defines its origin

8. Attack Transmitted on the same frequency Can affect more channels Is untraceable, invisible, unstoppable

9. Possible Attacks DDoS Unauthenticated Request Forgery (script can fully interact with content of page) Authenticated request forgery Intranet request forgery Phishing Exploit distribution

10. It is cheap 1.5 km 2 for less tham 500$ 35 km 2 for less tham 2000$ Impact depends on density of inhabitants

11. Countermesures Crowdsource detercion of RF attacks Users controll over apps life-cycle Restrict broadcast delivered HTML content

12. Thank you for your attention

13. Bibliography Yosef Oren, Angelos D. Keromytis. “From the Aether to the Ethernet - Attacking the Internet using Broadcast Digital Television”. In: Stanford University, Carnegie Mellon University. url: https://crypto.stanford.edu/~dabo/pubs/abstract s/pwdmgrBrowser.html.