Empowering Mobile Device Security with Smart CDNs
Explore research by Ben Livshits and David Molnar from Microsoft Research on enhancing browser security for mobile devices using Smart CDNs. Delve into the challenges of mobile web growth, the impact of CDNs, and potential security services to combat threats. Discover the rise of smart CDNs and the implications for the security landscape.
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Presentation Transcript
Empowering Browser Security for Mobile Devices Using Smart CDNs Ben Livshits and David Molnar Microsoft Research 1
Opera Mobile Study 4 http://www.opera.com/media/smw/2009/pdf/smw032009.pdf
Research in Desktop Browser Security ConScript Nozzle [Oakland 10] [UsenixSec 09] StackGuard/HeapGuard NativeClient/XAX [UsenixSec 01/] [Oakland 09/OSDI 08] XSS filters/ worm filters 5
Mobile: Difficulties of Adoption http://developer.android.com/resources/dashboard/platform-versions.html 6
Consequence: Fat Middle Tier Rise of smart CDN (sCDN) What does this mean for security? 8
Two Research Directions What if the middle tier is not trustworthy? What new security services can we provide? 9
Two Research Directions What if the middle tier is not trustworthy? What new security services can we provide? Let s do the easiest one first 10
Example Service: Nozzle in Mobile Nozzle is a heap spraying prevention system that protects desktop browsers [UsenixSec 09] How to deploy Nozzle on mobile browsers? Software updates on all handsets..? Same problem for any browser based mitigation StackGuard, RandomHeap, your paper at W2SP20XX 11
Example Service: Nozzle in Mobile Run Nozzle in sCDN! Catch heap sprays, pre-render benign pages, ship renders to mobile. 12
More sCDN Security Services Real Time phish tracking Why is everyone suddenly going to whuffo.com? URL reputation 15 other people were owned by this URL XSS filters Fuzz testing seeded with real traces 13
Untrustworthy Infrastructure? Multiple vendors Linksys, Cisco, Akamai, Limelight, Multiple operators Comcast, Sprint, AT&T, T-Mobile, Joe Sixpack, Multiple web applications How do these parties work together? What about privacy? 14
Two Research Directions What if the middle tier is not trustworthy? What new security services can we provide? 15
