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Leo Meyerovich, David Zhu

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Presentation on theme: "Leo Meyerovich, David Zhu"— Presentation transcript:

1 Leo Meyerovich, David Zhu
Secure Cooperative Sharing of JavaScript, Browser, and Physical Resources Leo Meyerovich, David Zhu Benjamin Livshits UC Berkeley

2 Web Application Security
lipstick on a pig?

3 Not Your Mother’s Browser
browser kernels JIT compilers jsvm, network, ... partitioned hardware disk

4 Mashup Manifesto sharing requires control sharing must be natural
sharing must be cheap

5 <CoFrame src=http://gadget.com/page id=gadget
passthroughBrowser="html css js" delegatePhysical=".1 cpu"/> ... 4. var toggle = true; 5. delegateBrowser(“network”, gadget, " function () { if (!toggle) throw ‘exn!’; }); 7. function getData() { toggle = false; return "profile data"; } 10. gadget.getData = getData; 11. aroundJS(gadget, getData, “execute”, function proceed (continue) { return continue(); });

6 JS Sharing with Cross-Principal Advice
Alice Bob Function.prototype __proto__ function getData

7 JS Sharing with Cross-Principal Advice
Alice Bob Function.prototype __proto__ function getData

8 JS Sharing with Cross-Principal Advice
Alice Bob Messages execute set fld val get fld addField fld val removeField fld Function.prototype __proto__ function getData function proceed execute set, get, … aroundJS(Bob, getData, “execute”, function proceed (continue) { return continue(); }) function defaultDeny function defaultDeny (continue) { throw ‘err’ }

9 JS Sharing with Cross-Principal Advice
Alice Bob Messages execute set fld val get fld addField fld val removeField fld Function.prototype __proto__ function getData function proceed execute , get set, … function defaultDeny

10 JS Sharing with Cross-Principal Advice
Alice Bob set, … Messages execute set fld val get fld addField fld val removeField fld Function.prototype execute, set, get, addField, removeField __proto__ function getData function proceed execute , get set, … function defaultDeny Cornelia

11 Browser API Sharing with Non-Tampering Advice
facebook.com gadget.com delegation: non-tampering advice delegateBrowser(“network”, gadget, " function () { if (!toggle) throw ‘exn!’; }); facebook.com parser, DOM, CSS, ... gadget.com

12 Physical Resource Sharing with ROS
disk layout render …

13 Conclusion Abstractions for sharing browser, physical, and JavaScript resources Use the browser, OS/hardware, and language runtime

14 Mashup Manifesto sharing requires control sharing must be natural
control must be cheap

15 Related Work JavaScript Sharing Caja MashupOS Object Views ConScript
Browser API Sharing OP Browser ConScript ServiceOS Physical Resource Sharing Resource Containers E Gazelle TessellationOS Chrome

16 backup slides.

17

18 Sharing Browser APIs: Today
Facebook.com advice DOM (FFI)

19 Sharing Browser APIs: Tomorrow
Facebook.com advice DOM (FFI) browser kernel

20 The Times They Are A-Changin’
method-based JIT trace-based compilation static compilation GPU rendering solver generator parallel layout multicore CSS selectors parallel parsing parser generator browser kernel browser JIT (C#, X86, …) hypervisor, microkernel, hardware partitioning

21 BROWSER container.com gadget.com

22 container.com gadget.com gadget.com gadget YouTube fork bomb!!!
policy? BROWSER container.com gadget.com gadget.com

23 A New Hope BROWSER container.com gadget.com gadget.com

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