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Slide 2 Xing Jin, Tongbo Luo, Derek G. Tsui, Wenliang Du Department of Electrical Engineering & Computer Science Syracuse University. Slide 3 (a) (c) (b)(d) (g)(f)(e)(h) Slide 4 Outline BackGround Overview of HTML5-based Mobile App Overview of PhoneGap Architecture Risks in JavaScript Code Injection Attacks on HTML5-based mobile apps Overview of the Attack Channels of the Attack Examples (WIFI, NFC, MP3) Length limitation Real Vulnerable Cases Future Work Slide 5 Overview of HTML5-based Mobile App PhoneGap Device Accelerometer Camera Compass Contacts File Geolocation Notification WebView HTML CSS JavaScript X X addJavascriptInterface() Advantage: Can be easily ported between different platforms Slide 6 Overview of PhoneGap Architecture Slide 7 Risks in JavaScript Data and code can be mixed together. var text="Hello! alert('hello') "; document.write(text); Once it runs, the data will be displayed, and the JavaScript code will also be executed. Slide 8 Overview of the Attack Slide 9 3 1 2 Slide 10 Channels of XDS Attack ID Channels (WiFi, Bluetooth) Data Channels Unique to Mobile Devices (NFC, Barcode, SMS) Metadata Channels (MP3, MP4, Image) Slide 11 Example 1(WiFi) Non PhoneGap WiFi-Finder PhoneGap WiFi-Finder Slide 12 Example 2(NFC) Non PhoneGap NFC App PhoneGap NFC App Slide 13 Example 3(mp3) PhoneGap Mp3 App Non PhoneGap Mp3 App http://www.cis.syr.edu/~wedu/attack Slide 14 Length Limitation of Channels Slide 15 Overcome the limitation Use External JS files: ( will be filter out by innerHTML) Split JS code into pieces: (need to use jQuery) 1 2 3 4 5 Slide 16 Real vulnerable cases Downloaded 764 PhoneGap apps from Google Play Find several vulnerable apps satisfy two attack conditions: read external data from the channels that we have identified use vulnerable APIs or attributes to display information from the channels Slide 17 Real Vulnerable Cases Non PhoneGap App PhoneGap App Information sent to Sever Slide 18 Real vulnerable Cases The code injected in the QR codeSlide 19 Future Work Large Scale analysis of HTML5-based mobile apps Solution to address the attack Slide 20 Thanks! Q & A