چكيده به لاتين
The main aim in thesis is to design and implement a test case generator to fuzz web browsers. The outcome of this fuzzing is to discover exploitable vulnerabilities. In this thesis, The Google Chrome browser has been of particular interest because of its enormous usage across the world and its relatively high speed and security. The input’s to a browser such as Google Chrome are normally HTML pages. These pages are interpreted, executed and displayed by the browser engine. In the Chrome web rendering engine the task of displaying web pages is given to the browser rendering engine and a JavaScript interpreter is responsible for the execution of script codes. The rendering engine generate C++ code to create the hierarchical structure of HTML pages. A binding layer, specified by the IDL formalism, facilities the inter-connections between the rendering engine and the JavaScript interpreter, continuously. The binder translates the C++ code, generated by the rendering engine, to JavaScript and vice versa. Special cares should be taken when transferring data to this layer otherwise malicious intruders may abuse this interfacing vulnerability. To make such connections can be problematic .With the help of APIs, written in JavaScript, and a number of dangerous functions, announced by Common Vulnerabilities and Exposures and other source, we could manipulate the inputs to the binding layer of Chrome. As a result, three unknown bugs of the Google Chrome web browser were revealed.
Keywords:
Fuzzing- Google Chrome- Vulnerability- Rendering engine – Javascript Interpreter
