Discovering Browser Extensions via Web Accessible Resources
Discovering Browser Extensions via Web Accessible Resources
复制标题
通过 Web 可访问资源发现浏览器扩展
DOI:
10.1145/3029806.3029820
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
A. Sabelfeld
中科院分区:
文献类型:
--
作者:
Alexander Sjösten;S. Acker;A. Sabelfeld
Browser extensions provide a powerful platform to enrich browsing experience. At the same time, they raise important security questions. From the point of view of a website, some browser extensions are invasive, removing intended features and adding unintended ones, e.g. extensions that hijack Facebook likes. Conversely, from the point of view of extensions, some websites are invasive, e.g. websites that bypass ad blockers. Motivated by security goals at clash, this paper explores browser extension discovery, through a non-behavioral technique, based on detecting extensions' web accessible resources. We report on an empirical study with free Chrome and Firefox extensions, being able to detect over 50% of the top 1,000 free Chrome extensions, including popular security- and privacy-critical extensions such as AdBlock, LastPass, Avast Online Security, and Ghostery. We also conduct an empirical study of non-behavioral extension detection on the Alexa top 100,000 websites. We present the dual measures of making extension detection easier in the interest of websites and making extension detection more difficult in the interest of extensions. Finally, we discuss a browser architecture that allows a user to take control in arbitrating the conflicting security goals.