JShelter: Give Me My Browser Back

Autor: Polčák, Libor, Saloň, Marek, Maone, Giorgio, Hranický, Radek, McMahon, Michael
Rok vydání: 2022
Předmět:
Zdroj: Libor Pol\v{c}\'ak, Marek Salo\v{n}, Giorgio Maone, Radek Hranick\'y, and Michael McMahon. JShelter: Give Me My Browser Back. In SECRYPT 2023 (Rome, IT). SciTePress
Druh dokumentu: Working Paper
Popis: The web is used daily by billions. Even so, users are not protected from many threats by default. This position paper builds on previous web privacy and security research and introduces JShelter, a webextension that fights to return the browser to users. Moreover, we introduce a library helping with common webextension development tasks and fixing loopholes misused by previous research. JShelter focuses on fingerprinting prevention, limitations of rich web APIs, prevention of attacks connected to timing, and learning information about the device, the browser, the user, and surrounding physical environment and location. We discovered a loophole in the sensor timestamps that lets any page observe the device boot time if sensor APIs are enabled in Chromium-based browsers. JShelter provides a fingerprinting report and other feedback that can be used by future security research and data protection authorities. Thousands of users around the world use the webextension every day.
Comment: Paper update after internal review, update according to the latest development, transform into extended version of the SECRYPT paper that was accepted
Databáze: arXiv