Presented at
Black Hat USA 2017,
July 27, 2017, 3:50 p.m.
(50 minutes).
Despite all predictions, native Desktop apps are back. After years porting stand-alone apps to the web, we are witnessing an inverse trend. Many companies have started providing native desktop apps built using the same technologies as their web counterparts. In this trend, Github's Electron has become a popular framework to build cross-platform desktop apps with JavaScript, HTML, and CSS. While it seems to be easy, embedding a webapp in a self-contained web environment (Chromium, Node.Js) introduces new security challenges.
In this presentation, we will illustrate Electron's security model and describe current isolation mechanisms to prevent untrusted content from using Node.js primitives. Electron's IPC messaging, preloading and other internals will be comprehensively discussed. BrowserWindow and WebView security-relevant options will be also analyzed, together with design-level weaknesses and implementation bugs in Electron-based applications.
As part of our study of Electron security, we have mapped the overall attack surface and derived a comprehensive checklist of anti-patterns. A new tool (electronegativity) to facilitate testing of Electron-based apps will be released.
Presenters:
-
Luca Carettoni
- Co-founder, Doyensec
With over 14 years of experience in the application security field, Luca Carettoni is a respected web security expert. Throughout his career, he worked on security problems across multiple industries and companies of different size. He is the co-founder of Doyensec, an application security consultancy working at the intersection of offensive engineering and software development. At LinkedIn, he led a team responsible for identifying new security vulnerabilities in applications, infrastructure and open source components. Prior to that, Luca worked as the Director of Information Security at Addepar, a startup that is reinventing global wealth management. Proud to be a Matasano Security alumni, he helped bootstrapping the Silicon Valley office by delivering high-quality security assessments to software vendors and startups. As a security researcher, he discovered numerous vulnerabilities in software products of multiple vendors including 3com, Apple, Barracuda, Cisco, Citrix, HP, IBM, Oracle, Sun, Siemens, VMware, Zend and many others. Since the beginning of his career, he has been an active participant in the security community and a member of the Open Web Application Security Project (OWASP). Luca holds a Master's Degree in Computer Engineering from the Politecnico di Milano University.
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