James Barclay is an R&D Engineer at Duo Labs, the security research and analysis team at Duo Security. We’ll also cover how we built a client proxy that supports the OpenSSH Prox圜ommand directive, which allowed us to continue using standard SSH tooling on macOS, Windows, and *nix operating systems. In this talk we’ll provide an in-depth look at how we built an SSH WebSockets proxy that natively supports the relay protocol built into the Chrome Secure Shell extension. ![]() The SSH protocol in particular was of interest to us given how many times we use it on a daily basis, but aside from some comments in the source code for the Chrome Secure Shell extension, there wasn’t much to go on. As fantastic as the BeyondCorp papers are, it can be a bit daunting to take concepts from it and build something real. The term “zero-trust” has become somewhat of a buzzword lately, but we haven’t seen many practical examples of how something like this is implemented. ![]() Presented at ToorCon San Diego 19 (2017),
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