There’s been a lot of focus on replacing passwords for authentication lately. Google and Twitter have each put forward proposals to address issues in authentication, Google’s based on browser modifications and Twitter’s based on mobile phone usage. Many people advocate multi-factor authentication while others advocate email-based authentication or even more unusual ideas. While many offer […]

If you’re a developer, the task of building secure software can seem to be daunting. Vulnerabilities are a bane of large complex software projects, and companies like Microsoft spend millions to try to address them. This shouldn’t be a surprise, but since it’s popular to claim everything is hackable and nothing can be secure, it’s worth spelling out: Remote code execution vulnerabilities are not hard to prevent if developers follow a few simple, practical rules from the start, since they basically always fall into the below categories.

At BSides San Antonio this year, I gave a talk on Red Teaming the CCDC, including the CCDC red team year-end highlights, lessons learned, and all the secrets we’ve been hiding from the regional qualifiers to the national finals. I covered how we hacked and hid from the most paranoid student sysadmins in the nation, […]

March is Pass-the-Hash Awareness Month! It’s not as simple as you might think, but to break it down, I did a guest post on the passing-the-hash blog: http://passing-the-hash.blogspot.com/2014/03/guest-post-lets-talk-about-pass-hash-by.html

All of them. Or at least a good chunk of ’em. Why? Because sometimes you just need to know what the parameters are for some obscure function. Download here: winapi.txt and enjoy.

You can see the slides I put together for my talk Network Nightmare – Intel PXE at http://www.scriptjunkie.us/wp-content/uploads/2011/10/Network-Nightmare-Intel.pdf. It is a modification of the Defcon talk, and adds some lessons learned/suggestions for developers. I also added a few slides evaluating the PXE attack according to the most common vulnerability severity criteria, as if it was […]

I am adding a page Important Stuff with some thoughts on non-information-security stuff. As fun and interesting as hacking is, there are more important sides of life. So I summarized just four of the reasons why I believe what I believe, and a bit of what that means. As you may know, I am a […]