Monday, August 25, 2008

Domain Validated SSL Certificates

Regarding the SSL certificate I procured from a major Certificate Authority, the following two points would have helped prevent the issuing of the certificate.

1. An automated connection outbound over SSL to (using a secured DNS server).
If this was done, it would have been obvious that the domain already has a valid, non-expired certificate. Why would Microsoft need another one? This should have thrown a red flag.

2. Actual domain validation (DNS poisoning was not used).
WHOIS information was simply disregarded. It also appears that it was a person who messed up, not necessarily a system. Awareness training is always a good thing. The scariest part was that people I spoke to on the phone saw nothing wrong with what I was requesting.

I don't want to name the CA who messed up - that won't help anyone.

I will, however, give props to a CA who did a great job. It may have just been one guy there who saw the badness, but he promptly called me with a loud and direct WTF?!

"There is no way we can give you that certificate", he told me. Way to go Digicert!

Tuesday, August 19, 2008

Strydehax the Olympics!

My buddy strydehax put a couple of hours into investigating the controversy surrounding the age of Chinese gymnasts. Check it out here.


I'm off to NYC for NYSEC tonight, and tomorrow I'm off to Chicago for some work and some play. I was originally going to Chicago to hang out with my buddy, but coincidentally, there is a local OWASP chapter meeting on Thursday. Even cooler is that Rohyt had been scheduled to speak there, so I also get to go show some support for Intrepidus.

In other news, I'm finally starting to get caught up with work and back in the swing of things after Vegas. I'm continuing with more SSL VPN research, as well as some generic SSL research to follow my stunt. Unfortunately, I have more ideas than I have time to research them.

Thursday, August 7, 2008

SSL VPN Slides - BlackHat 2008

Yesterday I delivered my presentation on web based SSL VPN security at BlackHat in Las Vegas. The slides can be viewed here.

Thanks to all who attended my presentation. I'll be writing a paper soon to highlight the major points, so stay tuned for that.