Greboca  

The Hacker Blog  -  The Journey to Hijacking a Country’s TLD – The Hidden Risks of Domain Extensions

 -  Juin 2017 - 

I will liken him to a wise man, who built his house on a rock. The rain came down, the floods came, and the winds blew, and beat on that house; and it didn’t fall, for it was founded on the rock. Everyone who hears these words of mine, and doesn’t do them will be… Read More

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The Hacker Blog

A Hacker's Blog of Unintended Use and Insomnia.

The .io Error – Taking Control of All .io Domains With a Targeted Registration

 -  Juillet 2017 - 

In a previous post we talked about taking over the .na, .co.ao, and .it.ao domain extensions with varying levels of DNS trickery. In that writeup (...)


Hacking Guatemala’s DNS – Spying on Active Directory Users By Exploiting a TLD Misconfiguration

 -  Janvier 2017 - 

Guatemala City, By Rigostar (Own work) [CC BY-SA 3.0], via Wikimedia Commons. UPDATE: Guatemala has now patched this issue after I reached out to (...)


Respect My Authority – Hijacking Broken Nameservers to Compromise Your Target

 -  Janvier 2017 - 

In a past piece of research, we explored the issue of nameserver domains expiring allowing us to take over full control of a target domain. In (...)


The Orphaned Internet – Taking Over 120K Domains via a DNS Vulnerability in AWS, Google Cloud, Rackspace and Digital Ocean

 -  Décembre 2016 - 

Recently, I found that Digital Ocean suffered from a security vulnerability in their domain import system which allowed for the takeover of 20K (...)


Floating Domains – Taking Over 20K DigitalOcean Domains via a Lax Domain Import System

 -  Août 2016 - 

The above image is taken from here and was taken by Steve Jurvetson. EDIT: DigitalOcean seems to be getting a lot of flak from this post so I’d (...)