November 2018
Beginner to intermediate
270 pages
7h 53m
English
Content preview from Bug Bounty Hunting Essentials
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Sub-Domain Takeovers
The vulnerability we will be talking about in this chapter is so tricky that it is more like a configuration management error than a vulnerability. However, there are bounty platforms, such as HackerOne, that include it as vulnerability, so it's still worth discussing.
The problem in this case arises when someone registers a new domain to point to another domain. So, we will cover the following topics in the chapter:
- Sub-domain takeovers
- Internet-wide scans
In a vulnerability example, the sub domain (hello.domain.com) uses a canoninal name (CNAME) record to point to fulanito.com. A CNAME record is a domain name service (DNS) register, and it allows us to specify an alias for a domain name to a user. For example, if ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.