DNS attack discovery – tools and analysis
As the DNS protocol is very important, it is a favorite target for attackers. DNS has numerous loopholes, so let’s discuss the loopholes in the DNS protocol and how to identify them.
We will follow the same penetration-testing approach for DNS discovery:
- DNS enumeration
- Vulnerability scanning
DNS enumeration
DNS enumeration in penetration testing is sometimes referred to as information gathering related to a specific service that narrows down the first level of footprinting. In this chapter, we will only be performing reconnaissance on a DNS service; hence, it is called DNS footprinting.
Now, we know that DNS works on port 53; hence, our major focus will be on this port only.
Identifying name records
Let’s find all the domain name records using the nslookup or dig utility, as shown in the following screenshot:
Figure 13.4 – DNS records
The preceding figure...
