DNS spoofing is one of the most common attacks associated with domain name systems out there in the world. Hackers are using this attack to gain access to different companies and lead them to trouble. For example, hackers are capable of gathering company data through DNS spoofing techniques. They include login credentials, email exchanges, financial data, and many other sensitive data. Hence, all the company and organization network administrators need to clearly understand DNS spoofing and take appropriate steps to prevent it from taking place.
How does DNS spoofing take place?
DNS spoofing attacks are also called DNS poisoning attacks. This is the situation where attackers are capable of infiltrating the DNS query process. Along with that, the attackers are capable of redirecting all the users to different fake websites. These fake websites are managed by hackers as well. However, the fake websites would look real when compared to fake websites. The main objective of running these fake websites is to gather sensitive information, such as login credentials, credit card numbers, and sensitive data. On the other hand, fake websites can download viruses and implement them within computer networks.
During a DNS spoofing attack, the illegitimate IP address would lie within the cache of the server. Hence, the attackers will be able to go ahead and manipulate TTL. Then they will be able to send out the fake versions of websites to the people and make them become victims of the attacks.
The risk associated with DNS spoofing is not just limited to the DNS server. All the queries that are associated with the infected server would be vulnerable as well. Based on that, it is possible to receive the limitation of the IP addresses for a website linked with risk.
There is a possibility for a DNS server to start directing customers to a fake designed banking website. This fake website will be associated with a fake IP address as well. All the other DNS servers who locate the IP address will be poisoned by it as well. Hence, people who are connected to them will be sent with corrupted addresses. This is where all the customers would get themselves exposed to the attackers.
How to prevent DNS spoofing?
There are numerous steps, which you can take to ensure your protection against DNS spoofing. Here are some of the proven techniques available for you to get the job done.
- Install appropriate security extensions
There are plenty of security extensions available for you to get implemented. You should take a look at those security extensions and get the appropriate ones installed. However, you should specifically look for the DNS Security Extensions. That’s because they are designed to protect you against the security threats associated with DNS. These security extensions will provide you with the protection you need based upon digital signatures. On the other hand, they are backed up with some complex encryption technologies as well. This will be used to validate the authenticity associated with every DNS request. Along with that, the security extension can clearly figure out the DNS spoofing requests.
- Switch to active monitoring from passive monitoring
Passive monitoring techniques are being used by numerous companies located around the world. You need to note that passive monitoring is not enough to get the protection level that you want against DNS spoofing. This is why you will need to pay a lot of attention to active monitoring.
You should actively monitor DNS data. This would be a costly thing to do. However, your company should have a dedicated system administrator to take care of the process. Then you will be able to make it one of his days to day responsibilities. The network administrator will focus on DNS traffic and discover new traffic patterns, which indicate the possible launch of a DNS spoofing attack. In such a situation, the network administrator should immediately act and ensure that the network is protected accordingly. He will have to raise notifications to the appropriate entities and let them know about the presence of an attacker within the system as well.
- Never ignore the security patches.
There are security patches available for you to get and ensure your protection against DNS spoofing. You should ensure that you stick to those security patches and get them installed promptly. When you remain under the protection of the latest security patches, you will be able to close down all the access doors available for the attackers to lead you towards the negative consequences of DNS spoofing. That’s because the security patches are designed to provide enhanced protection against the most common security vulnerabilities that exist.
- Go ahead with DNS updates.
In the future with DNS updates is another great and proven method available for you to ensure security patches’ protection. The updated DNS versions come along with port randomization capabilities. This would ensure that you are going forward with a cryptographically safe connection and all your transaction IDs will be well protected. Hence, you will be able to ensure the protection that you get out from the DNS attackers.
- Come up with strong password policies.
You must take your time and implement strong password policies within the company as well. If you have customers who have accounts on the system, you should encourage them to use strong passwords. Then they will also be able to contribute towards the protection that your systems have against DNS spoofing.
Keep these tips in your mind and ensure that you are protected from DNS spoofing at all times. This is one of the most common threats, which can lead companies towards massive troubles. Hence, you should ensure that you remain protected from it at all times.