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Methods of attacking DNS spoofing attack

Attackers target the end goal, and on the basis of that, attacks are categorized by DNS spoofing. The broad category of attacks that are used to spoof the DNS records is referred to by this type of cyber attack. The DNS spoofing can be performed in multiple ways, which are as follows:

  • Man in the middle attack (only if we are able to access the network)
  • DNS server Hijacking
  • DNS server compromise
  • DNS cache Poisoning attack
  • DNS ID spoofing
  • Creation of false base station and fabricate the DNS server.
  • Guessing of sequence number (It can make many sequences)

Among various methods, some of the common methods for doing DNS spoofing are as follows:

Man in the middle attack

In this attack, attackers infect the DNS server and our web browser both. Attackers steps between both of them. Using a tool, our local device is simultaneously affected by cache poisoning, and the DNS server is affected by server poisoning. As a result, the attacker's malicious site gets all the information that is hosted on a local server of the attacker. It is really difficult to protect against this attack. This attack is so effective and so powerful because it is very hard to protect against this attack.

DNS cache Poisoning

In this, a compromised DNS server replaces the local DNS server. The customized entries of genuine website names and the IP address of the website replaced the attacker, which is contained in the customized server. When the user wants IP resolution and sends a request to the local DNS server, which means it communicates with the compromised server. As a result, the user will be redirected to a website which the attacker plants. If a cache has a forced DNS cache injected by the attacker and the user uses that cache, this attack will be very simplified for the attacker. For example, a caching DNS server is run by the ISPs, which route their path to the DNS server for their users. Suppose an attacker successfully crosses all the security and using the incorrect record to update the DNS server cache. In that case, an attacker can spoof the DNS records and use that DNS cache to access all the end-users.

DNS ID spoofing

In this, the server receives a resolve request, which is sent by the server. To resolve the request, the server generates the IP information and packet ID, which is duplicated with forged information. In the response, ID matches the request ID, and the machine of the user accepts that request, which contains unexpected information.

DNS server Hijack:

DNS requests are mostly sent in an encrypted manner. The server is directly reconfigured by the attacker to direct all the requesting user or traffic to the malicious website. An attacker sets up a fake server that is used to send a fake IP address that redirects us to their unauthorized version of the website or malicious websites. Using these malicious websites, attackers steal sensitive information that is entered by the user.

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