March 29, 2019
Each domain has unique IP address; IP addresses tend to change over time, it requires mapping of domain name to IP address, and it is quite challenging to track the complex numbers. Domain Name Server (DNS) is Internet’s phone book that archives domain names. It translates the domain names of the websites that are human-readable to IP address that are machine readable.
Each device connected to the internet is given an IP address. IP addresses are critical to identify the device connected to the Internet. For instance, if the user wants to load a webpage, and the user types a website address, a translation is required to convert it to computer-friendly language to identify the locate the webpage that the user tends to visit.
It is critical to protect the domain name server infrastructure, considering the recent hijacking campaigns created against the DNS infrastructure to illegally gain access to email password, sensitive information from private companies and government bodies seizing the network traffic.
Therefore, the security and the network admins for domain name registrars, service providers and organizations have been highlights on the importance of securing their domain name server infrastructure.
What are some common attacks involving DNS?
Some of the different types of DNS attacks are
Domain Hijacking – In this type of attack, the hackers perform the alteration in domain registrar and DNS servers to divert the traffic away from the actual original servers to new malware destinations.
Distributed Reflection Denial of Service – With this kind of attack, the source address is spoofed and hence the service request comes from its own server, this ensures the systems to reply back and flood the victim servers. This involves generating botnets that can create amplified attacks against the target.
DNS Flood Attack – In this type of attack, the hacker’s main goal is to flood the DNS with Distributed Denial of Attack to overload the server, so it cannot attend to any DNS requests.
DNS Hijacking – This is also called DNS redirection that involves malware infection to hijack the system service. The malware from a local system is used to modify the TCP/IP configurations that helps to gain access to DNS server infected by malware, which will further redirect the traffic to a malware website.
Cache Poisoning – This type of attack is also called DNS Spoofing. This type of attacks deceives the victims by exploiting vulnerabilities through which the hackers pass on the malicious data into the DNS cache. This type of attack is used to divert the victims to another remote server.
DNS Tunnelling – This type of DNS attack includes encrypted data that are sourced from other applications into the DNS queries and responses. The DNS tunnelling is performed only when the attackers have access to compromised devices, a domain name, internal DNS server and DNS host server.
Random Subdomain attack – This type of attacks has the traits of DoS attacks. This floods the existing domain with DNS queries to target various non-existing subdomains. This works to saturate host DNS server and therefore interrupt all the DNS record lookups.
What is a DNSSEC? Why do you need it?
DNS Security Extensions (DNSSEC) is a set of standards created by Internet Engineering Task Force to resolve DNS vulnerabilities and deliver protection from online threats. This ensures to enhance the overall security posture by resolving issues related to DNS weaknesses. It also provides authentication to DNS to ensure system protection.
What is the Difference Between DNSSEC and DNS Security?
DNSSEC verifies the responses related to DNS queries in advance before the client receives them.
DNS security is a concept or a strategy that assists in integrating the DNS into the network security plan.
Benefits for DNS security
Best DNS Security Software
With a rise in different types of DNS attacks, a good DNS security software like Cdome is required to ensure complete security solution to the end users. It assures absolute visibility, control and protection, content filtering to terminate malware infected websites. It entitles the admin to control the users’ web traffic to achieve network security instantly. It helps users to frame security rules and policies to terminate malware domains, botnets, drive-by-downloads and all the types of web-borne attacks. To know more about Cdome DNS security software, click https://cdome.comodo.com/dns-internet-security.php?af=7639