Users at a company report that a popular news website keeps taking them to a web page with derogatory content. This is an example of which of the following?
A.
Evil twin
B.
DNS poisoning
C.
Vishing
D.
Session hijacking
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A- An evil twin is a fraudulent Wi-Fi access point that appears to be legitimate, set up to eavesdrop on wireless communications.The evil twin is the wireless LAN equivalent of the phishing scam. There is no indication in here that the issue is Wi-Fi related, hence A is not the correct answer
C-Vishing – Vishing is the telephone equivalent of phishing. It is described as the act of using the telephone in an attempt to scam the user into surrendering private information that will be used for identity theft. There is no indication in here that the issue is VoIP or Voice related, hence C is not the correct answer
D-Session hijacking: In computer science, session hijacking, sometimes also known as cookie hijacking is the exploitation of a valid computer session—sometimes also called a session key—to gain unauthorized access to information or services in a computer system. So D Is not the correct answer
So it is clear that the Correct answer is “B.DNS poisoning”
• DNS spoofing (or DNS cache poisoning) is a computer hacking attack, whereby data is introduced into a Domain Name System (DNS) resolver’s cache, causing the name server to return an incorrect IP address, diverting traffic to the attacker’s computer (or any other computer).
• A domain name system server translates a human-readable domain name (such as example.com) into a numerical IP address that is used to route communications between nodes.
• Normally if the server doesn’t know a requested translation it will ask another server, and the process continues recursively.
• To increase performance, a server will typically remember (cache) these translations for a certain amount of time, so that, if it receives another request for the same translation, it can reply without having to ask the other server again.
• When a DNS server has received a false translation and caches it for performance optimization, it is considered poisoned, and it supplies the false data to clients. If a DNS server is poisoned, it may return an incorrect IP address, diverting traffic to another computer (in this case, the server hosting the web page with derogatory content).
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