Besides this, an attacker may also use sniffing tools to hijack packets by injecting malicious code into the packet itself, which executes once it reaches the target device.Ĭredit: Toolbox Example of Packet Sniffing AttackĪ good example of a packet sniffing attack is DNS cache poisoning, DNS is the protocol that translates the domains into IP for the understanding of the computer and to avoid unneeded lookup browser stores the IP address of such servers in their cache, in DNS cache poisoning attacker sniffs the request through Burpsuite or other interception tools and modify it to malicious DNS servers and cache stores that in this way the DNS amplification type of attacks can be performed. Unencrypted email communications, login passwords, and financial information are common targets for a packet sniffing attack. What is a Packet Sniffing Attack?Ī packet sniffing attack, or simply a sniffing attack, is a cyber-attack that involves intercepting and misusing content (like reading sensitive data) passing through a network in the form of packets. This article will explain what packet sniffing is, how it is done, different types of packet sniffing, and how to prevent packet sniffing, along with best practices. So, to obtain a strong foothold in today's world of cyber security, a firm grasp of fundamental terminologies like packet sniffing is crucial. As per benign or malicious purposes (for example by network administrators and cyber criminals respectively) These packets can be captured, modified, and destroyed before they reach their destination. From browsing the internet to managing the entire database of your organization, packets are transferred constantly over the network. These packets are data segments sent from one computer to another over a network and are involved in almost everything. Today we live in a digitalized environment where computers and other devices are continually transferring data over the network in the form of packets.
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