Oct 12, 2026 · 3 min · 3 segments
Let's learn the thin line difference between masquerad vs eavesdropping Attack#cybersecurity #infosec #pentesting #comptia#isaca #cybersecurity #infosec #isc2 #ccsp #cism
Prabh NairHost
So attacker, what it does, they intercept the information, they capture the authentication piece and resend to the server to gain access.
What they capture here is example like whenever you're trying to connect with the server, server basically ask for the password.
So when you enter username and password, that password is basically convert into the hash, and it's sent to the server for access.
When server receive the hash, they compare the hash with the stored hash, and that is how they verify the authentication.
Here, what attacker does is, attacker capture the hash and resend the same hash to the server.
It is same like, you know, y- you want to have a club entry, and you got the pass from some source.
He give the batch to you, and then you have reused and access the particular club and bar.
That's why nowadays we have a, uh, this called a tattoo system, stamp system, so you cannot copy-paste, right? Same thing here.
Every time now, whenever authentication requests happen, they will basically send with a random value, so every time we have a unique hash.
But in this attack, they capture the hash and present the same hash to the server and by which they gain access.
So this is what, what is called as a masquerade attack, and it is also called as a active attack.
But on the other side, there is another attack which is basically called as a eavesdropping, which is also called as a sniffing attack, where the attacker convert his network interface card into the promiscuous mode and start monitoring the traffic.
You can say like that overall both attack start with sniffing first, monitoring, and when it become passive, from there it become active by capturing the, uh, hash value and resend, and it is basically lead to the masquerade attack, and by this way, it directly compromising the confidentiality and integrity.
So attacker, what it does, they intercept the information, they capture the authentication piece and resend to the server to gain access.
What they capture here is example like whenever you're trying to connect with the server, server basically ask for the password.
So when you enter username and password, that password is basically convert into the hash, and it's sent to the server for access.
When server receive the hash, they compare the hash with the stored hash, and that is how they verify the authentication.
Here, what attacker does is, attacker capture the hash and resend the same hash to the server.
It is same like, you know, y- you want to have a club entry, and you got the pass from some source.
He give the batch to you, and then you have reused and access the particular club and bar.
That's why nowadays we have a, uh, this called a tattoo system, stamp system, so you cannot copy-paste, right? Same thing here.
Every time now, whenever authentication requests happen, they will basically send with a random value, so every time we have a unique hash.
But in this attack, they capture the hash and present the same hash to the server and by which they gain access.
So this is what, what is called as a masquerade attack, and it is also called as a active attack.
But on the other side, there is another attack which is basically called as a eavesdropping, which is also called as a sniffing attack, where the attacker convert his network interface card into the promiscuous mode and start monitoring the traffic.
You can say like that overall both attack start with sniffing first, monitoring, and when it become passive, from there it become active by capturing the, uh, hash value and resend, and it is basically lead to the masquerade attack, and by this way, it directly compromising the confidentiality and integrity.
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