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66
votes
7answers
7k views

Preventing Ethernet over power

I'm an electrician doing a job at a secure site. The client is concerned that someone could plug an Ethernet over power (EOP) connection into the switch and then connect elsewhere in the building. Is ...
8
votes
2answers
541 views

How to track down a rogue laptop connected to an un protected ethernet socket in a big organization?

I would like to know ways of detecting rogue laptops connected to Ethernet sockets not properly secured in a big organization that has a plain network segment. I know that this can be prevented using ...
4
votes
2answers
249 views

Ethernet security

I have a simple question that many people probably have and yet there does not seem to be a topic on this. I am visiting a company for a meeting and I have my laptop with me. This company is our ...
3
votes
2answers
232 views

How can I tell if my ethernet connection is being sniffed? [duplicate]

I read in another post that wired traffic is not protected: The only real additional threat that a malicious network administrator would pose, is that they have access to the wired side of the ...
2
votes
4answers
2k views

Can anyone tell if a wireless router is plugged into an Ethernet port (without actually seeing it)

In a large network if there is an Ethernet port in the wall, is it possible to tell if a switch or wireless adapter is plugged into it? (I'm talking about the cheap home routers - with the built in ...
2
votes
2answers
148 views

Is bugged CPU mean “gameover” for whole Computer? [closed]

I'm looking for answer on such question. Imagine that CPU bugged on the factory simply like Blue Pill, but for the network's interconnections. How exactly firewall of OS could protect station ...
1
vote
1answer
253 views

Security criteria for selecting a network switch?

I am looking to purchase a switch with 24+ ports. The set of security criteria that I should bear in mind when selecting a switch is not clear to me. I have tried to take other networking security ...
1
vote
3answers
2k views

Can an attacker sniff physical network traffic through WiFi?

So, I am wondering - is it possible for an attacker to sniff traffic on an Ethernet connection if they are not physically plugged into the modem/router hardware but they are connected through wifi? In ...
1
vote
2answers
2k views

How do I find a target on the wired network, from an attack system on Wi-Fi?

I'm trying to practice penetration testing on my home network. The target system is my desktop computer, which is connected to the network via ethernet cable. The attack system is my laptop, which is ...
0
votes
1answer
36 views

How to ensure security between devices from different manufacturers over multicast

I'm involved in the design of a protocol that allows different manufacturers to share data amongst their products. The protocol uses multicast over Ethernet so any device can join. Note that it's very ...
0
votes
1answer
259 views

MACSEC nonce/key uniqueness

802.1ae requires a nonce to be sent with each Ethernet frame in the MACSEC tag. The 96 bit nonce is formed by concatenating a 64 bit fixed field (based on MAC source address and port number) with a ...
-1
votes
1answer
357 views

How to Transfer packets from one ethernet card to another [closed]

I have a desktop with two ethernet(etho,eth1) cards and OSSIM installed in it. I have a laptop with webmin installed, where i want to write rules for transferring packets from eth1 to eth0. Both the ...