Network Security - securing network infrastructure and connections

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22
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4answers
5k views

Are popular porn sites more likely to be infected with malware?

I'm trying to help my friend understand this because he believes that since a site is very popular, that it's less likely to infect its viewers because of its security! Is a popular site less likely ...
3
votes
2answers
860 views

How can I get a fiddler-style trace of an iPhone / Android?

I want to audit the HTTP and HTTPS activity of apps downloaded onto my mobile device. What is the best way to do this? I own the device, can add a root certificate, and can connect the running ...
3
votes
2answers
98 views

Public facing computers in a Media Lab

I've just taken over administering a lab of Apple computers on a university campus. We have about 15 computers and I've discovered that they all have public IPs and domain names. Even our printer is ...
0
votes
2answers
642 views

how can I stop someone from watching my internet history? [duplicate]

I use someone's wifi network. Is there anyway to stop him by getting my browsing information or can I somehow hide my browsing history from him?
0
votes
1answer
326 views

How secure is split tunneling on a VPN?

What protocols get encrypted and go through the VPN? Is it just port 80 and DNS traffic that does not go through the VPN? Does this impose any security risks by running a split tunnel? Making the ...
2
votes
1answer
458 views

what can hackers do with a hacked router?

In Malaysia, our service providers are giving us a router with remote-admin available. It has come to my attention that with a simple line I'm able to find out the routers username and password. I'm ...
3
votes
3answers
147 views

When downloading from an https web page - will the download also use ssl?

If I click on a download link on a page that uses ssl, will the download also use ssl? If the answer is not (or: sometimes yes, sometimes not) - is there any way I can force it to be protected? I'm ...
2
votes
3answers
582 views

How does Network Discovery OFF protect my computer?

Yes, it seems that the computer will not respond to pinging. But any computer with a packet sniffer will be able to see my ip once I send any packet to the router. So basically, if I'm surfing the ...
0
votes
1answer
120 views

Choosing the Path in IT Security [closed]

I graduated last year from an Informatics and Security degree program. This program was taken in a Canadian college. It equipped me with the basic security knowledge in all fields; networks, systems ...
2
votes
2answers
244 views

What prevents this session hijacking from occurring? (SMB/CIFS example)

SMB/CIFS (file sharing, Windows environment) I understand when a client connects to a server there is a challenge/response system in place. However, once the client is connected that "connection" is ...
0
votes
1answer
185 views

Firewall hole punching [closed]

I'm interested in doing my thesis on Firewall hole punching. Hole Punching: A way to exploit NAT to open a connection TCP or UDP between a Client and a Server. What I'm looking for is a reason this ...
0
votes
0answers
52 views

How can I get a list of unsigned plugins in openvas?

How can I get a list of unsigned plugins in openvas? Are those plugins safe for use? When I run the scan on a test machine with nasl_no_signature_check = no, I don't get any results(not even any ...
1
vote
1answer
103 views

Secure way of opening web page from iOS without need of logging in

I am developing an iOS application and web page, both use same Parse backend. Web page contains some functionality that is not available in the iOS application. Therefore I would like to present the ...
1
vote
4answers
617 views

How do exploits and payloads work together?

I knew about the metasploit framework since a few good years ago, but I never really got into it. I have some knowledge when it comes to networks, but I am not a PRO. I've tested some things with ...
3
votes
4answers
17k views

How to monitor my home network traffic?

I have an ATT U-Verse Wireless router supplying 5 computers throughout my home. It is hardwired to my main computer. I have three children of all ages, one of which has had a tendency to make poor ...
0
votes
1answer
144 views

Router level filtering on home network [closed]

I want to block some part of a website or some videos from dailymotion or other site video sites. Type of network I have 7-8 devices(PCs, Mobiles, iPhones & tablets) all connected to a router ...
1
vote
3answers
317 views

What exactly does one get from a Nmap Scan?

I know nmap is a port scanner and its output shows all the open ports, the services running on those ports, the underlying OS and technology, etc. What should one take from this result in easiest ...
4
votes
5answers
3k views

Is MAC address filtering effective on a wifi router? [closed]

I want to improve the security of my home wifi. My neighbor wants to crack my Wi-Fi password with a nutcracker. I tried to activate the protection by MAC address, but now my laptop and smartphone ...
0
votes
2answers
184 views

How common and how easy is sniffing plaintext communication?

So the first reason we give to encrypt content is to prevent against a man in the middle sniffing all data. That is the reason ssh is used and not telnet for example. But in today's networks where ...
0
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2answers
321 views

SSL Finished message contents

Hi everyone I'm little bit confused about contents of Finished Message used during Handshake Protocol.In particular this message (client/side) contains the connection-id originally sent from the ...
3
votes
5answers
771 views

Can teleworking let my boss to sniff my network traffic? What else could he do?

My boss proposed me to code from home on the their machines via internet, in two possible ways: I would connect to their computer and work on their machine, as if I was in front of the computer(from ...
31
votes
3answers
12k views

How do you stop a hacker when their IP address is 0.0.0.0?

Wordfence reports the following visitor: An unknown location at IP 0.0.0.0 visited 4 hours 45 mins ago IP: 0.0.0.0 Browser: Baiduspider version 2.0 Mozilla/5.0 (compatible; Baiduspider/2.0; ...
1
vote
2answers
532 views

Way to make “DNS unblockers” safe?

Many people who live outside the US use "DNS unblockers" such as Unblock-Us to access region restricted services such as Netflix and Hulu. My understanding of these services is that for DNS requests ...
0
votes
1answer
73 views

Secure end-to-end when part of conversation must be over HTTP

We have a situation where a user's identity can be verified as follows: the network provider knows the identity of the user and injects secure headers into the HTTP request, which our servers can use ...
2
votes
2answers
139 views

Using HTTPS, can the target domain be seen?

If I go to https://google.com/q=test_query with from my browser, what traffic can be seen on the router? Can the domain name (google.com) be seen? If so, can I block all of the traffic to a web page ...
4
votes
2answers
721 views

3G Femtocell at home: can anybody connect, and is all traffic encrypted?

At our office we have bad reception for 3G. We bought a Femtocell device that provides a 3G connection for one specific mobile provider. This device is connected to our network via ethernet. I cannot ...
2
votes
1answer
391 views

How can the Google web crawler bypass portals?

This is a situation that I have encountered on a number of occasions. I will conduct a web search in Google, a link to a file (.pdf for example) will take you to that file on the server. It opens up ...
0
votes
3answers
270 views

How to set iptables to drop packets that I'm not listening on?

I've got a Kali Linux box I use for pen testing. I would like to configure my machine to DROP incoming packets, but only when I'm not listening on them. e.g. if I run a netcat listener on port 80, I ...
3
votes
1answer
452 views

What is DDOS TCP KILL?

I've recently been introduced to Kali Linux's webkiller tool, located in the websploit category. It works on the concept of Tcpkill. I don't understand how the DoS attack with Tcpkill works. Can ...
1
vote
1answer
376 views

Attacking a server on port 80 while only port 22 is open on the firewall

There is a question bugging me a after reading on network security. Theoretical situation: there is a packet-filtering firewall, which only accepts tcp/ip communication with destination port 22 on a ...
1
vote
1answer
602 views

DNS settings compromised from WAN on Edimax ADSL router

My home network Edimax AR-7084gB ADSL modem/router with firmware verison 2.9.5.0(RUE0.C2A)3.5.18.0 was exploited from WAN few days ago. The attacker changed DNS server settings - primary server to ...
0
votes
1answer
192 views

What's gonna happen when all IPv4 changes to IPv6? [closed]

I was guessing what could happen when all IPv4 be changed to IPv6 , like pen-testing tools and network configuration for common users. Will all the IPv4 be automatically translated to a IPv6 new one ...
3
votes
1answer
352 views

De-auth attack Reason codes and possible reaction

I am learning about Deauth attacks and how they work. I see that the Deauth frame has a reason code which indicates the reason for the deauth. I have tested the attack with aircrack-ng and this reason ...
-2
votes
1answer
680 views

Can a sysadmin spy on a Wifi connection? [duplicate]

Is it possible that someone who is in charge of a network serving many users, can see what site we visited? I mean, we have only one internet connection, and we used WiFi to be connected. Is it ...
7
votes
2answers
493 views

LTE networks and MITM

2G would leave you vulnerable to spoofed base stations. 3G tried to somewhat fix that using mutual authentication. Now, I tried to check how LTE handles this but I couldn’t find any usefull ...
3
votes
1answer
300 views

Can I perform WEP cracking from several laptops against 1 AP

I have successfully being able to perform WEP key cracking attack using aircrack tool. I want to allow my students to test this in a lab environment. They will be working fro their own laptops against ...
6
votes
3answers
293 views

Is it a bad idea to share the ssh host key in a diskless environment?

I am looking at this cluster of student work stations. They are diskless clients which boot from NFS. They also have sshd enabled. All of these machines share the same ssh host key (rsa,dsa,etc), ...
1
vote
1answer
383 views

Computer worms, propagation and exploiting vulnerabilities

I have been referred here to ask this question, so I am doing a research on computer worms, I have been through several sites and a few caught my attention, I have learnt that worms propagate through ...
1
vote
0answers
307 views

OpenVPN and firewall configuration in LuCI

I'm trying to find the best (most secure) configuration for the firewall in OpenWRT. I'm using LuCi to configure all the stuff. I have successfully created a VPN (OpenVPN). It is supposed the best ...
0
votes
1answer
284 views

Software to simulate attacks such man-in-the-middle or DoS [closed]

Sorry for novice question. I am completely new here..... I am already familiar with Asp.net, JavaScript, Java, C++, etc. I know the theories behind attacks and protocols, but I want to see them in ...
2
votes
2answers
124 views

Encrypt and Authenticate localhost-traffic?

I have some app-components on the same machine but in different languages which need to communicate. I am using socket communication over localhost to do so. The data transferred is confidential. ...
0
votes
0answers
18 views

How to secure my network in home environment from infected computers from the inside of the network? [duplicate]

The problem lays in my brother two computers. I have few computers on my own on which on one of them I'm doing business with transactions and stuff like that. However I have one network on which all ...
0
votes
1answer
78 views

Sending GET requests to non-servers?

I ran a couple of wireshark runs for my computer and noticed inbound GET requests. Is it legitimate traffic for there to be GET request traffic inbound to my home computer if my home computer isn't a ...
4
votes
1answer
471 views

Can I isolate a specific computer on my network?

My brother gets malware infections practically every week. Apparently he had a infection over the past 24 hours, I only noticed it because I checked the router logs and saw a massive amount of network ...
2
votes
1answer
414 views

One-Way Data Transfer Cable

Is there a cable that physically only supports data flow in one direction (out)? The idea here is to put this on a system that can only export data so that there is very minimal risk of the ...
0
votes
1answer
125 views

Tablet / phone app security in unsecured networks

Although reluctant to use my laptop on unsecured networks, I at least know that without me launching any processes or logging into certain web pages, that I will not be sending any credentials over ...
1
vote
0answers
45 views

Key Distribution using multicast

I am trying to come up with a solution for a system where i need to generate a key (Kn) from time to time and distribute it to a large number of servers in a private network. Since it has to be a ...
5
votes
2answers
3k views

Securing remotely accessible IP cameras that do not support HTTPS

I have some IP cameras set up on my home network, which is WPA2 protected. These cameras are setup to be accessible from the Internet thru my router's DDNS address, and port number. So for example, ...
1
vote
3answers
110 views

Is it safe to share my hostname

I am using GNU/Linux. Sometimes, I copy/paste code from the terminal (like user@hostname ..) to put it in a forum thread or a blog ..etc And I was always wondering that it is better to hide it . Is ...
1
vote
0answers
165 views

Security risk of connecting one mobile device to another mobile device's hotspot

Is there any risk when connecting an Android Phone to a [Verizon] iPhone's Hotspot? If there are I'd like to know about solutions. The Android Phone will basically be tapping the data plan of the ...