Network Security - securing network infrastructure and connections

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-2
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2answers
69 views

What can someone do to my computer with access to the modem?

I had to give my new neighbor my WiFi password. He's now connected to my internet and I worried about some things: The modem is connected to my PC. What can he possibly do while he's on my internet? ...
7
votes
1answer
379 views

How to protect a Wifi network from Microsoft WiFi Sense

Microsoft is deploying a new feature, WiFi Sense, which provides users a way to easily share passwords to wireless networks with all of their contacts. This introduces a new security failure mode: a ...
1
vote
2answers
114 views

Opened Ports on a Router attack vectors

I have read somewhere that it could be dangerous to use unknown networks because the router owner could open ports and attack programs that would run on the victim's system on precisely those ports. ...
1
vote
3answers
3k views

How to search for evidence of Camfecting (webcam hacking)?

I'm worried about camfecting (webcam hacking). The camera light on my mac (running OSX) is not on, but it isn't hard wired so that doesn't say a lot. I've ran a virus scan but no signs. Now my idea ...
-1
votes
1answer
79 views

How separated should a management VLAN be from the production VLAN?

I was after a little bit of advice regarding Network Management. Users will enter the network and hit a remote desktop server. On from this, they will pass through firewalls to the core switch. When ...
7
votes
3answers
336 views

What tools are available for distributing and syncing firewall rule-sets to multiple devices?

I am looking for a solution to be able to distribute and sync firewall rule-sets to multiple devices. There are a few solutions out there such as Playbook by Matasano but it comes with an expensive ...
22
votes
2answers
2k views

How does this HTML5-based “Mass Router Infection” scheme work?

I read this article stating that purely through a website, "without any user interaction" mass router infection is (/was?) possible. I'm not sure that this problem still exists as it was posted 3 ...
3
votes
2answers
50 views

When should I drop a packet with ICMP type 3, code 9 or 10, TCP RST, or TCP ACK?

This answer says there are a few ways of dealing with a blocked packet at a firewall: At each of these levels a 1st IP packet (and any other protocol packet as an ESP or AH packet) might receive ...
3
votes
2answers
9k views

Block all internet access from a computer except for allowed applications and domains?

I want to block all internet access from a computer except for allowed applications and domains. E.g. BLOCK ALL Except security.stackexchange.com/... Except skype.exe How can I do this? -It needs to ...
4
votes
1answer
110 views

Is it possible to trace a backend through a reverse proxy?

I'm creating a reference network topology for a WebSocket chat application at work, and I'd like to have something clarified for my own understanding. The current topology involves a reverse proxy ...
1
vote
1answer
102 views

Private VPN server in public cloud

I need to encrypt all my traffic, because I often work in unsecure network environments. My questions is this: if I buy my server from VPS providers (amazon ec2, digitalocean, etc) - how secure ...
3
votes
1answer
140 views

Is this the end of malware use of DNS?

I read about the release of a free dataset of malware related DNS queries called "Predict". A researcher or network security team can download or query this data set and use it to identify malware ...
0
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1answer
55 views

Encrypting layers of OSI

I was reading that WPA2-PSK encrypts layer 2 of the OSI network model. What is the danger of having this layer in plaintext (I know it can be decrypted very easily from within the network)? Is there a ...
2
votes
1answer
139 views

Why would a corporation NOT want to allow users on a corporate network to RDP to their specific desktops?

I have a multitude of users that are requesting the ability to RDP from other workstations, on the same network, to their specific desktop computers. I would like to know what the risks of this are ...
-3
votes
1answer
43 views

A collection of tests and demos for security headers and TLS configurations [closed]

There are (or have been) various websites designed to educate and provide examples on good / bad configurations of security headers and TLS configurations (e.g. https://badssl.com/) I want to build a ...
3
votes
2answers
196 views

Wireless password available in plaintext

Running below command in as admin from Windows : C:\Windows\system32>netsh wlan show profile name=MY_WIRELESS_NAME key=clear Outputs : Security settings Authentication : WPA2-Personal ...
2
votes
1answer
728 views

Zeus botnet source code

I am doing my project on botnets and wanted to understand the source code of the Zeus botnet. Where is the right place to get started with some analysis of zeus botnet source code? I need a good ...
1
vote
2answers
197 views

Can I connect to a network without being detected? [closed]

Some people use software like whoisonmywifi and so on. Is there a way to bypass this software? I think it pings all IP addresses like 192.168.1.0/24 so it will ping all addresses. Can I disable ...
12
votes
4answers
7k views

Looking for botnet IP address feeds to protect against DDoS

I would like to get a live feed of botnet IP addresses delivered from a service and block them under certain conditions. Preferably community based/open source but open to looking at worthy commercial ...
3
votes
1answer
47 views

Event codes for Unix [closed]

I have to write alerts in SIEM Tool. Do we have any events code for Unix as we have in Windows. If yes, where can I find that? If not, on what basis can we write alerts for unix flavours or ...
3
votes
0answers
156k views

Hack into a computer through MAC and IP address [closed]

Is my computer vulnerable to someone who knows my modem's MAC address and my public IP address? What kind of vulnerabilities would this imply? Could they actually get access to my computer just with ...
0
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0answers
51 views

How to monitor websites being visited on network? [duplicate]

I want to monitor the websites that are being visited on my wifi network by the different IPs connected to the network. Is there a way to do this, other than Wireshark?
0
votes
5answers
128 views

Monitor websites being visited on network

I need to monitor the websites being visited on my wifi network by the different IPs connected to the network. What is the best way to do this? I spent some time with Wireshark but I feel it is a bit ...
1
vote
1answer
48 views

Link(s) between subnet mask, IP address and subnet ID [closed]

I am studying CompTIA Security+ material and am struggling to understand the link(s) between a subnet mask, an IPv4 address and a subnet ID. The question that I'm working on is as follows: Your ...
0
votes
1answer
50 views

What kinds of attacks can VLAN's mitigate? [closed]

Assuming these very basic kinds of attacks: Header based Protocol based Authentication based Traffic based What would using a VLAN mitigate? Several people seem to be overthinking the question. ...
0
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0answers
34 views

SDN Security - why not attack the controller itself?

I have been looking into SDN (Software Defined Networking) and one advantage of using this is to be able to redirect traffic to stop DDoS attacks. The traffic is ultimately thrown away. My question ...
2
votes
2answers
76 views

Are documented networks easier to attack? Are undocumented networks easier to protect?

I am learning about network documentation for the first time and have come across the following statement: Undocumented networks might not be protected and can be used to support insider attacks. ...
2
votes
0answers
72 views

Ways to prevent traffic injection by ISP [closed]

I live in a big brother country (Egypt, but valid to many other countries), which apparently bought Hacking team and fin fisher software since couple of years. After reading about the very-easy ways ...
2
votes
3answers
165 views

How to protect against rogue Base Stations? [closed]

I just read the answer to the question here and it sounds surprisingly simple for calls/SMS (and data?) to be intercepted by a fake base station. From what I understand, if you were to walk past ...
5
votes
6answers
13k views

monitoring outgoing network traffic [closed]

The graphs for one server that I am using are showing consistent 7.5 kb/s outgoing network traffic that started a few days ago. How can I monitor/log/capture/analize this traffic to see what is it, ...
0
votes
3answers
1k views

What is same site scripting and what are some exploit scenarios?

I know it is an issue with how DNS is configured , but is it really dangerous if the attacker couldn't access your network?
2
votes
1answer
61 views

How can I detect subnets? [closed]

Given a WAN, which is connected to the internet via a single exit point. Inside this WAN, I don't want to have any subnet structures. Every user gets his own access point, which he can expand via ...
0
votes
2answers
139 views

Is it safe to put my own router in my neighbour's DMZ?

I use my next door WiFi for a small charge as I am unable to install my own broadband connection. I have a 300Mbps WISP router connected with a fixed IP to my next doors router (192.168.0.2). My ...
21
votes
8answers
5k views

Is there a way to make a WEP-secured AP uncrackable?

For some days, I was feeling that my Internet bill was booming. Then, I recently found out that a boy near my house was accessing my router to use the Internet. Then, I read some articles how to crack ...
0
votes
3answers
106 views

Is it possible to get Network Domain from Client with PHP or Apache? [closed]

I'm working on a solution to identify client Network Domain or Workgroup in a private network. Based on it, I must change some access permissions. I can't do that through IP address because it isn't ...
4
votes
3answers
217 views

Is there a way to block your ISP from controlling the password of your main router?

I got internet installed at my home earlier today by Bright House Networks. When I asked the installation technician about changing the router administration password, he said that he can change it ...
3
votes
2answers
113 views

Share network with neighbor

My neighbor asked me if I wanted to share his network with me. Internet access is a little more expensive here than I am used to in my country. Before saying yes I wanted to know if I had risks in ...
1
vote
0answers
71 views

Web/search engine spider on local network?

I was setting up a test webserver on my local network earlier, and whilst sorting out the firewall I noticed the following in the log (/var/log/ufw.log - I'm using UFW on Ubuntu 14.04): Jul 9 ...
1
vote
0answers
72 views

Adding a binary to the firmware of a routing device [closed]

I've been playing around with a router d-link dwr-921 and found some vulnerabilities in the web interface. I still haven't managed to get shell access and now I'm thinking about modifying the firmware ...
2
votes
1answer
5k views

In Metasploit, how to use a custom exe as payload?

Question was once on a mailing list but wasn't answered. I want to use a custom exe as a payload in metasploit. For example when I use exploit/multi/browser/java_atomicreferencearray and want to ...
3
votes
1answer
28 views

Why doesn't netsplit riding work on single node networks?

I've been reading up on netsplit riding (a.k.a riding the split) and according to multiple sources, it's only a risk to multi server networks. Now I understand that a netsplit occurs when a node ...
38
votes
1answer
191k views

Why can you bypass restricted WiFis by adding “?.jpg” to the URL?

I recently read an article on Hacking a commercial airport WLAN. It's basically about circumventing paid airport WiFi redirections (they redirect you to a certain URL when you type something in the ...
8
votes
1answer
1k views

Does restricting the names of computers allowed to connect to a wifi network provide any security

In response to a statement elsewhere that MAC address filtering was essentially useless for protecting a wifi network because it was trivially by passable by network attack tools, I was asked if the ...
0
votes
1answer
174 views

WEP password cracking

I was testing WEP password cracking on my router. I had set a thirteen character password ("TESTING123456") and tried these commands: airmon-ng start wlan0 Then I started airodump-ng using this ...
9
votes
3answers
621 views

Can an attacker “simulate” a private IP address?

I have a SSH server with a rule that does not allow password connections outside the local network. So people already on the local network, either physically or via VPN, are allowed to connect with ...
21
votes
8answers
4k views

Is possible to get infected by only staying connected to the Internet (nothing else)?

I have a router and I'm the only user. I have a computer with Linux and a tablet with Windows 8.1. Because of a few problems, I had to reinstall Windows on the tablet. Since I'm a bit paranoid about ...
0
votes
3answers
62 views

Why is shared less secure than open when it comes to WEP?

According to this post, Jeffrey Tippet (Microsoft employee) writes: WEP can run in two modes: shared and open. Despite the names, shared is actually less secure than open. Because of this, our ...
1
vote
1answer
46 views

Padding of 802.11 packet with 0's in libpcap [closed]

I am trying to send probe request to Access Points.But whenever I send a probe request packet it is padded with 0's i.e I see two packets on wireshark for every packet I send : a non-padded packet and ...
3
votes
2answers
547 views

How to know if I'm under a MITM attack

If I am connected in a public WiFi, is there any way to know whether I am under attack or not while browsing sites using SSL? For example, if I visit facebook.com and the URL starts with "https://", ...
3
votes
3answers
822 views

Enumerate the subdomains of a given domain - what's the point?

There're a number of security tools out there that enumerate the subdomains of a given domain. I wonder: What's the purpose of that in terms of security / hacking? Is there any way to do that other ...