Network Security - securing network infrastructure and connections

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-4
votes
0answers
37 views

Sniffing the packets [on hold]

Is there a way to protect myself from being sniffed without using some software(encryption), if not, what is the best software? So its just a home network. Im not in LAN, or on WiFi etc
13
votes
2answers
711 views
+50

How does the Copyright Alert System work? Who has implemented it?

Some ISPs are participating in a Copyright Alert System that notifies content authors of violations of their copyright. I'm concerned how this oversight relates to my private traffic, and what laws ...
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 ...
2
votes
1answer
238 views

WLCTL protocol detected by sniffer in an Android tablet

I detected that my rooted Android tablet had a slow connection. Trying to find what is taking the bandwith, I installed a firewall (DroidWall) and I blocked all the applications thinking that one of ...
0
votes
1answer
61 views

Strange IP's on my firewall log

Check the screenshot of my router firewall log below, I can see traffic originating from strange IP addresses to my public address. What are these? I've just setup this router few hours ago, am I ...
10
votes
4answers
2k views

How to break MAC address filtering?

If a MAC filter prevents you from connecting to a network, how can you break it or include your device's MAC in that filter?
13
votes
8answers
7k views

Why is ARP poisoning killing all network activity?

Using ettercap and ARP poisoning, I was able to eavesdrop on other connections, but suddenly I was unable to make any connection to the Internet. To restore Internet connectivity, I had to restart my ...
2
votes
1answer
335 views

Snort even though working properly does not report majority of rules

I have installed Snort 2.9.7.0 and it does not detect majority of attacks, such as nmap port scans, downloading exe files, opening documents containing keyword "root". I use Snort together with ...
1
vote
2answers
32 views

Device visibility on a network

At my college dorm's Wi-Fi network, one device can play to any other network-connected, YouTube-enabled device on that network. Apple devices can also AirPlay to the one Apple TV connected here. How ...
1
vote
1answer
66 views

Network setup for malware analysis lab in a corporate view

I am planning to setup a malware analysis lab in the Incident Response team of the company I work for. As I am basically a malware analyst I some how managed to get up with the malware analysis lab ...
0
votes
0answers
4 views

How to configure a log aggregator to authenticate data? [migrated]

Background: Remote log aggregation is regarded as a way to improve security. Generally, this addresses the risk that an attacker who compromises a system can edit or delete logs to frustrate forensic ...
0
votes
0answers
15 views

2 IP cameras with same configuration but different behaviour [migrated]

I have a Vodafone Station router, and 2 IP cameras connected to it through an Ethernet cable. Both have the same configuration. Both DHCP enabled, one has IP 192.168.1.10 with port 81 and the other ...
4
votes
3answers
252 views

How do RATs access computers through routers?

I've started trying to increase my networking security at my house. One thing that worries me (because other people in the house are always downloading viruses that come along with "free" games) are ...
3
votes
2answers
67 views

TCP- or UDP-based Port Scans, IP Fragmented Packet

Is this normal or is someone trying to hack/attack me? How can I stop this? My router is a Cg3000v2 netgear provided to me by Optus. [TCP- or UDP-based Port Scan]411 Wed Aug 26 00:28:08 2015 ...
4
votes
5answers
4k views

Does using WPA2-Enterprise just change the attack model vs WPA2-PSK?

As far as I can tell based on the reading I've done so far, WPA2-Enterprise uses the same encryption and security algorithms and methods as WPA2-PSK, with the addition of using another service for ...
-2
votes
0answers
7 views

Network setting for kali linux host on virtual box [migrated]

I am running Kali Linux on virtual box. I do not have an external network adapter on my laptop. I am currently learning to use Metasploit. In order to set the payloads I need the IP address of Kali ...
1
vote
1answer
142 views

Network security from the inside

Yesterday I heard some people talking about not allowing users to RDP into servers they shouldn't and such which got me thinking about my companies network and the security of it. Can someone point ...
-4
votes
1answer
64 views

How to see all incoming and outgoing traffic of other nodes while on a LAN?

I've got two computers. A & B. While sitting on the computer A how can I see the incoming and outgoing traffic of computer B? Or can I? Note: Please try to answer in a non-technical language as ...
1
vote
1answer
418 views

802.11 Authentication/Association and WPA/WPA2 authentication (Four-way handshake)

So I have read that 802.11 standard requires stations and APs to go through the authentication and association before communication can take place. I also know that WPA/WPA2 has its own authentication ...
1
vote
1answer
65 views

Does the carrier network autheticates itself to the SIM card?

From my understanding this is how SIM authentication works: When the mobile device starts up it obtains IMSI from the SIM card and send it to the operator network Operator network finds the Ki(128 ...
0
votes
2answers
175 views

Identifying the correct SSID [duplicate]

Suppose a Wi-Fi network is present with a given SSID. Now I create a hotspot with the same SSID as that of the original network. If a user tries to connect to the Wi-Fi, which one will he connect to? ...
8
votes
2answers
9k views

Recommended Cipher Suites for TLS 1.0, 1.1 and 1.2

There are a lot of cipher suites defined in the in the specifications itself of TLS 1.0, 1.1 and 1.2. And furthermore, there exist RFCs which add even more cipher suites to a specific version (e.g. ...
0
votes
0answers
19 views

Options to protect an outbound initiated connection IP?

Consider a service that has 3 separate organizations in a SaaS model. The end user(#1) connects to the first provider(#2) and then initiates a function from within the #2 that connects directly to ...
33
votes
7answers
52k views

What is the difference in security between a VPN- and a SSL-connection?

I would like to design a client-server application where the server is placed on Internet. I assume that I could set up the client-server connection using VPN (is it using IPSec?) or using a SSL ...
2
votes
1answer
180 views

ARP poisoning and port forward together

Suppose these assumptions: Router IP address: 192.168.1.1 Router MAC address: 00:00:00:00:00:00 My IP address: 192.168.1.2 My MAC address: 00:00:00:00:00:01 Victim IP address: 192.168.1.3 ...
42
votes
5answers
6k views

Bring your own phone to a (new) job: Consequences?

I am starting a new job, and I have the choice to receive a phone from the company, or to bring my own. I am considering using my own phone, to avoid having an extra device, but I want to better ...
2
votes
1answer
120 views

User Binding Request with credentials in Lync Dump

I've dumped a call between two lync clients and saw that there were some UDP packets that look like this: Server -> Client 1132 14.495362000 <serverip> <clientip> STUN 146 ...
3
votes
1answer
157 views

How to sniff [possibly encrypted] TDS protocol data from the host the client application is installed on?

Let's say, there is an .NET application on a windows 7 host where I have administrator's access rights. The application works with remote MS-SQL server which I don't control, it also seems that the ...
0
votes
1answer
60 views

Is it possible to setup a rogueAP that indicates it is encrypted with WPA2 but in fact is open?

I want to create an exact duplicate of an existing access point that use WPA2 AES (CCMP) for encryption so that the clients will automatcally be connected to my AP.So I uesd this command airbase-ng ...
32
votes
4answers
8k views

Is there any meaning in only allowing port 80 and 443 today?

It's become standard fare for security minded organisations to block everything other than 80 and 443. As a result, more and more applications (other than web browsers) are learning to use these ports ...
12
votes
4answers
794 views

Wireless Activity Monitoring for PCI DSS Compliance

In an effort to be PCI DSS compliant, I took a trustkeeper.net questionnaire. I failed the question that asks: Is the presence of wireless access points tested for by using a wireless analyzer at ...
3
votes
3answers
134 views

Open ports with no services binded to them

I have been wondering, if a port is open for inbound connections on the firewall yet there is no service binded to it, would that be considered a security vulnerability?
5
votes
1answer
153 views

Ideas on how I can fragment captured network traffic?

I am trying to create a lab environment where I can analyze common IDS solutions (starting with Snort specifically) and their ability to reassemble fragmented IP trains. I have a collection of ...
2
votes
1answer
238 views

Why Skype discloses my IP address to anybody? [closed]

Apparently there is a Skype exploit that allows people to obtain your IP address through your Skype username if you're online. The problem has existed since 2012. There exists countless websites which ...
6
votes
2answers
313 views

Is it possible to sniff traffic of a remote network? (With admin access to router)

Me and a friend of mine are simulating a widespread scenario where router configurations are untouched (default passwords) and are visible from the internet. Him, acting as the victim, will constantly ...
0
votes
5answers
2k views

How to send HTTPrequest anonymously [closed]

I want to send a HTTPrequest to a specific web address, but with different IP address. For example, if a webserver detect IP address, then add it to a database. If another request come from a IP, ...
1
vote
1answer
55 views

Is there a vulnerability when TLS is decrypted, then encrypted with OpenSSL that is vulnerable to BEAST or CRIME?

Assume that the following TLS proxy exists User <-----> Load Balancer that decrypts, encrypts <------> WebServer Where the web server is running a vulnerable version of OpenSSL. Can ...
1
vote
1answer
146 views

running botnet for analysis

I a very curious to understand botnets practically. I want to run a p2p botnet (storm or waledac) for analysis and learning. I have mainly two issues: Where can i get access to binaries of either ...
11
votes
0answers
352 views

WPA2 ephemeral key derivation

I'm trying to learn how ephemeral keys in WPA2 4-way handshake are derived. Starting from 4 EAPOL packets sniffing, I successfully derived PMK and PTK reading ANonce, SNonce, and knowing ASCII-PSK ...
3
votes
1answer
120 views

Segregating a Printer in my Enterprise Network

I have a EAP-TLS network at home which I've managed for some time now. I just got a new Brother HL-5470 printer so I can finally print things at home, which is really nice. The only problem is that ...
1
vote
1answer
92 views

Automating NIKTO scanner

I am working on NIKTO automation. I have a text file contains list of IP addresses along with their ports open. I have already made nikto script. Script functionality - it takes IP addresses and then ...
1
vote
1answer
900 views

Router detecting constant ack flood attacks and port scans

I first noticed this yesterday in my logs - while I was configuring the router settings, so I don't know how long it's been going on. What should I do? I reconfigured my router with more secure ...
1
vote
1answer
161 views

How to configure Kismet to redetect same BSSIDs in a loop?

So I am working on a tool to detect any wifi device using Kismet. When I use Kismet, it works fine, but my problem is, it detects a device once, and until the MAC changes, it wont detect it again. ...
1
vote
1answer
63 views

Unidentified Filemount in Ubuntu

Not sure if this should go under security or Ubuntu but, I believe that my server got hacked somehow. Its being hosted on Digital Ocean and I mainly use it fiddle around with things. Today, I got a ...
2
votes
2answers
62 views

Preventing active OS fingerprinting with iptables

I'm studying network security on my own and I have a few basic theoretical questions here. Would dropping every incoming packet at the network layer be enough to prevent active OS fingerprinting? I ...
5
votes
4answers
51k views

IP address of an iPhone

Recently I logged on to my bank account via the Chase app on my iPhone. I received a message that another device was currently logged on to my account and "would I like to end the session"? Of course, ...
2
votes
4answers
19k views

Can viruses transfer from phone to computer over the network?

I don't know if this is the right place to ask but I heard that adult websites (porn) had viruses. I used to look up porn on my iPhone (I won't anymore) and I understand that there aren't viruses for ...
2
votes
2answers
136 views

Is this exploit on household appliances really as bad as it sounds?

CNN article link. The article claims that a household appliance can be hacked by reprogramming the circuits inside of it to release electromagnetic waves that could release system information, but ...
31
votes
10answers
28k views

DDoS - Impossible to stop?

Is it possible - in theory - to stop1 a DDoS attack of any size? Many people claim it's impossible to stop DDoS attacks and tell me I just shouldn't mess with the wrong people on the internet. But ...
4
votes
5answers
293 views

Is encryption possible at the physical layer?

When we talk about encryption in relation to the OSI Model we usually hear about encryption at Application (Email - PGP), Transport (SSL), Network (IPSec) and even Data Link Layer (WPA). But I have ...