Security for 802.11 wireless networks.

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1answer
22k views

How long to brute-force WPA password?

Bob has a password (for his WPA encrypted wifi) which is 8 characters, all lowercase, and not a dictionary word. Eve lives next door to Bob and wants to illegally hack his WPA. The number of ...
3
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1answer
3k views

Which part of the eapol packets contain WPA password Hash?

I have captured wifi traffic from a WPA network using Wireshark. I filtered the results for "eapol" packets and noted in the info column there are message type 3 and type 1. I believe this is two ...
3
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3answers
2k views

Effective wireless scanning to meet PCI DSS 11.1?

PCI-DSS section 11.2 requires the business to "Test for the presence of wireless access points and detect unauthorized wireless access points". However, this is more easily said than done. Simply ...
3
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1answer
2k views

Wireless MAC Address Filtering - Authentication/Association

Can somebody explain to me how a wireless AP denies access to the network if the client does not have the correct MAC Address. Does it not send a probe response when a client has not got a correct ...
3
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1answer
421 views

WPA vulnerabilities for pentest

As I am a network&IT enthusiast, I was asked by a friend to pentest his WPA network. I'm wondering if there is anything else I can do beside a bruteforce attack, trying the KARMA attack on ...
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4answers
2k views

Can one connect to wireless router without cracking WPA2 handshake?

Is it possible to re-broadcast the appropriate parts of a captured four way handshake and connect to the router? If not why so?
3
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1answer
815 views

Does a TMSI change often enough to prevent tracking?

A company called Path Intelligence has a product called Footpath which uses the TMSI, WiFi MAC address, and bluetooth MAC address to track phones as they move through stores. However, I don't see ...
3
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2answers
203 views

How can I tell who's using my cookie information on an open LAN?

I think someone is using my cookie info to log into my Facebook account on a public Wi-Fi network. How can I determine if this is happening and from what IP address?
3
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1answer
400 views

captive portal wikipedia article

Something on the wikipedia page regarding captive portals have confused me: http://en.wikipedia.org/wiki/Captive_portal When a client requests a website, DNS is queried by the browser. The ...
3
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1answer
1k views

ARP-poisoning on wireless network - no packets

I've started working with ettercap and ARP-poisoning; however, I've sumbled upon some problems. I've executed the following command: ettercap -i wlan0 -w log -T -M arp:remote /192.168.1.254/ ...
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2answers
88 views

Could SSL-like encryption be used for not password-protected wireless access points?

I'm looking at ways an outsider (i.e. someone without a possible password) of the network could sniff the communication within the network, specifically focusing on WLAN. This is what I understand ...
3
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1answer
165 views

WPA2 enterprise credentials involved in encryption?

Since encryption keys are session-based in WPA2 enterprise, if person A obtains person B's credentials, will person B's encryption key still be safe? Is there any way person A could use person B's ...
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1answer
558 views

WiFi Direct/WPS key question

So far, I haven't seen any PoC or real-world attacks against WiFi Direct, but I see the potential because it relies on WiFi Protected Setup (WPS) for establishing the connection. Tools like Reaver ...
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2answers
172 views

How are WPA Keys stored on a router?

Should the router only store a hash of my encryption key or is it stored as plaintext? I believe (but not certain) that the WPA key is itself an encryption key, buy shouldn't that be encrypted like ...
3
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1answer
390 views

Strange packets coming over wireless, looking for clues

While running airodump-ng in town, I have noticed an unusual type of AP or pseudo-AP. There is a steady stream of wireless beacon frames coming in on channel 6. The frames are valid, but have several ...
3
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2answers
8k views

How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?

This is what I believe to be an interesting challenge :) A relative (that lives a bit too far to go there in person) is complaining that their WIFI/Internet network performance has gone down ...
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0answers
595 views

What is the most common default security setting on most consumer and small business Wi-Fi routers? [closed]

I am writing a paper right now which involves Wi-Fi security (I'll spare you the details). A major argument in this area depends on the assertion that Wi-Fi routers come defaulted as open networks (ie ...
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0answers
111 views

How to find rogue access points? [duplicate]

Possible Duplicate: Tracking down a rogue access point Rogue access points can pose a threat, when employees connect to them. What are some techniques that can be used to find these ...
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4answers
510 views

Which Wifi encryption method is secure?

you may wonder apple just removed ethernet port from new macbooks which means we have to use wifi! i made a wifi hotspot with my windows laptop to use for my macbook (my modem don't have wifi because ...
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3answers
364 views

Sniffing the sniffer

A sniffs B while B is sniffing C. What's the traffic in A? Does A catches both B and C traffic or only B's?
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2answers
675 views

Exploiting free WIFI security

So I was watching some Backtrack learning videos and similar stuff, and noticed how there is always talk about getting people's information. For example if someone using unsecured WIFI you can see ...
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2answers
989 views

How to secure an open wifi access point

I have seen tremendous amounts of guides on how to protect yourself when using a public wireless internet connection, but nothing about how to protect your public access point from malicious users. A ...
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2answers
659 views

I fortuitously accessed the configuration of unknown router: how come and what now?

I've encountered a strange thing. I connected to an open Wi-Fi, then I was just fooling around. First, I visited 192.168.0.1 and it was a router configuration page but default password didn't work. ...
2
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2answers
314 views

Hidden network no beacons

Do hidden networks send beacons? I have seen hidden networks in backtrack and Ubuntu using airodump-ng. The output is weird like the power is shown as -1. Why does this happen? As you can see ...
2
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2answers
228 views

Wifi Sniffing Prevention

I share my wifi with my brother. Recently I came to know he is sniffing on my browsing. Is there a way I can prevent him from sniffing on my browsing? PS: I can't afford VPN.
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2answers
2k views

Is it practically possible to spoof a WLAN access point?

I want to try something out, but I wanted to see other opinions from you guys. What I have: WLAN Access point, with WPA2, ESSID: testing. Home router, I can change the configuration and everything ...
2
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1answer
7k views

Why it does not matter whether you type HEX or ASCII as WEP WiFi password?

I know that I can pass password in HEX as a keyphrase to WiFi network using WEP encryption as well as ASCII. But somehow you cannot get the ASCII when you only know HEX value. Can anyone explain the ...
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2answers
152 views

Computer's IP address used by another in closed network?

I got an alert in the newest OSX (newest Macbook Air) and in Eduroam network that my IP address is used by another machine. This is my first time in life. I think I may have been attacked because I ...
2
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2answers
510 views

How to prevent user's mobile phone position tracked

Trying to follow up this post How to trace a (mobile) phone? , the answers on how to prevent being tracked while you own a mobile phone are: You cant. (even if you use disposable phones etc) 1) Why a ...
2
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1answer
2k views

Should we block all plaintext authentication and require authentication over an encrypted channel?

Should we configure our servers to require the authentication happen over an encrypted channel and block all methods of unencrypted, plaintext authentication over? I recently configured my servers to ...
2
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1answer
880 views

How the shopkeepers are getting MAC address of wifi enabled smartphones

It is clear that some big mall's are tracking all the wifi enabled mobile phones before they are connected to the network..how can it been done? I have the similar issue.. how to get the MAC address ...
2
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2answers
19k views

Access router if you don't know password

At home I have a wireless cisco router. Unfortunately I wasn't smart to change its ip or passwords. So anyone who is connected to it can access 192.168.0.1 and log in as admin using password admin and ...
2
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1answer
576 views

Comprehensive book to study about wireless technology

I am searching for a comprehensive book on wireless technology that covers in detail almost everything about wireless technology, including the related protocols, security, hacks, etc. I know it is ...
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3answers
139 views

How to know what others browse through the network?

My friend connected to WIFI and after 5 minutes he told me which sites I had actually been browsing, and who I chat with. My question is: how do I defend myself against this, and also how did he do ...
2
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1answer
128 views

How secure is WiFi roaming if clients connect automatically to access points with the same SSID and security?

After reading a bit about WiFi roaming where multiple access points are set up with the same SSID and WPA/WPA2 shared key, I'm wondering how secure the concept of WiFi roaming is. If clients connect ...
2
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3answers
1k views

How to detect the “Hello packets” sent by a wifi enabled smartphone

Actually I have a case where I should able to detect the mobile phones and get some data about the device available in my network range without connecting to the network. I have seen somewhere that a ...
2
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1answer
3k views

Why is a CA certificate required for EAP-TLS clients?

When setting up clients with WPA2 EAP-TLS, most clients (ie: my phone, my computer) require both a client public/private keypair (for obvious reasons) and a certificate authority certificate. It's ...
2
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1answer
868 views

Possible to safely send money via Paypal on public wifi networks?

I will be away for 1 month and during that time period I will have Internet access only via public wifi networks. I tried finding on the net tutorial on how to safely access and handle paypal ...
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3answers
545 views

What are the risks of a rogue Access Point? What lessons can be learned from the Wifi Pineapple?

I'd like to educate colleagues and peers on rogue access points using the tool "Wifi Pineapple". What are some specific security-related lessons I could demonstrate? If applicable, what are the ...
2
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2answers
996 views

Encrypt WiFi connection per connected user

One of the questions that comes on quite often is about WiFi encryption. Now imagine that you have multiple users connecting to one AP. With a simple WPA2 protection setup they can still sniff each ...
2
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3answers
5k views

intel wireless 5100 AGN adapter to support injection

i ran aireplay-ng -9 wlan0 and it seems that my intel PRO/Wireless 5100 AGN adapter does not support injection. i use Ubuntu 10.10 64bit (2.6.35-25-generic kernel). is it possible to make the adapter ...
2
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1answer
268 views

Is there a way to identify the location of a person trying to intrude your wifi network? my wifi router is picking up his attempts

Aug 30 20:28:09 dropbear[6799]: Child connection from ::ffff:5.10.69.82:38463 Aug 30 20:28:11 dropbear[6799]: login attempt for nonexistent user from ::ffff:5.10.69.82:38463 Aug 30 20:28:12 ...
2
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2answers
307 views

Wireless Positioning System (WPS) works without Internet?

As I understood it (correct me if mistaken); Wifi Positioning System has a network of routers of some sort, and when I plug in my new device, by using existing devices whose locations are known, they ...
2
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1answer
318 views

How to jam wireless AP?

The first comment under this question states: There are "smart jammer" techniques that are designed to mess with the protocol operations, not overwhelm the receiver with noise (e.g., for 802.11, ...
2
votes
1answer
542 views

Reassemble sniffed packets [closed]

I am attempting to analyse my WiFi network with on Mac OS X, is there a tool to reassemble TCP stream from Wireshark capture. I would like to see the entire HTML pages that are passing through the ...
2
votes
3answers
4k views

Cracking a wpa2-psk wifi

I'm cracking a wpa2-psk wifi with aircrack-ng. After popullating the *cap file I'll apply brute-force with john. The question is: What time is it recommend to run airodump-ng before killing it's ...
2
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1answer
1k views

What kind of wifi network does not have any protection and yet it's not an open network?

When I browse thru the list of wifi networks in my neighbour, I see a couple of unprotected networks (with no wpa/wpa2 or wep protection). When I try to connect, I cannot. These networks belong to ...
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2answers
97 views

What are the advantages to using a VPN over secured/trusted wifi

It's often recommended that you should use a VPN when using unsecured or untrusted networks, such as open public wifi or secured wifi that you don't control. What are the advantages to using a VPN on ...
2
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2answers
398 views

Wifi penetration testing: Why aireplay-ng de-authentication does not work?

I am trying to pentest the security of the password of my wireless network. It is a WPA2 with pre-shared-keys. My current computer is connected to the wifi router and I try to de-auth my own machine. ...
2
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1answer
71 views

Identification info that my wireless card sends to the (wifi) network

Are any other identification information that my wireless card sends to the Wi-Fi network apart from the MAC address ? If so are they changeable? Let's say, for example, that I connect to a Wi-Fi ...