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BoB12-sso / arp-spoof

arp-spoofing
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Packet Relay가 제대로 안되는 현상 #1

Closed snoopspy closed 1 year ago

snoopspy commented 1 year ago

attacker : 10.1.1.3(b4:2e:99:ea:97:de) sender : 10.1.1.2(e4:f8:9c:67:e4:cc) target : 10.1.1.1(90:9f:33:d9:a0:e3)

감염까지는 되나 sender가 ICMP packet을 attacker에게 보냈을 때 attacker는 Spoofed IP packet의 길이(98바이트)가 아닌 42바이트만 relay하는 버그가 있음.

https://github.com/ssoxong/arp-spoof/assets/4080232/28505e55-dde2-4ac9-8d1b-a8d00f566c74

ssoxong commented 1 year ago

modify pcap_sendpacket() size sizeof(EthArpPacet) to header->caplen