Microsoft Internet Explorer Crashes When Saving Files With Special Character Strings
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SecurityTracker Alert ID: 1010491
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SecurityTracker URL: http://securitytracker.com/id?1010491
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Jun 14 2004
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Impact: Denial of service via local system, Denial of service via network
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Exploit Included: Yes
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Version(s): 6.0; Tested on 6.0.2800.1106.xpclnt_qfe.021108-2107
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Description: Rafel Ivgi (The-Insider) reported a vulnerability in Microsoft Internet Explorer (IE). A remote user can create a link that will cause the target user's browser to crash when attempting to save the link.
It is reported that when a target user attempts to save the contents of a link that contains a certain character string ('::{') using
the "Save As" feature, the IE browser will crash due to a null pointer exception.
A demonstration exploit link is provided:
<a
href=::%7b>Right Click aOn Me And Click "Save Target As"</a>
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Impact: A remote user can create HTML that contains a link that will cause the target user's browser to crash when the target user attempts to save the link target.
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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: Exception handling error
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Underlying OS: Windows (Any)
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Reported By: Rafel Ivgi, The-Insider <theinsider@012.net.il>
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Message History:
None.
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Source Message Contents
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Date: Mon, 14 Jun 2004 23:20:33 +0200
From: Rafel Ivgi, The-Insider <theinsider@012.net.il>
Subject: Internet Explorer Remote Null Pointer Crash(mshtml.dll)
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Application: Internet Explorer
Vendors: http://www.microsoft.com
Versions: 6.0.2800.1106.xpclnt_qfe.021108-2107
Patched With: SP1;Q832894;Q330994;Q837009;Q831167;
ModName: mshtml.dll
ModVer: 6.0.2734.1600
Platforms: Windows
Bug: Remote/Local Null Pointer Crash
Exploitation: Remote with browser
Date: 14 Jun 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
===============
Internet Explorer is currently the most common internet browser in the
world.
It comes by default with every windows operating system. Therefore any
vulnerability
concerning it is an highly important issue.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
======
2) Bug
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Upon clicking "Save As" on a link with double colon --> "::"
and
a left curly bracket --> "{"
then
Internet Explorer Will Crash.
AppName: iexplore.exe AppVer: 6.0.2600.0 ModName: ntdll.dll
ModVer: 5.1.2600.114 Offset: 00056074
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
===========
3) The Code
===========
Paste into an htm/html file:
<center><a href=::%7b>Right Click aOn Me And Click "Save Target As"</a>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Scripts and Codes will make me D.O.S , but they will never HACK me."
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