Microsoft Internet Explorer Vulnerable Codebase Object Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1006169 |
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Feb 25 2003
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Impact: Execution of arbitrary code via network, User access via network
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Exploit Included: Yes
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Version(s): 5.5, 6.0
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Description: A vulnerability was reported in Microsoft Internet Explorer. A remote user can create HTML that will execute arbitrary code on the target user's computer.
A remote user can create specially crafted HTML that contains an executable file and scripting code so that, when a target user views
the HTML, the executable file will be executed on the target user's computer with the privileges of the target user.
According
to the report, this vulnerability resides in the codebase object that was reported as vulnerable by the author back in June 2002
(see Alert ID 1004436).
A demonstration exploit is available at:
http://www.malware.com/html.exe.zip
The exploit defines
an object with a classid of "clsid:66666666-6666-6666-6666" and a codebase attribute of "mhtml:'+path+'\\malware.html!file:///malware.exe"
[the embedded executable is named 'malware.exe'].
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Impact: A remote user can cause arbitrary code to be executed on the target user's computer.
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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: Access control error, State error
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Underlying OS: Windows (Any)
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Reported By: "http-equiv@excite.com" <http-equiv@malware.com>
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Message History:
None.
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Source Message Contents
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Date: Tue, 25 Feb 2003 21:44:46 -0000
From: "http-equiv@excite.com" <http-equiv@malware.com>
Subject: Self-Executing HTML: Internet Explorer 5.5 and 6.0 Part II
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Tuesday, February 25, 2003
We are delighted to learn that the original self-executing html file,
from June 1 2002 is now fixed with the most current of the many
patches for the Internet Explorer series of browsers. See:
http://online.securityfocus.com/archive/1/275126
Regrettably.
The following file is an html file comprising both scripting and an
executable [*.exe].
We inject scripting and an executable into the html file which is
designed to point back to the executable in the html file and execute
it. Provided the html file is an html file, Internet Explorer 5.5 and
6.0 will execute it.
Because it is an html file proper, Internet Explorer opens it. The
scripting inside is then parsed and fired. That scripting is pointing
back to the same executable file with our original codebase object
from the year 2000 and because it is a self-executing html file, it
executes !
Tested IE5.5 and IE6. Fully self-contained harmless *.exe:
http://www.malware.com/html.exe.zip
Be aware of html files out there.
Key Words: Trust it's Worthy so Think it's Tank silly obvious
--
http://www.malware.com
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