OUTLOOK 2003: OuchLook
From: Russ (Russ.Cooper_at_RC.ON.CA)
Date: 05/19/04
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Date: Tue, 18 May 2004 19:23:26 -0400 To: NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM
-----Original Message-----
From: http-equiv@excite.com [mailto:1@malware.com]
Sent: Tuesday, May 18, 2004 4:23 PM
To: NTBugtraq@listserv.ntbugtraq.com
Cc: Russ Cooper
Subject: OUTLOOK 2003: OuchLook
Sunday, May 09, 2004
Outlook 2003 the premier mail client from the company
called 'Microsoft' certainly appears to have a lot of security
features built into it. Cursory examination shows excellent
thought into 'spam' containment, 'security' consideration and
many other little 'things'.
However there is a fundamental flaw with this particular device.
That is, it copies our arbitrary file with given name into a
known and easily reachable location:
<img src="malware.htm" style="display:none">
when embedded into the body of a mail message and when the
recipient replies, will copy itself into temp folder:
C:\\Documents and Settings\\<user name>\\Local
Settings\\Temp\\malware.htm
This location can be quite easily reached without having to know
the user name [courtesy of jelmer]:
<a href="shell:user profile\\local
settings\\temp\\malware.htm">http://office.microsoft.com/>
The scenario is 'painstakingly' trivial. Send your co-hort at
the office an email that requires a reply. Embed in it, an html
file out of sight. Either send them a second message with any
number of 'spoofed' url schemes pointing to the file in the
temp, or, direct them to a web site which will reach in into the
temp folder via the same url and install and run our malicious
software.
Very Silly Design Error.
End Call
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