Vulnerability Development mailing list archives

RE: IE troubles with image files


From: "Dom De Vitto" <dom () devitto com>
Date: Sat, 4 Aug 2001 11:46:24 +0100

This is a feature (!)
It's the same idea ('explorer' code?) behind
        copy file.xls file.whateverext
        start file.whateverext
...starts Excel.
Also works for all the other Office apps.

Rule: Don't trust extentions.

This even works if you email file.whateverext to someone,
they save the attachment and then double click it.....

Dom
-----Original Message-----
From: Hackemate.com.ar [mailto:hackemate () softhome net]
Sent: 03 August 2001 22:33
To: bugtraq () securityfocus com
Cc: vuln-dev () securityfocus com; metalhack () yahoogroups com
Subject: IE troubles with image files


Making some tests and analisys I have just realised a bug (?) in
Internet Explorer 5.0. If you rename a GIF or JPG file to TXT, IE
cant open it, it just stares and finishes cancelling.
So IE cant open TXTs files wich start with:

GIF89a --->for gif files
for jpgs i am not sure

KerozenE 1999-2001 c0oL!
ICQ: 78480975
www.hackemate.com.ar
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