bugtraq - RE: Security issue in Microsoft Outlook

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Message-ID: <AD712A413F951A4988D24E3DFB62A5A324A9F7@se01.Dallas.covetrix.net>
Date: Fri, 20 May 2005 14:17:15 -0500
From: "David Corn" <david@...etrix.com>
To: "Scovetta, Michael V" <Michael.Scovetta@...com>,
	"Bakchodiya" <bakchodiya@...oo.com>, <bugtraq@...urityfocus.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: RE: Security issue in Microsoft Outlook

That's exactly what I said earlier.  The thing is this is NOT outlook
specific, ANY program that allows HTML is subject to this.  <a
href=someurl>fake name</a> This is far from a security risk, HTML is a
feature not a bug. 

David Corn
Security Consultant
Covetrix, IT Consulting Group
http://www.covetrix.com
Phone: 214-575-9583 x116
Fax: 214-575-9584

-----Original Message-----
From: Scovetta, Michael V [mailto:Michael.Scovetta@...com] 
Sent: Wednesday, May 18, 2005 5:42 PM
To: Bakchodiya; bugtraq@...urityfocus.com
Cc: full-disclosure@...ts.grok.org.uk
Subject: RE: Security issue in Microsoft Outlook

Sorry to shoot you down, but this isn't a security issue at all. You can
do the same thing by typing some text, highlighting it, right-clicking,
clicking Hyperlink, and typing an address. 

On the receiving end, the client will get:
<a href="http://www.foo-labs.info">http://www.cybertrion.com</a>
which is perfectly fine. They'll see after they click on the link that
they're going to foo-labs. At that point, it's out of Outlook's hands.

Now, if Outlook showed in the mouseover the cybertrion.com link, then
they would be a problem, but it appears to be working fine on Outlook
2003. Haven't tested previous versions, but this seems like it's
"working as designed".  

Regards,

Michael Scovetta
Computer Associates
Senior Application Developer

-----Original Message-----
From: Bakchodiya [mailto:bakchodiya@...oo.com] 
Sent: Wednesday, May 18, 2005 4:28 PM
To: bugtraq@...urityfocus.com
Cc: full-disclosure@...ts.grok.org.uk
Subject: Security issue in Microsoft Outlook

An issue has been discovered in MS Outlook (All
Versions) where anyone can fake a URL & send it
across.

How does it work:

Lets compose an email in MS Outlook, lets type

http://www.cybertrion.com & put a space after it to
make it a link. Now put your cursor just before
cybertrion & type any URL for eg: 
http://www.foo-labs.info now send it to anyone. The
receiver will see the URL as http://www.foo-labs.info
but when he clicks on it it will directly take him to
http://www.cybertrion.com

I am not sure how critical this is but it can fool
alot of people & result in download of a virus.

For more details and Discovered by:
Cybertrion Systems,
http://www.cybertrion.com

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