Educause Security Discussion mailing list archives

Re: URL switching in e-mails


From: Valdis Kletnieks <Valdis.Kletnieks () VT EDU>
Date: Tue, 3 Jan 2006 14:50:28 -0500

On Tue, 03 Jan 2006 14:04:06 EST, Justin Sipher said:

MailScanner has detected a possible fraud attempt from
"www.bogus.com" claiming to be http://www.real-url.com

We are now getting some push back from users claiming that this
inserted text makes it "beyond difficult" to read the messages
clearly. (please don't laugh)

If the intent was to send HTML, then MailScanner's "solution" *will*
result in unreadable text.  I don't blame the users for complaining.

Perhaps you need to do what SlashDot does - provide an option for a *small*
tag identifying the real target:

< a href="http://www.real-url.com";>Your Bank Here</a> <b>[real-url.com]</b>

if the text and the href don't match.

Of course, for properly designed HTML, the two *shouldn't* match, because
even the < a href="http://www.google.com>Click here for more info</a> abusage
doesn't match.  If they *do* match, the visible text is an ugly URL rather than
nice readable text... ;)

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