Security Basics mailing list archives

Re: [WEB SECURITY] Re: Minimal User Interaction with Links


From: "51l3n73y3s" <51l3n7 () live in>
Date: Mon, 17 Aug 2009 20:52:45 +0530

The strange thing is that it stops happening at times and then recurs again on the same machine, same browser(FF) with the same configuration, same machine. Is this behavior noticed with chrome too?

Regards, Sandeep
--------------------------------------------------
From: "Schmidt, Chris" <cschmidt () servicemagic com>
Sent: Monday, August 17, 2009 7:24 PM
To: "51l3n73y3s" <51l3n7 () live in>; "Steven M. Christey" <coley () linus mitre org>; <micheal.espinola () gmail com>
Cc: <security-basics () securityfocus com>; <websecurity () webappsec org>
Subject: RE: [WEB SECURITY] Re: Minimal User Interaction with Links

FWIW

Chrome also says it is an invalid cert...

-----Original Message-----
From: 51l3n73y3s [mailto:51l3n7 () live in]
Sent: Friday, August 14, 2009 5:36 PM
To: Steven M. Christey; micheal.espinola () gmail com
Cc: security-basics () securityfocus com; websecurity () webappsec org
Subject: Re: [WEB SECURITY] Re: Minimal User Interaction with Links

Steve,

I agree completely with you.

This link
http://www.google.co.in/#hl=en&q=limited+users+test&btnG=Google+Search&m
eta=&aq=f&fp=2cf627ce33d082a9
will not give a certificate problem with IE, but with Mozilla Firefox
3.5.2
it throws an invalid certificate for the first website in the results
page.
Someone trying to fake a military website, Probably? That is off thread,
if
someone wants to report that. It shouldn't throw the certificate warning
at
all. All I did was to search in Google for "limited users test" (without

quotes) and coincidentally  it came up as the first result. Perhaps it's

still the first. A bug's been filed at
https://bugzilla.mozilla.org/show_bug.cgi?id=510448 cause I think this
is
not normal. It doesn't happen with 3.0, It doesn't happen with IE
6.0.2900
that I have. The browser is not handling this properly. It should keep
that
to itself(Block it) even if it's checking each link for validity, though
I
don't see a reason why it should even do that.

-Sandeep Cheema


--------------------------------------------------
From: "Steven M. Christey" <coley () linus mitre org>
Sent: Saturday, August 15, 2009 2:41 AM
To: <micheal.espinola () gmail com>
Cc: "51l3n73y3s" <51l3n7 () live in>; <security-basics () securityfocus com>;
<websecurity () webappsec org>
Subject: Re: [WEB SECURITY] Re: Minimal User Interaction with Links


On Fri, 14 Aug 2009, Micheal Espinola Jr wrote:

Under normal circumstances, no, it is not possible in this day and
age
(i.e with an up-to-date OS) to automatically execute/save a file by
clicking a link.

It's possible to do this automatically, without any user interaction,
by
referencing vulnerable ActiveX controls with insecure exposed methods
with
names like DownloadAndExecuteFile() (see CVE-2008-4586 for example).

These types of issues are starting to show up fairly regularly in CVE.
Very few researchers seem to be paying attention to Firefox plug-ins,
but
once they do, I expect to see similar results there, too.

Theoretically it's within the browsers' security models to avoid the
automatic save/execute of files, but browser bugs and the
aforementioned
plugin vulnerabilities mean that practically speaking, it's still
possible.  I assume the more knowledgeable Flash experts among us have
their own suggestions.

- Steve


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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------


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