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Re: [WEB SECURITY] MachineID fingerprinting



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Hello all,

MAC Addresses can be spoofed...and if you are looking for a secure system,
don't rely on the authenticity of mac addresses.

You may wish to verify this by looking at the following URLs...or just do a
google search on "Mac Address Spoofing".
http://en.wikipedia.org/wiki/MAC_address
http://ezine.daemonnews.org/200406/netgraph.html

If you are looking to secure communications between client and server
machines, you might be interested in using SSLExplorer.

You can read about it from here.
http://www.sshtools.com/showSslExplorer.do

And you can download it from here.
http://sourceforge.net/projects/sslexplorer/



On 8/8/07, Walt Williams <walt.williams@gmail.com> wrote:
>
> you may benefit from reading the defcon presentation on how easily
> things like this are spoofed.
>
> On 8/8/07, robert@webappsec.org <robert@webappsec.org> wrote:
> > I am talking about device fingerprinting not IP fingerprinting.
> > I am specifically looking for people who have reviewed such technologies
> and their experiences with them (not
> > a vendor response).
> >
> >
> > Regards,
> > - Robert
> > http://www.webappsec.org/
> > http://www.cgisecurity.com/
> > >
> > > A web server can identify the IP address of incoming requests - maybe
> that
> > > is what the Bank of America do. But this can easily be sidestepped if
> your
> > > request goes through a proxy.
> > >
> > >
> > > Robert Purvis
> > > Principal Technical Specialist
> > >
> > >
> > > Systems and Service Delivery
> > > NHS Connecting for Health
> > > 01392 206691
> > > robert.purvis@nhs.net
> > > www.connectingforhealth.nhs.uk
> > >
> > > -----Original Message-----
> > > From: robert@webappsec.org [mailto:robert@webappsec.org]
> > > Sent: 08 August 2007 05:24
> > > To: websecurity@webappsec.org
> > > Subject: [WEB SECURITY] MachineID fingerprinting
> > >
> > > Yo list!
> > >
> > > Has anyone had any experience with machineid technologies on the list?
> > > Specifically the ability to identify 1 machine and the ability to
> identify
> > > multiple users on the same machine either using javascript or via an
> > > installed application.
> > >
> > > For example Bank of america uses this technology to some exist to
> remember
> > > your machine and provide additional challenge responses if it doesn't
> > > recognize it. If you've evaluated a technology and found it to be
> worthless
> > > I am also interested in finding out why.
> > >
> > > Thanks
> > > - Robert
> > > http://www.webappsec.org/
> > > http://www.cgisecurity.com/
> > >
> > >
> ----------------------------------------------------------------------------
> > > Join us on IRC: irc.freenode.net #webappsec
> > >
> > > Have a question? Search The Web Security Mailing List Archives:
> > > http://www.webappsec.org/lists/websecurity/
> > >
> > > Subscribe via RSS:
> > > http://www.webappsec.org/rss/websecurity.rss [RSS Feed]
> > >
> > >
> > >
> > > **********************************************************************
> > > This message  may  contain  confidential  and  privileged information.
> > > If you are not  the intended  recipient please  accept our  apologies.
> > > Please do not disclose, copy or distribute  information in this e-mail
> > > or take any  action in reliance on its  contents: to do so is strictly
> > > prohibited and may be unlawful. Please inform us that this message has
> > > gone  astray  before  deleting it.  Thank  you for  your co-operation.
> > >
> > > NHSmail is used daily by over 100,000 staff in the NHS. Over a million
> > > messages  are sent every day by the system.  To find  out why more and
> > > more NHS personnel are  switching to  this NHS  Connecting  for Health
> > > system please visit www.connectingforhealth.nhs.uk/nhsmail
> > > **********************************************************************
> > >
> >
> >
> >
> ----------------------------------------------------------------------------
> > Join us on IRC: irc.freenode.net #webappsec
> >
> > Have a question? Search The Web Security Mailing List Archives:
> > http://www.webappsec.org/lists/websecurity/
> >
> > Subscribe via RSS:
> > http://www.webappsec.org/rss/websecurity.rss [RSS Feed]
> >
> >
>
>
> --
> Walt Williams, CISSP, SSCP
>
>
> ----------------------------------------------------------------------------
> Join us on IRC: irc.freenode.net #webappsec
>
> Have a question? Search The Web Security Mailing List Archives:
> http://www.webappsec.org/lists/websecurity/
>
> Subscribe via RSS:
> http://www.webappsec.org/rss/websecurity.rss [RSS Feed]
>
>

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Hello all,<br><br>MAC Addresses can be spoofed...and if you are looking for a secure system, don&#39;t rely on the authenticity of mac addresses. <br><br>You may wish to verify this by looking at the following URLs...or just do a google search on &quot;Mac Address Spoofing&quot;.
<br><a href="http://en.wikipedia.org/wiki/MAC_address";>http://en.wikipedia.org/wiki/MAC_address</a><br><a href="http://ezine.daemonnews.org/200406/netgraph.html";>http://ezine.daemonnews.org/200406/netgraph.html</a><br><br>
If you are looking to secure communications between client and server machines, you might be interested in using SSLExplorer.<br><br>You can read about it from here.<br><a href="http://www.sshtools.com/showSslExplorer.do";>
http://www.sshtools.com/showSslExplorer.do</a><br><br>And you can download it from here.<br><a href="http://sourceforge.net/projects/sslexplorer/";>http://sourceforge.net/projects/sslexplorer/</a><br><br><br><br><div><span class="gmail_quote">
On 8/8/07, <b class="gmail_sendername">Walt Williams</b> &lt;<a href="mailto:walt.williams@gmail.com";>walt.williams@gmail.com</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
you may benefit from reading the defcon presentation on how easily<br>things like this are spoofed.<br><br>On 8/8/07, <a href="mailto:robert@webappsec.org";>robert@webappsec.org</a> &lt;<a href="mailto:robert@webappsec.org";>
robert@webappsec.org</a>&gt; wrote:<br>&gt; I am talking about device fingerprinting not IP fingerprinting.<br>&gt; I am specifically looking for people who have reviewed such technologies and their experiences with them (not
<br>&gt; a vendor response).<br>&gt;<br>&gt;<br>&gt; Regards,<br>&gt; - Robert<br>&gt; <a href="http://www.webappsec.org/";>http://www.webappsec.org/</a><br>&gt; <a href="http://www.cgisecurity.com/";>http://www.cgisecurity.com/
</a><br>&gt; &gt;<br>&gt; &gt; A web server can identify the IP address of incoming requests - maybe that<br>&gt; &gt; is what the Bank of America do. But this can easily be sidestepped if your<br>&gt; &gt; request goes through a proxy.
<br>&gt; &gt;<br>&gt; &gt;<br>&gt; &gt; Robert Purvis<br>&gt; &gt; Principal Technical Specialist<br>&gt; &gt;<br>&gt; &gt;<br>&gt; &gt; Systems and Service Delivery<br>&gt; &gt; NHS Connecting for Health<br>&gt; &gt; 01392 206691
<br>&gt; &gt; <a href="mailto:robert.purvis@nhs.net";>robert.purvis@nhs.net</a><br>&gt; &gt; <a href="http://www.connectingforhealth.nhs.uk";>www.connectingforhealth.nhs.uk</a><br>&gt; &gt;<br>&gt; &gt; -----Original Message-----
<br>&gt; &gt; From: <a href="mailto:robert@webappsec.org";>robert@webappsec.org</a> [mailto:<a href="mailto:robert@webappsec.org";>robert@webappsec.org</a>]<br>&gt; &gt; Sent: 08 August 2007 05:24<br>&gt; &gt; To: <a href="mailto:websecurity@webappsec.org";>
websecurity@webappsec.org</a><br>&gt; &gt; Subject: [WEB SECURITY] MachineID fingerprinting<br>&gt; &gt;<br>&gt; &gt; Yo list!<br>&gt; &gt;<br>&gt; &gt; Has anyone had any experience with machineid technologies on the list?
<br>&gt; &gt; Specifically the ability to identify 1 machine and the ability to identify<br>&gt; &gt; multiple users on the same machine either using javascript or via an<br>&gt; &gt; installed application.<br>&gt; &gt;<br>
&gt; &gt; For example Bank of america uses this technology to some exist to remember<br>&gt; &gt; your machine and provide additional challenge responses if it doesn&#39;t<br>&gt; &gt; recognize it. If you&#39;ve evaluated a technology and found it to be worthless
<br>&gt; &gt; I am also interested in finding out why.<br>&gt; &gt;<br>&gt; &gt; Thanks<br>&gt; &gt; - Robert<br>&gt; &gt; <a href="http://www.webappsec.org/";>http://www.webappsec.org/</a><br>&gt; &gt; <a href="http://www.cgisecurity.com/";>
http://www.cgisecurity.com/</a><br>&gt; &gt;<br>&gt; &gt; ----------------------------------------------------------------------------<br>&gt; &gt; Join us on IRC: <a href="http://irc.freenode.net";>irc.freenode.net</a> #webappsec
<br>&gt; &gt;<br>&gt; &gt; Have a question? Search The Web Security Mailing List Archives:<br>&gt; &gt; <a href="http://www.webappsec.org/lists/websecurity/";>http://www.webappsec.org/lists/websecurity/</a><br>&gt; &gt;<br>
&gt; &gt; Subscribe via RSS:<br>&gt; &gt; <a href="http://www.webappsec.org/rss/websecurity.rss";>http://www.webappsec.org/rss/websecurity.rss</a> [RSS Feed]<br>&gt; &gt;<br>&gt; &gt;<br>&gt; &gt;<br>&gt; &gt; **********************************************************************
<br>&gt; &gt; This message&nbsp;&nbsp;may&nbsp;&nbsp;contain&nbsp;&nbsp;confidential&nbsp;&nbsp;and&nbsp;&nbsp;privileged information.<br>&gt; &gt; If you are not&nbsp;&nbsp;the intended&nbsp;&nbsp;recipient please&nbsp;&nbsp;accept our&nbsp;&nbsp;apologies.<br>&gt; &gt; Please do not disclose, copy or distribute&nbsp;&nbsp;information in this e-mail
<br>&gt; &gt; or take any&nbsp;&nbsp;action in reliance on its&nbsp;&nbsp;contents: to do so is strictly<br>&gt; &gt; prohibited and may be unlawful. Please inform us that this message has<br>&gt; &gt; gone&nbsp;&nbsp;astray&nbsp;&nbsp;before&nbsp;&nbsp;deleting it.&nbsp;&nbsp;Thank&nbsp;&nbsp;you for&nbsp;&nbsp;your co-operation.
<br>&gt; &gt;<br>&gt; &gt; NHSmail is used daily by over 100,000 staff in the NHS. Over a million<br>&gt; &gt; messages&nbsp;&nbsp;are sent every day by the system.&nbsp;&nbsp;To find&nbsp;&nbsp;out why more and<br>&gt; &gt; more NHS personnel are&nbsp;&nbsp;switching to&nbsp;&nbsp;this NHS&nbsp;&nbsp;Connecting&nbsp;&nbsp;for Health
<br>&gt; &gt; system please visit <a href="http://www.connectingforhealth.nhs.uk/nhsmail";>www.connectingforhealth.nhs.uk/nhsmail</a><br>&gt; &gt; **********************************************************************<br>&gt; &gt;
<br>&gt;<br>&gt;<br>&gt; ----------------------------------------------------------------------------<br>&gt; Join us on IRC: <a href="http://irc.freenode.net";>irc.freenode.net</a> #webappsec<br>&gt;<br>&gt; Have a question? Search The Web Security Mailing List Archives:
<br>&gt; <a href="http://www.webappsec.org/lists/websecurity/";>http://www.webappsec.org/lists/websecurity/</a><br>&gt;<br>&gt; Subscribe via RSS:<br>&gt; <a href="http://www.webappsec.org/rss/websecurity.rss";>http://www.webappsec.org/rss/websecurity.rss
</a> [RSS Feed]<br>&gt;<br>&gt;<br><br><br>--<br>Walt Williams, CISSP, SSCP<br><br>----------------------------------------------------------------------------<br>Join us on IRC: <a href="http://irc.freenode.net";>irc.freenode.net
</a> #webappsec<br><br>Have a question? Search The Web Security Mailing List Archives:<br><a href="http://www.webappsec.org/lists/websecurity/";>http://www.webappsec.org/lists/websecurity/</a><br><br>Subscribe via RSS:<br>
<a href="http://www.webappsec.org/rss/websecurity.rss";>http://www.webappsec.org/rss/websecurity.rss</a> [RSS Feed]<br><br></blockquote></div><br>

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