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Analysis and Review

How to modify the Cisco Clean Access web login page

September 16, 2008 by Kurt Turner

Cisco clean access web login page can be modified via html editing. I only want to do this to remove the Cisco Clean Access branding from the login page on the bottom left hand corner. If a Black Hat plugged into our network they would get the web auth (authentication) page from Cisco Clean Access. They would know it’s CCA and then be able to work out a hack to get by it. Okay now lets modify the CCA web login page so you don’t know its a Cisco product!

So if you feel you have to make that change, the file to look at is /perfigo/access/tomcat/webapps/auth/perfigo_login.jsp on the CAS. Look at the last few lines of this file.

Okay to modify perfigo_login.jsp just type

#vi perfigo_login.jsp

scroll down and find the lines mentioned below and hit the “d” key to remove the lines one at a time. Or you can modify them by pressing the “i” key

once finished hit the “esc” key and then type “wq!”

<%=btag%>
<font size=’1′>Powered by <a href=”http://www.cisco.com”>Cisco Clean Access</a></font>
<%=etag%>

Remove – <font size=’1′>Powered by <a href=”http://www.cisco.com”>Cisco Clean Access</a></font>

I also recommend removing the top of the html as follows

// @(#) perfigo_login.jsp Mon Feb 11 20:56:20 PST 2008
//
// Copyright 2006 Cisco Systems, Inc. All rights reserved.
// CISCO PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
// Any unauthorized modification of this source code will be
// considered a violation of license terms and will void any warranty.

Filed Under: Networking

Comments

  1. Arch says

    March 7, 2013 at 8:11 pm

    Avoiding the keen eye of a black hat isn’t a good a motivation to make this change. They could just google ‘perfigo_weblogin.jsp’ and find out they’re dealing with a cicso based authentication system (partially thanks to this post of yours). A better justification to do this would be for the shear sake of customization.

  2. Kurt says

    March 7, 2013 at 8:28 pm

    GOOD POINT! Never the less, security by obscurity never hurt anyone.

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