01-19-2015 11:59 AM
Hello
As Two-Factor Authentication solution we are using yubico yubikeys (https://www.yubico.com/products/yubikey-hardware/yubikey-2/). These usb-devices generate a token which is 45 characters long. Unfortunately the global protect loginpage limits the maxlength of the password field to 40 characters. As I found out is that this input limitation is only in the html of the GP loginpage. Because if I remove the maxlength attribute, the login works with the yubikey as second factor.
What I tried as a workaround is the following short script in a custom GP loginpage:
<script type="text/javascript">
function setmaxlength () {
document.getElementsByName("passwd")[0].maxLength = "50";
}
</script>
This script I loaded with additional onload attribute in the BODY tag.
With this script the maxlength will be set to 50 characters but unfortunately then the login does not work because my short javascript seems to break the PaloAlto Javascript which will be added at the beginning of every custom global protect loginpage and so the password field for the second-factor-passwort will never show up.
Does anyone has an idea how to increase this maxlength attribute in the passwd field for the second-factor-password?
Regards,
Remo
01-20-2015 02:18 PM
Just tested this and it worked fine (with local authentication). Add this in the <head> section of the page:
We will be using Jquery to remove the attribute:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('input[name=passwd]').removeAttr( "maxlength" );
});
</script>
Hope this helps !
01-19-2015 12:58 PM
How did you remove the maxlength attribute ? If that works then we can try to remove the attribute using javascript.
01-19-2015 01:42 PM
Hi bat
In Firefox I have an addon called "Web Developper 1.2.5". There I have the option to change html-forms of websites I opened and for example remote maxlength attributes.
As I wrote I tried something with Javascript, but my skilles there are not very good, so at the moment my 2 lines of script break the default javascript which is required by paloalto.
01-19-2015 02:18 PM
Could you provide the URL to your global portal page I will try it on my PC
01-19-2015 02:32 PM
Hi bat
My global protect loginpage is the paloalto default at the moment.
But there you could see the issue
01-19-2015 02:32 PM
Could you try this in the javascript:
document.getElementsByTagName("passwd")[0].removeAttribute("maxLength");
Let me know how it goes.
01-19-2015 02:56 PM
Do you mean to load this by <BODY onload="FUNCTIONNAME()> or in another way?
01-19-2015 02:57 PM
Yeah I meant that way.
01-19-2015 03:15 PM
Unfortunately this does not work either. The same issue as with my first try to increase the maxlength value by javascript. This short script gets in conflict with the default script which is inserted by paloalto at the beginning of the website (before the <html> tag).
The loginprocess is the following:
1. username and passwort
2. klick on Login
3. new password-box shows up where I have to fill in the second factor from the yubikey
With yours or mine javascript (loaded with body onload) the first step is successfull but the password field for the second factor will never show up.
01-20-2015 02:18 PM
Just tested this and it worked fine (with local authentication). Add this in the <head> section of the page:
We will be using Jquery to remove the attribute:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('input[name=passwd]').removeAttr( "maxlength" );
});
</script>
Hope this helps !
01-20-2015 11:19 PM
Hi bat
Thank you very much for your help. This works perfectly 
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